Unit 7 Reproductive System Lecture Test
A mature follicle releases an ovum in response to
a surge in luteinizing hormone
Spermatozoa functionally mature within the
epididymis
The proper arrangement of the four structures into the order in which sperm pass from the testis to the urethral meatus
epididymis --> ductus deferens --> ejaculatory duct --> urethra
______________ is the cause of most puberty-related changes in a female
estrogen
The uterine phase that develops because of a fall in progesterone levels is the
menses
The surge in luteinizing hormone that occurs during the middle of the ovarian cycle triggers
ovulation
Stretching of the cervix causes an increase in the blood levels of
oxytocin
The traits of an individual controlled by his or her genotype are his or her
phenotype
The function of gonads
produce gametes and produce hormones
During gestation, contraction of the myometrium is inhibited by ________, produced by the placenta.
progesterone
The organ that surrounds the urethra and secretes an antibiotic protein is the
prostate gland
Sperm production occurs in the
seminiferous tubules
The prostaglandins produced in the endometrium stimulate
smooth muscle contractions
When spermatogonia divide, the two daughter cells produced are a spermatogonium and a
spermatocyte
The process of spermiogenesis produces
spermatozoa
In a mature human spermatozoan,
the acrosome is next to the nucleus, and the head contains 23 chromosomes
The embryonic heart starts beating as blood begins to flow through chorionic vessels at approximately
week 3 of development
The extra-embryonic membrane that forms blood cells is the
yolk sac
The pituitary hormone that stimulates the interstitial cells to secrete testosterone is
LH
The various forms of any one gene are called
alleles
A space opens within the inner cell mass that will form the
amniotic cavity
Interstitial cells produce
androgens
The individual cells produced by cleavage are called
blastomeres
Contractions of the bulbospongiosus muscles result in
ejaculation
Contraction of the dartos muscle
elevates the scrotal sac
The fimbriae are
fingerlike projections that capture the freshly ovulated ovum
A person's original chromosomes and their component genes constitute that person's
genotype
The _______ is the part of the sperm that contains the DNA
head
Attachment to and penetration of the endometrium by the blastocyst is referred to as
implantation
The ____________ is an opening through which the spermatic cord passes
inguinal canal
The endometrium is the
inner lining of the uterus
After 3 days, a pre-embryo becomes a solid ball of cells known as a
morula
The mesoderm forms
muscle
The ectoderm forms
neural tissues
Ductus deferens is the
organ that carries sperm from the epididymis to the urethra
Order sperm produced in the seminiferous tubules pass through the following structures before being stored in the epididymis
straight ductules --> rete testis --> efferent ductules
The clitoris contains erectile tissue comparable to
the corpora cavernosa of the penis
During the proliferative phase of the uterine cycle,
the functional zone of the endometrium is restored
If an individual carries a pair of alleles that are the same,
the individual is homozygous for the trait
Fertilization of an ovum usually takes place in
the uterine tube
The structure that transports the ovum to the uterus is
the uterine tube
During gastrulation,
three germ layers are formed
