A&PII Chp. 26

Which of the following interactions is incorrect regarding the reproductive system?

A vasectomy is an effective way of preventing ovulation.

The reproductive system does not include

None of the answers is correct.

When spermatogonia divide, the two daughter cells produced are a spermatogonium and a

SPERMATOCYTE

Spermatids mature into spermatozoa by the process of

SPERMIOGENESIS

Define spermatogenesis. (Module 26.3A)

Spermatogenesis is the production of sperm using mitosis, meiosis, and spermiogenesis.

How do recently released secondary oocytes reach the uterine tube? (Module 26.11A)

ciliary fluid currents

The paired erectile bodies in the penis are the

corpora cavernosa.

The erectile tissue that surrounds the urethra is the

corpus spongiosum

A male bodybuilder starts taking injections of testosterone (an anabolic steroid) on a daily basis. After 3 weeks, which of the following would you not expect to observe?

decreased levels of DHT

The organ that carries sperm from the epididymis to the urethra is the

ductus deferens.

The ________ is the inner lining of the uterus.

endometrium

Spermatozoa functionally mature within the

epididymis

Identify the sources of hormones that control male sexual and reproductive functions. (Module 26.7B)

hypothalamus, anterior lobe of the pituitary gland, and the testes

Where in the male reproductive system would you expect to find the most mature spermatozoa?

in the ductus deferens and ejaculatory duct

The portion of the uterine tube that ends in fingerlike fimbriae is the

infundibulum

The primary role of FSH in males is to

initiate sperm production in the testes.

Testosterone is secreted by the

interstitial cells

The production of milk is called

lactation

All of the following are true of the vagina except that it

loses a portion of its lining during menses.

________ are the organs of milk production.

mammary glands

The onset of the first uterine cycle is called

menarche

Functions of the accessory glands of the male reproductive system include all of the following except

producing spermatozoa.

Menstruation is triggered by a drop in the levels of

progesterone

The principal hormone secreted by the corpus luteum is

progesterone

The organ that surrounds the urethra and secretes an antibiotic protein is the

prostate gland.

The cells that are formed during spermatogenesis by the first meiosis are called

secondary spermatocytes.

Sperm production occurs in the

seminiferous tubules

The process of spermiogenesis produces

spermatozoa

The penile urethra passes through the corpus

spongiosum

The male gonad is called a(n)

testis

On which of the following days would the level of LH be highest in a female?

the day before ovulation

During the proliferative phase of the uterine cycle,

the functional zone of the endometrium is restored.

During menses,

the old functional layer is sloughed off

Name the three columns of erectile tissue in the penis. (Module 26.6A)

CORPUS SPONGIOSUM AND THE PAIRED CORPORA CAVERNOSA

The pituitary hormone that stimulates the interstitial cells to secrete testosterone is

LH

Describe the process of spermiation. (Module 26.4B)

During spermiation, a sperm loses its attachment to the nurse cell and enters the lumen of the seminiferous tubule.

What structure releases the secondary oocyte during ovulation?

Graafian follicle

Which of the following statements about the uterine cycle is false?

IT CONTINUES DURING PREGNANCY

The primary follicle develops from the

primordial follicle.

What are the functions of the gonads? (Module 26.1A)

produce and store gametes

The vagina is

A MUSCULAR TUBE EXTENDING BETWEEN THE UTERUS AND THE EXTERNAL GENITALIA

List the structures of a sperm. (Module 26.3C)

ACROSOME, HEAD, NECK, MIDDLE PIECE, AND TAIL

Which structure in the female reproductive system is not lined with cilia?

broad ligament

The small paired structures at the base of the penis that secrete a thick, alkaline mucus are the

bulbourethral glands.

The organ that monitors and adjusts the composition of tubular fluid, recycles damaged spermatozoa, and is the site of sperm maturation is the

epididymis

In a spermatozoan, activity in the ________ provides energy required to move the tail.

mitochondria

What is the function of gonads?

produce gametes and produce hormones

Know the location of the uterus

...

How long does each menstruation typically last? (Module 26.12B)

1-7 days

How many sperm will eventually be produced from each primary spermatocyte? (Module 26.3B)

4

What is the proper arrangement of the four structures listed below into the order in which sperm pass from the testis to the urethral meatus?1. ductus deferens 2. urethra 3. ejaculatory duct 4. Epididymis

4,1,3,2

Which of the following is true immediately after a spermatogonium completes cell division?

The primary spermatocyte is directed toward the lumen of the seminiferous tubule.

The male reproductive system is most closely associated with which of the following systems?

URINARY

In a(n) ________, each ductus deferens is cut, and either a segment is removed and the ends tied (or cauterized) or silicone plugs are inserted.

VASECTOMY

Define vasectomy. (Module 26.16C)

Vasectomy is the surgical sterilization of males by cutting the ductus deferens.

The ________ are fingerlike projections that capture the freshly ovulated ovum.

fimbrae

A rise in the blood levels of follicle-stimulating hormone at the beginning of the ovarian cycle is responsible for

follicle maturation

Secondary spermatocytes divide to produce ________ spermatids, each having ________ chromosomes.

four; 23

The ________ is the part of the sperm that contains the DNA.

head

The surge in luteinizing hormone that occurs during the middle of the ovarian cycle triggers

ovulation

Identify the functions of the vagina. (Module 26.13B)

passageway for elimination of menstrual fluids, receives the penis during sexual intercourse, and forms the inferior portion of the birth canal

The organ that delivers semen into the female reproductive tract is the

penis

Name the structures of the male external genitalia. (Module 26.1B)

penis, urethra, and scrotum

The ________ is the outer lining of the uterus.

perimetrium

Sperm are moved along the ductus deferens by

peristaltic contractions

The main organs of the female reproductive tract include all of the following except the

urinary bladder.

Fertilization of an ovum usually takes place in the

uterine tube.

The organ that provides mechanical protection and nutritional support for the developing embryo is the

uterus

What are the functions of the bulbo-urethral glands? (Module 26.5B)

Bulbo-urethral glands produce mucus that neutralizes acid in the urethra and lubricates the penis.

________ is defined as an inability to achieve or maintain an erection.

IMPOTENCE

Name the structures of the male internal genitalia. (Module 26.1C)

ductus deferens, seminal gland, prostate, bulbo-urethral gland, epididymis, testis

Follicle-stimulating hormone

stimulates spermatogenesis and stimulates maturation of primordial follicles in the ovary.

What is the function of the ductus deferens? (Module 26.5A)

stores sperm and transports sperm to the ejaculatory duct