A&P2 Exam 5 (Reproductive System, Pregnancy & Development, and Heredity)

Digestion of the zone pellucida occurs because of the

acrosomal reaction

The main source of androgens in women is the

adrenal cortex

The structure that forms the umbilical cord in the developing embryo

allantois

Which exta-embryonic membrane forms the umbilical cord?

allantois

The structure that secrets fluid that surrounds and protects the developing embryo

amnion

The meiotic phase in which the homologous pairs of chromosomes separate to opposite sides of the cell.

anaphase I

During what phase of meiosis do chromatids separate to opposite sides?

anaphase II

The meiotic phase in which sister chromatids migrate to opposite ends

anaphase II

Formation of sperm cells requires both testosterone and

androgen binding protein

The source of prolactin

anterior pituitary

The source of follicle stimulating hormone is the

anterior pituitary gland

The source of luteinizing hormone is the

anterior pituitary gland

What is the name of the fluid filled space in a maturing follicle

antrum

Which of the following explains Down syndrome?

autosomal trisomy

Human chorionic gonadotropin is secreted by the

blastocyst

The collectionof cells forming a fluid-filled follow sphere that reaches the uterus

blastocyst

The collection of cells forming a fluid-filled hollow sphere that reaches the uterus

blastocyte

The penis is anchored to the inferior surface of deep muscles of the perineum by the ____ of the penis

bulb

Attachment of the penis to the urogenital diaphragm is due the

bulb of the penis

The _____ muscle surrounds the bulb of the penis

bulbospongiosus

The _____ secretes a clear viscous fluid that clears the urethra of urine residue

bulbourethral gland

What process enables the sperm to be capable of penetrating the zona pellucida and bind to the egg?

capacitation

What is the name for the tubular extension of the uterus that leads toward the vagina?

cervix

The embryonic portion of the placental membrane

chorion

The process of examining fetal cells from the chorionic villi for genetic disorders is

chorionic villus sampling

What type of tissue would you expect to find lining the mucosa of the uterine tubes?

ciliated columnar epithelium

The ____ is a highly sensitive structure with erectile tissue

clitoris

The A allele and B allele in the ABO blood type show which pattern of gene expression?

codominance

What is an example of sex-linked inheritance?

color blindness

Barring abstinence, the most effective method of preventing sexually transmitted disease is

condom

Erection involes blood filling the erectile tissue of the two _____ on the dorsal surface

corpora cavernosa

The ____ of the pvary secretes estrogen and progesterone during the luteal phase of the ovarian cycle

corpus luteum

The ruptured ovulating follicle forms the ___ due to luteinizing hormone

corpus luteum

The source of estrogen in women during the secretory phase is the

corpus luteum

The source of progesterone in women is the

corpus luteum

The source of the female sex hormones during the first month of pregnancy

corpus luteum

The source of the female sex hromones during the first month of pregnancy

corpus luteum

What ovarian structure secretes female sex hormones after ovulation?

corpus luteum

What structure secretes estrogen and progesterone to promote thickening of the endometrium?

corpus luteum

Expansion of the single _____ along the ventral surface opens the urethra

corpus spongiosum

Thermoregulation of the primary male sex organ involves skeletal muscle called the

cremaster muscle

The penis is anchors to the ishium y the ___ of the penis

crura

Thermoregulation of the primary male sex organ involves smooth muscle called the

dartos muscle

Pregnancy testes detect the presence or absence of the hormone ____ in urine

human chorionic gonadotropin

The hormone which maintains the corpus luteum after fertilization

human chorionic gonadotropin

Maintenance of the corpus luteum is dependent on the secretion of _____ by the trophoblast cells of the blastocyte

human chorionic gonadotropin (hCG)

What is the name of the partial partition covering the vagina?

hymen

In which pattern of genetic expression would a heterozygous individual have a phenotype that is intermediate between homozygous dominant and homozygous recessive?

incomplete dominance

Sick-cell trait is an example of

incomplete dominance

What type of hernia involves movement of a loop of the intestine into the opening between the abdominal cavity and scrotum?

inguinal hernia

The cells that will actually develop into the primary germ layers.

inner cell mass

The ____ urethral sphincter of the male reflexively constricts to prevent urination during ejaculation

internal

Testosterone is produced by the

interstitial cells

The ___ of the testes secrete testosterone and other androgens

interstitial cells

The main source of androgens in men is the:

interstitial cells

The contraceptive method that prevents embryo implantation is a

interuterine device

The process of returning the uterus to a pre-pregnant size over time is known as

involution

Which process involves reducing the uterus back to the pre-pregnant size?

involution

The myometrium

is composed of smooth muscle

The endometrium

is the mucosal lining of the uterine cavity

The perimetrium

is the outermost layer of the uterus

The _____ muscle surrounds the crura of the penis

ischiocavernosus

Which hormone is needed for expression of milk from the mammary glands?

oxytocin

Erection is a neural reflex involving the ___ nervous system

parasympathetic

The ____ glands are embedded in the wall of the urethra and secrete mucus at the external urethral orifice

paraurethral

The _____ is homologous to the prostate gland

paraurethral gland

Which of the following can be used to trace a genetic trait through several generations?

pedigree

The outer serosa of the uterus is the

perimetrium

The diamond-shaped ____ is the region of soft tissue located between the pubic arch, ischial tuberosities, and coccyx

perineum

What term refers to the actual traits expressed in an individual?

phenotype

The source of the female sex hormones during the second and third trimester.

placenta

In which pattern of genetic expression would an allele at a single locus have effects on two or more traits?

pleiotropy

The birth process is an example of

positive feedback

The source of oxytocin

posterior pituitary

the source of oxytocin

posterior pituitary

Testosterone stimulation of ____ sexual characteristics include development and enlargement of male sex organs

primary

The type of follicle that is part of the group that begins to develop with stimulation from follicle stimulating hormone (FSH) is a:

primary follicle

Which ovarian follicle has simple cuboidal cells surrounding the oocyte and is first stimulated by follicle stimulating hormone

primary follicle

Approximately once a month, a group of ____ are stimulated into further stages of meoisis and try to develop into

primary oocytes, secondary oocytes

Once a spermatogenic cell differentiates into a ____, it must undergo meiosis

primary spermatocyte

The type of cell that undergoes the first meiotic division is the

primary spermatocyte

An allele that is only expressed if both alleles are the same is said to be

recessive

The O allele in the ABO blood type show which pattern of gene expression?

recessive

What hormone causes the pubic symphysis to soften and separate?

relaxin

Which ligament anchors the uterus to the anterior body wall?

round ligament

A series of transverse folds along the vagina are called

rugae

The ____ is the skin pouch that supports the primary male sex organ

scrotum

Thermoregulation of the testes is maintained by the cremaster muscle and the dartos muscle of the

scrotum

male structure that houses the testes

scrotum

What type of glands are found in the areola of the breast?

sebaceous glands

Testosterone stimulation of ____ sexual characteristics include devleopment and enlargement of muscular growth, wide shoulders, narrow hips, enlargement of the larynx, and pubic, axillary, facial, chest, and back hair

secondary

The source of estrogen in women during the proliferative phase is the

secondary follicle

The type of follicle that has two or mroe layers of follicular cells surrounding the egg cell is a

secondary follicle

Generally, only one ____ is ovulated each month

secondary oocyte

Oogenic cells that contain 23 "double chromatid" chromosomes are

secondary oocyte

In the testes, the first meiotic division forms cells called ____ which have 23 double chromosomes

secondary spermatocytes

Spermatogenic cells that begin the second meiotic division are called

secondary spermatocytes

The ____ phase of rhe uterine cycle refers to endometrial glands secreting nutritious glycogen into the uterine cavity

secretory

The _____ phase of the uterine cycle is the most consistent at 14 days due to the maintence of the corpus luteum

secretory

The phase of the uterine cycle that begins after ovulation is the:

secretory

The phase of the uterine cycle that varies the least is the:

secretory phase

Which phase of the uterine cycle is the most consistent in its length?

secretory phase

the phase of the uterine cycle that is maintained following successful fertilization is the

secretory phase

Around 70% of the volume of semen is produced by the

seminal vesicles

The two ____ secrete an alkaline, viscous fluid containing fructose and clotting proteins

seminal vesicles

Male gametes are formed in tubular structures called

seminiferous tubules

Identical twins result from

separation of the morula

Genes such as color blindness that are located on the X chromosome are considered _________.

sex-linked

What is an example of incomplete dominance

sickle cell trait

The expulsion phase of ejaculation due to contraction of the bulbospongiosus muscle involves the ____ nervous system

somatic

In the testes, the second meiotic division forms cells called _____ which have 23 single chromosomes

spematids

The male gametes are called

sperm

The process of ___ forms sperm cells through differentiation

spermatogenesis

Undifferentiated spermatogenic cells that can undergo mitosis are called

spermatogonia

Males are capable of sexual reproduction through their entire lives because the ____ can reproduce themselves by mitosis

spermatogonium

The process of forming male gametes through meiosis is

spermiogenesis

The longest region of the male urethra is the _____ urethra

spongy (penile)

Gonadotropin releasing hormone (GnRH)

stimulates the release of follicle stimulating hormone (FSH) and luteinizing hormone (LH)

____ epithelium lines the vagina

stratified squamous

Which layer of the uterus is shed during menstruation?

stratum functionalis

The _______ form a blood testes barrier that prevents sperm cells from coming in direct contact with blood

sustentacular cells

The emission phase of ejaculation is a neural reflex of the ___ nervous system

sympathetic

Emission of sperm and glandular secretions from male accessory glands is dependent on

sympathetic nervous system

The meiotic phase resulting in spermatids

telophase II

The primary male sex organ is the

testes

The production of sperm cells occurs in the seminiferous tubules of the

testes

The hormone that develops and maintains male secondary sexual characteristics is

testosterone

Only one male gamete usually fertilizes a female gamete because fertilization causes

the block to polyspermy

The placenta assumes hormone production from the ovaries by the

third month

Which structure is responsible for the formation of sperm?

Seminiferous tubule

The phase of the uterine cycle resulting from a decrease in female sex hormones is the

WRONG

Mature male gametes are the only cell in the human body with

a flagellum

Swelling and elongation of the penis depends on

blood accumulation in erectile tissue

What structure is responsible for ejaculation of semen?

bulbospongiosus

Which muscle surrounds the structure that anchors the penis to the urogenital diaphragm?

bulbospongiosus

Ejaculation depends on somatic reflex causing contraction of the

bulbospongiosus muscle

The clear viscous fluid of the _____ neutralizes any residual urine in the urethra prior to ejaculation

bulbourethral gland

Which structure is responsible for lubricating the urethra prior to ejaculation?

bulbourethral gland

The process of activating cells to be capable of fertilizing an egg is

capacitation

Columnar epithelial cells of the uterine tubes are one of the few sites in the human body in which the cells have

cilia

The mass of sensitive erectile tissue in a female that is similar to the glans penis in a male is the

clitoris

Which structure is responsible for thermoregulation of the testes?

cremaster muscle

During prophase I, exchange of genetic information between homologous chromosomes can occur in the synapsis by

crossover

Recombinant chromosomes occur when chromosome pairs exchange sections of DNA in a process called

crossover

Cessation of a women's menstrual cycle results from a

decrease number of follicles sensitive to gonadotropins

_______________ traits are always expressed, whether in the heterozygous or the homozygous form

dominant

When do primary oocytes form?

during prenatal development

The duct that connects the vas deferens to the urethra is the

ejaculatory duct

The stratum functionalis layer of the _____ of the uterine wall undergoes cyclic changes in response to ovarian hormones

endometrium

Which structure is responsible for storing the sperm for up to two months prior to ejaculation?

epididymis

What are the names for the exntensions of the uterine tube that creates currents to draw in an ovulated oocyte?

fimbria

What structure helps sweep the ovulated egg into the uterine tube?

fimbriae

What is the name for the rounded region of the uterus superior to the entrance of the uterine tubes?

fundus

The sensitive region of the male copulatory organ is the

glans penis

Descent of the testes involes shortening of the

gubernaculum

The human cell generally contains 23 pairs of _______ chromosomes

homologous

In _______________, the heterozygous condition is expressed as a blending or intermediate between those of the dominant and recessive traits

imcomplete dominance

The ____ of the blastocyte becomes the embryo with further development

inner cell mass

The myometrium

is the thick, middle layer of the uterus

The hormone which "triggers" the rupture and release of the "egg cell"

luteinizing hormone

The trigger for ovulation is a relatively high surge in the hormone ___ at day 14

luteinizing hormone

Which hormone stimulates the interstitial cells to produce androgens?

luteinizing hormone

The process of forming gametes, either sperm cells or egg cells, involves the cell division called

meiosis

the shedding of endometrial tissue from the uterus during the menstrual cycle is called

menstruation

The contraceptive method that prevents ovulation is a

oral contraceptive

The primary female sex organ are the

ovaries

Production of egg cells occur in the ovarian follicles of the

ovary

The rupture of an ovarian follicle and release of the "egg cell" is called

ovulation

Labor contractions are the result of the interaction of hormones and substances like

oxytocin and prostaglandin

Which female structure is homologous to the prostate gland?

paraurethral gland

The duct that passes through the shaft of the penis is the

penile urethra

The way that genetic makeup is expressed in the body is called an individual's:

phenotype

The ______ forms from the chorion and the decidua basalis

placenta

the non-viable cell with little cytoplasm resulting from oogenesis are called a

polar body

Human traits like skin color, height, metabolic rate, and intelligence exhibit

polygene inheritance

Circumcision involves removal of the

prepuce

The type of follicle that has a single layer of cuboidal cells surrounding the "egg cell" is a

primary follicle

Which ovarian follicle has simple cuboidal cells surrounding the oocyte and is first stimulated by FSH?

primary follicle

The oogenic cells that begin the first meiotic division are called

primary oocyte

The type of spermatogenic cell that continues into prophase I is the

primary spermatocyte

What hormone causes the uterine lining to thicken so it will better be able to support a developing embryo?

progesterone

The hormone which stimulates the mammary glands to produce milk is

prolactin

the phase of the uterine cycle associated with rebuilding the endometrial lining is the

proliferative phase

The male sex organ that secretes a milky fluid containing citrate to nourish male gametes and fibinolysin to liquefy semen after ejaculation

prostate gland

The male structure that houses the testes

scrotum

The "egg cell" that is released is actually a

secondary oocyte

The actual egg that is ovulated is a

secondary oocyte

The actual gamete that is ovulated in females is the

secondary oocyte

The oogenic cells that are fertilized are called a

secondary oocyte

What type of egg cell is ovulated from the ovary?

secondary oocyte

The male sex organ that secretes a fructose containing alkaline fluid to nourish male gametes and neutralize vaginal secretions

seminal vesicles

Spermatogenesis occurs within the

seminiferous tubules

Spermatogenic cells that result from spermiogenesis are

sperm

The mature male gametes are called

sperm

Formation of functional sperm with a flagellum from the spermatid is called

spermiogenesis

Lactation refers to

the production of milk by the mammary glands

Fertilization of the egg cell by a sperm would occur in the

uterine tube

Sterilization of a man with a vasectomy involves severing the

vas deferens

The ______ runs upward as part of the spermatic cord from the epididymis through the inguinal canal into the pelvic cavity

vas deferens

The duct that connects the epididymis to the ejaculatory duct is the

vas deferens

The spermatic cord is formed from blood vessels, nerve fibers, and the

vas deferens

The joining of the male pronucleus and female pronucleus in the fertilized egg results in the development of the ____, the first cell of the new individual

zygote

The pituitary hormone that stimulates susentacular cells to form ABP is

FSH (Follicle Stimulating Hormone)

The type of follicle that ruptures and releases an "egg cell" is a

Graafian follicle

What happens to semen when it is first ejaculated?

It congeals into a sticky mess

The hormone responsible for development of testosterone secreting cells is

LH (Luteinizing Hormone)

The structures in the testes that produce testosterone are

Leydig cells

The meiotic phase resulting in primary spermatocytes

NOT MEIOSIS

The meiotic phase resulting in spermatogonia

NOT MEIOSIS

What process allows for the erectile tissue to fill with blood?

Parasympathetic activity relaxes penile arterioles

Simple dominant-recessive inheritance can be analyzed for the possible gene combinations with a

Punnett square

How many pairs of homologous chromosomes do humans have?

23 pairs

A man and a woman are heterozygous for sickle cell trait. What is the probability of their offspring having sickle cell anemia?

25%

A man is heterozygous blood type A and a woman is heterozygous blood type B. What is the probablity of their offspring having blood type AB?

25%

Development of a full term fetus from a fertilized egg generally occurs by the

38th week

If an individual with that has a dominant and a recessive allele mates with an individual with two recessive alleles, what percentage of their offspring would you expect to have the dominant trait?

50%

If an individual with that has a dominant and a recessive allele mates with an individual with a dominant and a recessive allele, what percentage of their offspring would you expect to have the dominant trait?

75%

The embryonic period lasts until the end of the

8th week

The fetal period starts after that

8th week

The main internal organs are established by the

8th week

What is an example of codominance

AB blood type

Which procedure uses fetal cells sloughed off into the fluid surrounding the fetus to determine if there are genetic problems?

Amniocentesis

A quick assessment of neonate health is the

Apgar score

The _____ is involved in maturation of sperm by which sperm acquire motility

epididymis

The _____ is the sotorage site of sperm

epididymis

The duct that passes through the ureogenital diaphragm is the

membranous urethra

____ refers to a young woman's first menstrual period

menarche

Cessation of a women's menstrual cycle is called

menopause

The ___ phase of the uterine cycle occurs when the endometrium degenerates and sheds

menstrual

Phase in the uterine cycle resulting from a decrease in female sex hormones is the

menstrual phase

The primary germ layer that develops into the muscle tissue

mesoderm

During what phase of mitosis do the chromosomes line up in the middle line?

metaphase

The elevation of adipose tissue that cushions the pubic symphysis is the

mons pubis

The name of the cell mass produced by cleavage of the zygote

morula

The projection of the breasts is the _____ and this projection is surrounded by a circular pigmented _____ that contains many sebaceous glands

nipple, areola

Which of the following explains Kleinfelter syndrome?

nondisjunction of the sex chromosomes

Which of the following explains Turner syndrome?

nondisjunction of the sex chromosomes

The primary female sex organ of the reproductive system produces gametes called

oocyte

Females are incapable of sexual reproduction through their entire lifespan because all of the ___ have differentiated into ___ which are arrested into meiosis

oogenia, primary oocytes

During what phase of the female sexual response does the uterus contract rhythmically and the woman may ejaculate

orgasm

Pleasurable feelings occurring during and after expulsion of semen is called

orgasm

Where are the ovarian follicles found in the ovary

ovarian cortex

The corpus luteum is formed after

ovulation

The rupture of an ovarian follicle and release of the egg cell is called

ovulation

A man is homozygous blood type B and a woman is homozygous blood type O. What is the probablity of their offspring having blood type O?

0%

A man has sickle cell anemia and a woman has normal hemoglobin. What is the probability of their offspring having sickle cell trait?

100%

Implantation in the uterus begins by the ____ after fertilization

1st week

The cleavage period lasts until the end of the

1st week

The type of follicle that ovulates a secondary oocyte is the

Graafian follicle

What is aneuploidy?

Individuals having one extra or one less chromosome

The ______ secrete testosterone and other androgens

Interstitial cells

In which pattern of genetic expression would the expression of a trait depend on several genes at different locations?

Polygenic inheritance

Which of the following can be used to predict the phenotype of offspring?

Punnett square

The hormone which promotes the return of the uterus to pre-pregnant size

oxytocin

Taller than average females

Triple X syndrome

An individual with Turner syndrome would only have one copy of which chromosome?

X chromosome

Results from nondisjunction in father's sperm during the second meiotic division

XYY condition

What chromosome determines the gender of the individual

Y chromosome

Which chromosome determines the gender of an individual

Y chromosome

An allele that masks the phenotype of other alleles for the same trait is said to be

dominant

Having 3 copies of chromosome 21 causes what genetic condition?

down syndrome

Which fetal structure develops into the ligamentum arteriosum after birth?

ductus arteriosus

Which structure shunts blood from the pulmonary artery to the aorta?

ductus arterosus

Which structure shunts the blood from the liver?

ductus venosus

The nervous system is derived from the

ectoderm

Forceful expulsion of seminal fluid from the urethra is called

ejaculation

The _____ is a short tube that connects the vas deferens to the urethra

ejaculatory duct

The _____ is a uterine layer consisting of simple columnar epithelium and glands

endometrium

The layer that changes during the menstrual cycle is the

endometrium

Surgical procedure often used to prevent undue tearing of the perineal region

episiotomy

The ovaries produce the hormones ____ and ____

estrogen, progesterone

The ____ urethral sphincter of the male reflexively relaxes to allow ejaculation

external

An ovulated secondary oocyte is captured by fingerlike projections called

fimbriae

Stimulation of ovarian follicles to enlarge and secrete estrogen is due to

follicle stimulating hormone

The hormone androgen binding protein is secreted when sustentacular cells are stimulated by ___ from the pituitary gland

follicle stimulating hormone

The structure that produces both hormones and egg cells is the ovarian

follicles

The ____ hase of the uterine cycle refers to the thickening of the endometrium

follicular

What term refers to the degeneration of ovarian follicles in the ovary

follicular atresia

The phase of the ovarian cycle that occurs prior to ovulation is the

follicular phase

Which structure connects the right atrium to the left atrium to bypass the pulmonary circulation during fetal development?

foramen ovale

The ____ is removed in a circumcised male

foreskin (prepuce)

The hormone which promotes the return of the uterus to the pre-pregnant size

oxytocin

WHich particular genes an individual has is their

genotype

The ____ glands release mucus during sexual arousal and provide lubrication to facilitate vaginal intercourse

greater vestibular

The ____ is homologous to the bulbourethral gland

greater vestibular gland

What does it mean to be homozygous

having the same alleles for the trait

An individual that has two different alleles at a locus would be considered _____ for that trait

heterozygous

An individual who is a carrier for a genetic condition, but does not have the condition must have which genotype?

heterozygous

An individual that has the same alleles at a locus would be considered ____ for that trait

homozygous

When does the second meiotic division of the secondary oocyte occur?

just after penetration by a sperm

When during the female reproductive cycle would you expect to find a surge in the concentration of luteinizing hormone?

just before ovulation

Which test can be done to examine the number and structure of chromosomes that an individual has?

karyotype

The ___ is homologous to the scrotum

labia majora

The ____ are skin folds covered by pubic hair and containing an abundance of adipose tissue, sebaceous glands, and apocrine sweat glands

labia majora

The ____ are hair free skin folds that contain many sebaceous glands

labia minora

The ____ is homologous to the penile (spongy) urethra

labia minora

The birth process forcing the fetus through the birth canal is known as

labor

The production and ejection of milk from the mammary glands in the breast is called

lactation

Milk is expressed through many ____ that penetrate the surface of the nipple

lactiferous ducts

Genes that can be found on the same chromosome are considered to be

linked

What term refers to the location of a gene on the chromosome?

loci

The phase of the ovarian cycle that ebgins after ovulation is the

luteal phase

The phase of the ovarian cycle that varies the least is the:

luteal phase

Ovulation tests detect the relative level of the hormone ____ in urine

luteinizing hormone

The hormone responsible for development of testosterone secreting cells is

luteinizing hormone

The pituitary gland secretes ____ that stimulates the interstitial cells

luteinizing hormone

The trigger for ovulation is a relative surge in the level of

luteinizing hormone

Genes are the X chromosomes are expressed in

males and females

The breast contains adipose tissue and a modified sweat gland called a ____ gland

mammary

The process of forming gametes, either sperm cells or egg cells, involes the cell division called

meiosis

The type of follicle that is quiescent and waiting for a signal to begin further development is a

primordial follicle

The hormone which maintains the endometrium

progesterone

The follicular cells of the developing ovarian follicles secrete estrogen during the ___ phase of the ovarian cycle

proliferative

DUring which phase of meoisis does crossing over occur?

prophase I

ABout 20% of the volume of semen is produced by the

prostate gland

Urination may be difficult in older men due to hyperplasia of the

prostate gland

Urinary retention may occur in males during to benign prostatic hyperplasia (BPH) constricting the ____ urethra

prostatic

The duct that passes through the prostate gland is the

prostatic urethra

The male urethra is subdivided into the ______ urethra, _______ urethra, and ______ urethra

prostatic, membranous, and penile

The cells that develop fingerlike extensions into the endometrium

trophoblast

The ____ is a capsule of fibrous connective tissue covering the ovaries

tunica albuginea

The fibrous connective tissue layer that subdivides the testes into lobules is the

tunica albuginea

Fraternal twins result from

two eggs fertilized by two sperm

Which structure brings blood to the fetus from the placenta?

umbilical vein

Which structure contains blood with the highest oxygen content?

umbilical vein

Fertilization of a secondary oocyte occurs in the

uterine tube

The perstaltic contractions and cilia of the ____ help propel the egg cell toward the pear shaped muscular organ

uterine tube

Implantation and development of the offspring occurs in the

uterus

What is the name of the structure that contains glands to secrete mucus and moisten and lubricate tissues of the female reproductive tract

uterus

Female sex organ that receives the erect penis during sexual intercourse

vagina

The sperm travel along the ____ by peristaltic contractions during emission

vas deferens

Semen contains secretions from the following structures EXCEPT the

vestibular glands

The external female genitalia is called the

vulva

The first source of blood cells in the embryo

yolk sac

What is the term for the new individual after two pronuclei fuse?

zygote