Question 1

Forty-four of the 46 chromosomes in a human body cell are ____________________.

Accepted Answer

The answer of Forty-four of the 46 chromosomes in a...

Question 2

Which statement concerning spermatogenesis and oogenesis is INCORRECT?

Accepted Answer

A)  One primary spermatocyte or one primary oocyte containing 46 chromosomes respectively yields two spermatozoa or two ova, each containing 23 chromosomes. 
B)  There is a continual supply of spermatogonia through mitotic activity. 
C)  The first meiotic division involved in oogenesis is completed just prior to ovulation. 
D)  It takes anywhere from about 11 to 50 years for the process of oogenesis to be completed.

Question 3

Indicate which description in the right column matches the item in the left column by using the answer code:
-colostrum

Accepted Answer

A) special milk produced during the first five days postpartum 
B) evacuated from the uterus as "afterbirth" 
C) super-rich endometrial tissue at the implantation site 
D) the two-cell layered trophoblastic tissue that forms the fetal portion of the placenta 
E) the intervening membrane between the developing oocyte and surrounding granulosa cells

Question 4

Which statement is correct for the seminal vesicles?

Accepted Answer

A)  They store sperm prior to ejaculation. 
B)  They supply fructose to be utilized by the sperm for energy. 
C)  They secrete FSH. 
D)  They play a primary role in lubricating the urethra.

Question 5

Indicate from what primitive reproductive tissue each structure in question differentiates by using the answer code (options may be used more than once or not at all):
-male reproductive tract

Accepted Answer

A) genital tubercle 
B) urethral folds 
C) genital swellings 
D) Wolffian ducts 
E) Müllerian ducts

Question 6

What does NOT initiate menstruation?

Accepted Answer

A)  a rapid increase in estrogen levels 
B)  a rapid drop in estrogen levels 
C)  a rapid drop in progesterone levels

Question 7

Testosterone is directly responsible for differentiating the external genitalia into the penis and scrotum.

Accepted Answer

A) True 
 B)False

Question 8

The reproductive tract includes a system of ducts plus ____________________,which secrete into these passageways.

Accepted Answer

The answer of The reproductive tract includes a system of...

Question 9

The genital swellings develop into the ____________________ in males and the ____________________ in females.

Accepted Answer

The answer of The genital swellings develop into the ____________________...

Question 10

Indicate which item best matches the description in each question by using the answer code (options may be used more than once or not at all). There is only one correct response for each.
-secretes prostaglandins into semen

Accepted Answer

A) erection 
B) acrosome 
C) Leydig cells 
D) seminal vesicles 
E) oviduct
F)uterus
G)inner cell mass
H)seminiferous tubules
I)midpiece of sperm
J)head of sperm
K)vagina
L)prostate gland
M)trophoblast
N)corpus luteum
O)epididymis
P)ovarian follicle
Q)ejaculation
R)tail of sperm
S)Sertoli cells
T)endometrium
U)placenta

Question 11

Failure of the testes to descend into the scrotal sac is known as cryptorchidism.

Accepted Answer

A) True 
 B)False

Question 12

Indicate the chromosomal composition of each of the stages of developing sperm by using the answer code (options may be used more than once or not at all):
-spermatid

Accepted Answer

A) contains a full set of 23 pairs of chromosomes 
B) contains a full set of 23 pairs of doubled chromosomes 
C) contains a half set of doubled chromosomes 
D) contains a set of 23 single unpaired chromosomes

Question 13

If fertilization does not occur,the corpus luteum has a life span of about two weeks.

Accepted Answer

A) True 
 B)False

Question 14

The human testis contains many Leydig cells (interstitial cells)at various stages of differentiation,some of which have only half the normal number of chromosomes.

Accepted Answer

A) True 
 B)False

Question 15

Indicate which item best matches the description in each question by using the answer code (options may be used more than once or not at all). There is only one correct response for each.
-secretes estrogen and progesterone during the last seven months of gestation

Accepted Answer

A) erection 
B) acrosome 
C) Leydig cells 
D) seminal vesicles 
E) oviduct
F)uterus
G)inner cell mass
H)seminiferous tubules
I)midpiece of sperm
J)head of sperm
K)vagina
L)prostate gland
M)trophoblast
N)corpus luteum
O)epididymis
P)ovarian follicle
Q)ejaculation
R)tail of sperm
S)Sertoli cells
T)endometrium
U)placenta

Question 16

Indicate from what primitive reproductive tissue each structure in question differentiates by using the answer code (options may be used more than once or not at all):
-penis

Accepted Answer

A) genital tubercle 
B) urethral folds 
C) genital swellings 
D) Wolffian ducts 
E) Müllerian ducts

Question 17

The seminal vesicles store sperm prior to ejaculation.

Accepted Answer

A) True 
 B)False

Question 18

Vasectomy invariably results in a decrease in testosterone secretion.

Accepted Answer

A) True 
 B)False

Question 19

Estriol is the main estrogen product secreted from the ovaries.

Accepted Answer

A) True 
 B)False

Question 20

Ovarian estrogen production decreases during climacteric.

Accepted Answer

A) True 
 B)False

Exam 17: The Reproductive System

Forty-four of the 46 chromosomes in a human body cell are ____________________.

Which statement concerning spermatogenesis and oogenesis is INCORRECT?

Indicate which description in the right column matches the item in the left column by using the answer code: -colostrum

Which statement is correct for the seminal vesicles?

Indicate from what primitive reproductive tissue each structure in question differentiates by using the answer code (options may be used more than once or not at all) : -male reproductive tract

What does NOT initiate menstruation?

Testosterone is directly responsible for differentiating the external genitalia into the penis and scrotum.

The reproductive tract includes a system of ducts plus ____________________,which secrete into these passageways.

The genital swellings develop into the in males and the in females.

Indicate which item best matches the description in each question by using the answer code (options may be used more than once or not at all) . There is only one correct response for each. -secretes prostaglandins into semen

Failure of the testes to descend into the scrotal sac is known as cryptorchidism.

Indicate the chromosomal composition of each of the stages of developing sperm by using the answer code (options may be used more than once or not at all) : -spermatid

If fertilization does not occur,the corpus luteum has a life span of about two weeks.

The human testis contains many Leydig cells (interstitial cells)at various stages of differentiation,some of which have only half the normal number of chromosomes.

Indicate which item best matches the description in each question by using the answer code (options may be used more than once or not at all) . There is only one correct response for each. -secretes estrogen and progesterone during the last seven months of gestation

Indicate from what primitive reproductive tissue each structure in question differentiates by using the answer code (options may be used more than once or not at all) : -penis

The seminal vesicles store sperm prior to ejaculation.

Vasectomy invariably results in a decrease in testosterone secretion.

Estriol is the main estrogen product secreted from the ovaries.

Ovarian estrogen production decreases during climacteric.