Question 1

The Leydig cells secrete testosterone in response to stimulation by luteinizing hormone.

Accepted Answer

A) True 
 B)False

Question 2

Estriol is the main estrogen product secreted from the ovaries.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following is not a component of the overall ejaculatory response?

Accepted Answer

A)  Arterioles supplying the penis dilate, causing the erectile tissue to fill with blood and the penis to become erect. 
B)  The smooth muscles of the prostate, reproductive ducts, and seminal vesicles contract, resulting in emission. 
C)  The sphincter at the neck of the bladder tightly closes. 
D)  Semen is expelled from the penis by a series of rapid contractions of skeletal muscles at the base of the penis. 
E)  Rhythmical contractions and accompanying systemic responses are associated with a pleasant sensation known as orgasm. 
A)  Arterioles supplying the penis dilate, causing the erectile tissue to fill with blood and the penis to become erect. 
B)  The smooth muscles of the prostate, reproductive ducts, and seminal vesicles contract, resulting in emission. 
C)  The sphincter at the neck of the bladder tightly closes. 
D)  Semen is expelled from the penis by a series of rapid contractions of skeletal muscles at the base of the penis. 
E)  Rhythmical contractions and accompanying systemic responses are associated with a pleasant sensation known as orgasm.

Question 4

The fimbriae and cilia usually guide the secondary oocyte into the oviduct following ovulation.

Accepted Answer

A) True 
 B)False

Question 5

The plasma concentration of estrogen reaches a higher level during the follicular phase than during the luteal phase, despite the fact that the follicle and corpus luteum both secrete estrogen.

Accepted Answer

A) True 
 B)False

Question 6

The oral contraceptive inhibits follicle development.

Accepted Answer

A) True 
 B)False

Question 7

In the blastocyst

Accepted Answer

A)  the trophoblast is destined to become the fetus 
B)  the trophoblast is destined to become the fetal portion of the placenta 
C)  the trophoblast is destined to become the inner cell mass 
D)  the blastocoele serves the functions of the digestive system, lungs, and kidneys for the fetus 
E)  the blastocoele is destined to become the fetus 
A)  the trophoblast is destined to become the fetus 
B)  the trophoblast is destined to become the fetal portion of the placenta 
C)  the trophoblast is destined to become the inner cell mass 
D)  the blastocoele serves the functions of the digestive system, lungs, and kidneys for the fetus 
E)  the blastocoele is destined to become the fetus

Question 8

Complete each of the following statments.
The reproductive tract develops from the ____________________ ducts in males and from the ____________________ ducts in females.

Accepted Answer

Wolffian,

Question 9

The scrotal location of the testes provides the cooler environment essential for spermatogenesis.

Accepted Answer

A) True 
 B)False

Question 10

Which statement about testosterone is incorrect?

Accepted Answer

A)  Its secretion is stimulated by LH. 
B)  It is secreted from the seminiferous tubules. 
C)  It stimulates spermatogenesis. 
D)  It promotes closure of the epiphyseal plate. 
E)  It stimulates protein synthesis and promotes bone growth. 
A)  Its secretion is stimulated by LH. 
B)  It is secreted from the seminiferous tubules. 
C)  It stimulates spermatogenesis. 
D)  It promotes closure of the epiphyseal plate. 
E)  It stimulates protein synthesis and promotes bone growth.

Question 11

Erection

Accepted Answer

A)  involves dilation of the arterioles supplying the sponge-like vascular spaces of the penis 
B)  results from cGMP production induced by nitric oxide 
C)  occurs when the seminiferous tubules of the penis become engorged with sperm 
D)  occurs in response to sympathetic nervous stimulation of the penis 
E)  involves dilation of the arterioles supplying the sponge-like vascular spaces of the penis, and results from cGMP production induced by nitric oxide 
A)  involves dilation of the arterioles supplying the sponge-like vascular spaces of the penis 
B)  results from cGMP production induced by nitric oxide 
C)  occurs when the seminiferous tubules of the penis become engorged with sperm 
D)  occurs in response to sympathetic nervous stimulation of the penis 
E)  involves dilation of the arterioles supplying the sponge-like vascular spaces of the penis, and results from cGMP production induced by nitric oxide

Question 12

Suckling induces

Accepted Answer

A)  milk secretion due to prolactin release 
B)  milk ejection due to oxytocin release 
C)  LH and FSH secretion 
D)  milk secretion due to prolactin release and ejection due to oxytocin release 
E)  all of these 
A)  milk secretion due to prolactin release 
B)  milk ejection due to oxytocin release 
C)  LH and FSH secretion 
D)  milk secretion due to prolactin release and ejection due to oxytocin release 
E)  all of these

Question 13

Spermatogenesis is directly controlled by

Accepted Answer

A)  LH 
B)  FSH 
C)  prostaglandins 
D)  LH and prostaglandins 
E)  FSH and prostaglandins 
A)  LH 
B)  FSH 
C)  prostaglandins 
D)  LH and prostaglandins 
E)  FSH and prostaglandins

Question 14

Which layer of the uterus is shed each month with menstruation?

Accepted Answer

A)  endometrium 
B)  myometrium 
C)  perimetrium 
D)  mucous 
E)  none of these 
A)  endometrium 
B)  myometrium 
C)  perimetrium 
D)  mucous 
E)  none of these

Question 15

Which statement is incorrect?

Accepted Answer

A)  The Y chromosome stimulates production of SRY protein by primitive gonadal cells. 
B)  Ovaries must be present for feminization of the reproductive tract and external genitalia to occur. 
C)  H-Y antigen directs differentiation of the primitive gonads into testes. 
D)  Secretion of testosterone and Müllerian inhibiting factor by the fetal testes induces development of the reproductive tract and external genitalia along male lines. 
E)  Early in development, embryos of both sexes have the same indifferent reproductive tissues capable of differentiating into either a male or female reproductive system depending respectively on the presence or absence of masculinizing factors. 
A)  The Y chromosome stimulates production of SRY protein by primitive gonadal cells. 
B)  Ovaries must be present for feminization of the reproductive tract and external genitalia to occur. 
C)  H-Y antigen directs differentiation of the primitive gonads into testes. 
D)  Secretion of testosterone and Müllerian inhibiting factor by the fetal testes induces development of the reproductive tract and external genitalia along male lines. 
E)  Early in development, embryos of both sexes have the same indifferent reproductive tissues capable of differentiating into either a male or female reproductive system depending respectively on the presence or absence of masculinizing factors.

Question 16

The glycogen stored in the endometrial glands is broken down by the trophoblast to provide nourishment during the early stages of the developing embryo.

Accepted Answer

A) True 
 B)False

Question 17

An average human ejaculate contains about ____ sperm.

Accepted Answer

A)  20-30 million 
B)  100-120 million 
C)  100-120 thousand 
D)  300-400 million 
E)  none of these 
A)  20-30 million 
B)  100-120 million 
C)  100-120 thousand 
D)  300-400 million 
E)  none of these

Question 18

During the secretory phase, the corpus luteum secretes ____ levels of estrogen and ____ levels of progesterone.

Accepted Answer

A)  high; high 
B)  high; low 
C)  low; high 
D)  low; low 
A)  high; high 
B)  high; low 
C)  low; high 
D)  low; low

Question 19

What hormone causes the endometrial glands to fill with glycogen and endometrial blood vessels to become more numerous?

Accepted Answer

A)  estrogen 
B)  progesterone 
C)  FSH 
D)  LH 
E)  chorionic gonadotropin 
A)  estrogen 
B)  progesterone 
C)  FSH 
D)  LH 
E)  chorionic gonadotropin

Question 20

Ovulation usually occurs 14 days following follicle development.

Accepted Answer

A) True 
 B)False

Exam 20: A--The Reproductive System

The Leydig cells secrete testosterone in response to stimulation by luteinizing hormone.

Estriol is the main estrogen product secreted from the ovaries.

Which of the following is not a component of the overall ejaculatory response?

The fimbriae and cilia usually guide the secondary oocyte into the oviduct following ovulation.

The plasma concentration of estrogen reaches a higher level during the follicular phase than during the luteal phase, despite the fact that the follicle and corpus luteum both secrete estrogen.

The oral contraceptive inhibits follicle development.

In the blastocyst

Complete each of the following statments. The reproductive tract develops from the ____________________ ducts in males and from the ____________________ ducts in females.

The scrotal location of the testes provides the cooler environment essential for spermatogenesis.

Which statement about testosterone is incorrect?

Erection

Suckling induces

Spermatogenesis is directly controlled by

Which layer of the uterus is shed each month with menstruation?

Which statement is incorrect?

The glycogen stored in the endometrial glands is broken down by the trophoblast to provide nourishment during the early stages of the developing embryo.

An average human ejaculate contains about ____ sperm.

During the secretory phase, the corpus luteum secretes ____ levels of estrogen and ____ levels of progesterone.

What hormone causes the endometrial glands to fill with glycogen and endometrial blood vessels to become more numerous?

Ovulation usually occurs 14 days following follicle development.

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

A--The Central Nervous System

B--The Central Nervous System

A--The Peripheral Nervous System: Afferent Division; Special Senses

B--The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

A--Muscle Physiology

B--Muscle Physiology

A--Cardiac Physiology

B--Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

A--The Respiratory System

B--The Respiratory System

A--The Urinary System

B--The Urinary System

A--Fluid and Acid-Base Balance

B--Fluid and Acid-Base Balance

A--The Digestive System

B--The Digestive System

Energy Balance and Temperature Regulation

A--Principles of Endocrinology: the Central Endocrine Glands

B--Principles of Endocrinology: the Central Endocrine Glands

A--The Peripheral Endocrine Glands

B--The Peripheral Endocrine Glands

B--The Reproductive System

Filters

Complete each of the following statments. The reproductive tract develops from the ducts in males and from the ducts in females.

During the secretory phase, the corpus luteum secretes levels of estrogen and levels of progesterone.