Deck 34: Male Reproductive System

Question 1

Each epididymis consists of a single,tightly coiled tube enclosed in a fibrous casing.

Answer 1

True

Question 2

Seminal vesicles convey sperm to the outside of the body.

Answer 2

False

Question 3

Androgenic hormones are masculinizing hormones.

Answer 3

True

Question 4

The penis is classified as an accessory organ of reproduction in the male.

Question 5

Testosterone is responsible for producing secondary sex characteristics.

Question 6

Capacitation of sperm occurs as they pass through the genital ducts.

Question 7

Cells of Leydig produce both sperm and testosterone.

Question 8

The anatomical structure of an epididymis consists of a head,neck,body,and tail.

Question 9

The bulbourethral glands are a supporting structure of the male reproductive system.

Question 10

The prostate and the testes are essential organs of reproduction in males.

Question 11

Sperm consist of a head,middle piece,and tail.

Question 12

Testosterone has a marked inhibiting effect on protein anabolism.

Question 13

A high blood concentration of testosterone stimulates the anterior pituitary to secrete both FSH and LH.

Question 14

The perineum in the male extends from the symphysis pubis anteriorly and to the coccyx posteriorly.

Question 15

In both sexes,the essential organs of reproduction are the testes.

Question 16

In a spermatozoon,a highly compact package of genetic chromatin material is located in the cylindrical middle piece.

Question 17

The acrosomal cap of the sperm contains a hydrolytic enzyme necessary for penetrating the egg.

Question 18

The sustentacular cells produce and secrete testosterone.

Question 19

The left testis is generally located about 1 cm lower in the scrotal sac than the right.

Question 20

The major function of the reproductive system is propagation of the species.

Question 21

The seminal vesicle secretes about 35% of the semen volume.

Question 22

The prostate gland is a supportive structure of the male reproductive system.

Question 23

In a warm environment,the scrotum elevates and becomes heavily wrinkled,effectively pulling the testes upward toward the body wall.

Question 24

Erection is the result of a sympathetic reflex activity.

Question 25

The muscular layers of the vas deferens help in propelling sperm through the duct system.

Question 26

The corpus spongiosum of the penis contains the male urethra.

Question 27

The greatest percentage of seminal fluid volume is secreted in the seminal vesicles.

Question 28

Secretions from the seminal vesicles contribute about 60% of the seminal fluid volume.

Question 29

Sperm may remain in the vas deferens for over 3 weeks with no loss of fertility.

Question 30

One function of an epididymis is to serve as a maturation area for sperm.

Question 31

Emission and ejaculation refer to the same physiological process.

Question 32

Prostate cancer is the most common cancer in American men.

Question 33

The fructose found in the liquid secreted by the seminal vesicles serves as an energy source for sperm motility after ejaculation.

Question 34

The acidity of the female vaginal tract can increase sperm motility.

Question 35

An enlargement of the prostate may cause urinary retention.

Question 36

A vasectomy involves the severing of the epididymis.

Question 37

The vas deferens acts as a storage area and a conduction pathway for sperm.

Question 38

Filling of the erectile tissue in the penis is necessary for coitus to occur.

Question 39

A vasectomy involves severing the ejaculatory ducts.

Question 40

The dartos and cremaster muscles contract in response to both cold temperatures and sexual arousal.

Question 41

A line drawn between the ischial tuberosities divides the perineum into the larger anal triangle and the smaller urogenital triangle.

Question 42

Sperm carry DNA in a structure called the acrosome.

Question 43

Leydig cells and Sertoli cells are different names for the same structure.

Question 44

The testicular blood vessels pass through the spermatic cord.

Question 45

The epididymis and seminiferous tubules are about the same length.

Question 46

The tight junctions of the blood-testes barrier prevent the autoimmune reaction against sperm cells.

Question 47

After about 6 weeks,any unused sperm are broken down by the epididymis.

Question 48

The ampulla of the vas deferens joins with the duct from the seminal vesicle to form the ejaculatory duct.

Question 49

Sperm cells are functionally incomplete at the time of ejaculation.

Question 50

The lateral boundaries of the perineum are the ischial tuberosities.

Question 51

The prostate gland produces about 30% of the seminal fluid volume.

Question 52

The perineum is a supporting structure of the male reproductive system.

Question 53

The urogenital triangle of the perineum contains the penis and scrotum.

Question 54

Millions of sperm are required for a man to be considered fertile.

Question 55

The perineum is an accessory organ of the male reproductive system.

Question 56

Most cases of cryptorchidism can be successfully treated with the use of estrogen.

Question 57

Emission is always followed by ejaculation.

Question 58

Each testis is divided into 50 or 60 cone-shaped lobules.

Question 59

The citrate found in prostatic fluid is a nutrient for sperm cells.

Question 60

The anterior pituitary gland and the testes is one of the few positive feedback mechanisms in the body.

Question 61

The rete testis are a group of highly branched blood vessels that serve the interior of the testes.

Question 62

Sertoli cells form tight junctions that divide the wall of the seminiferous tubule into four compartments.

Question 63

A vasectomy is usually performed by making a small incision at the base of the penis.

Question 64

A negative feedback mechanism exists between the testes and the hypothalamus in the regulation of testosterone.

Question 65

The ejaculatory ducts pass through the prostate and terminate in the ureter.

Question 66

A vasectomy is done to inhibit sperm production,which causes sterility.

Question 67

The cylindrical middle piece of a sperm contains mitochondria.

Question 68

The penis is composed of four cylindrical masses of erectile tissue-two corpus cavernosa and two corpus spongiosa.

Question 69

Testosterone promotes bone growth and closure of the epiphyses.

Question 70

The PSA test is used to detect testicular cancer before a lump can be felt.

Question 71

The ampulla is a portion of the vas deferens.

Question 72

The cylindrical middle piece of a sperm provides the sperm with energy for locomotion.

Question 73

Testes are small ovoid glands that measure about 4 to 5 cm in length.

Question 74

The tail of a sperm appears to be a typical flagella.

Question 75

The wall of the vas deferens has two layers of muscle.

Question 76

The testes have two functions: spermatogenesis and the secretion of hormones.

Question 77

The epididymis is an extension of the tail of the vas deferens.

Question 78

The ampulla is a portion of the epididymis.

Question 79

The PSA test is used in the detection of prostate cancer.

Question 80

Testosterone plays a part in fluid and electrolyte balance.It stimulates the kidneys to excrete sodium.