Question 1

During fertilization, sperm bind to specific receptor sites on the surface of the

Accepted Answer

A)  zona pellucida 
B)  corona radiata 
C)  plasma membrane of the ovum 
D)  polar body 
E)  oviduct 
A)  zona pellucida 
B)  corona radiata 
C)  plasma membrane of the ovum 
D)  polar body 
E)  oviduct

Question 2

The third stage of labor

Accepted Answer

A)  involves dilation of the cervix to 10 cm 
B)  refers to the actual birth of the baby 
C)  occurs when the entire uterine contents shift downward and the fetus' head is positioned against the cervix 
D)  involves delivery of the placenta 
E)  is characterized by rupture of the membranes surrounding the amniotic sac 
A)  involves dilation of the cervix to 10 cm 
B)  refers to the actual birth of the baby 
C)  occurs when the entire uterine contents shift downward and the fetus' head is positioned against the cervix 
D)  involves delivery of the placenta 
E)  is characterized by rupture of the membranes surrounding the amniotic sac

Question 3

Vasectomy invariably results in a decrease in testosterone secretion.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following factors contributes to follicular development and estrogen secretion?

Accepted Answer

A)  FSH 
B)  LH 
C)  estrogen. 
D)  all of these 
E)  FSH and LH 
A)  FSH 
B)  LH 
C)  estrogen. 
D)  all of these 
E)  FSH and LH

Question 5

Oxytocin is

Accepted Answer

A)  an extremely potent uterine muscle stimulant 
B)  involved in a positive feedback cycle during parturition 
C)  produced in the hypothalamus 
D)  an extremely potent uterine muscle stimulant and involved in a positive feedback cycle during parturition 
E)  all of these 
A)  an extremely potent uterine muscle stimulant 
B)  involved in a positive feedback cycle during parturition 
C)  produced in the hypothalamus 
D)  an extremely potent uterine muscle stimulant and involved in a positive feedback cycle during parturition 
E)  all of these

Question 6

According to the leading proposal, parturition is initiated by

Accepted Answer

A)  parasympathetic stimulation 
B)  an increase in uterine responsiveness to oxytocin as a result of an increased concentration of myometrial oxytocin receptors 
C)  a drop in oxytocin secretion 
D)  a negative-feedback loop established between progesterone and oxytocin 
E)  a rise in estrogen secretion 
A)  parasympathetic stimulation 
B)  an increase in uterine responsiveness to oxytocin as a result of an increased concentration of myometrial oxytocin receptors 
C)  a drop in oxytocin secretion 
D)  a negative-feedback loop established between progesterone and oxytocin 
E)  a rise in estrogen secretion

Question 7

Secondary sexual characteristics refer to the external characteristics not directly involved in reproduction that distinguish males and females.

Accepted Answer

A) True 
 B)False

Question 8

The corpus luteum develops from old follicular cells.

Accepted Answer

A) True 
 B)False

Question 9

Oogonia continually multiply to replenish the ovarian supply of gamete precursor cells.

Accepted Answer

A) True 
 B)False

Question 10

Implantation normally occurs within 24 hours after fertilization.

Accepted Answer

A) True 
 B)False

Question 11

Which ovarian hormone is secreted during the follicular phase of the ovarian cycle?

Accepted Answer

A)  FSH 
B)  estrogen 
C)  progesterone 
D)  LH 
E)  GnRH 
A)  FSH 
B)  estrogen 
C)  progesterone 
D)  LH 
E)  GnRH

Question 12

GnRH

Accepted Answer

A)  stimulates both FSH and LH secretion 
B)  is inhibited by testosterone 
C)  has low-level activity during the prepubertal period 
D)  both stimulates FSH and LH secretion and is inhibited by testosterone 
E)  all of these 
A)  stimulates both FSH and LH secretion 
B)  is inhibited by testosterone 
C)  has low-level activity during the prepubertal period 
D)  both stimulates FSH and LH secretion and is inhibited by testosterone 
E)  all of these

Question 13

One primary oocyte containing 46 chromosomes yields one ovum containing 46 chromosomes.

Accepted Answer

A) True 
 B)False

Question 14

Orgasm is very similar in males and females with the exception of no ejaculation in females.

Accepted Answer

A) True 
 B)False

Question 15

Implantation

Accepted Answer

A)  is accomplished as the trophoblastic cells break down the myometrium tissue 
B)  occurs during the secretory, or progestational, phase of the menstrual cycle 
C)  occurs within 24 hours after ovulation 
D)  is accomplished as the trophoblastic cells break down the myometrium tissue, and during the secretory, or progestational, phase of the menstrual cycle 
E)  all of these 
A)  is accomplished as the trophoblastic cells break down the myometrium tissue 
B)  occurs during the secretory, or progestational, phase of the menstrual cycle 
C)  occurs within 24 hours after ovulation 
D)  is accomplished as the trophoblastic cells break down the myometrium tissue, and during the secretory, or progestational, phase of the menstrual cycle 
E)  all of these

Question 16

The seminal vesicles store sperm prior to ejaculation.

Accepted Answer

A) True 
 B)False

Question 17

Which statement 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. 
E)  During oogenesis, there is unequal distribution of cytoplasm resulting in the production of polar bodies that disintegrate. 
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. 
E)  During oogenesis, there is unequal distribution of cytoplasm resulting in the production of polar bodies that disintegrate.

Question 18

The Sertoli cells provide nourishment for the developing sperm cells.

Accepted Answer

A) True 
 B)False

Question 19

Select the structure with the diploid chromosome number.

Accepted Answer

A)  primary spermatocyte 
B)  secondary oocyte 
C)  secondary spermatocyte 
D)  spermatid 
E)  spermatozoan 
A)  primary spermatocyte 
B)  secondary oocyte 
C)  secondary spermatocyte 
D)  spermatid 
E)  spermatozoan

Question 20

The trophoblast is

Accepted Answer

A)  destined to become the fetus 
B)  responsible for accomplishing implantation 
C)  destined to become the fetal portion of the placenta 
D)  destined to become the fetus and responsible for accomplishing implantation 
E)  responsible for accomplishing implantation and destined to become the fetal portion of the placenta 
A)  destined to become the fetus 
B)  responsible for accomplishing implantation 
C)  destined to become the fetal portion of the placenta 
D)  destined to become the fetus and responsible for accomplishing implantation 
E)  responsible for accomplishing implantation and destined to become the fetal portion of the placenta

Exam 20: A--The Reproductive System

During fertilization, sperm bind to specific receptor sites on the surface of the

The third stage of labor

Vasectomy invariably results in a decrease in testosterone secretion.

Which of the following factors contributes to follicular development and estrogen secretion?

Oxytocin is

According to the leading proposal, parturition is initiated by

Secondary sexual characteristics refer to the external characteristics not directly involved in reproduction that distinguish males and females.

The corpus luteum develops from old follicular cells.

Oogonia continually multiply to replenish the ovarian supply of gamete precursor cells.

Implantation normally occurs within 24 hours after fertilization.

Which ovarian hormone is secreted during the follicular phase of the ovarian cycle?

GnRH

One primary oocyte containing 46 chromosomes yields one ovum containing 46 chromosomes.

Orgasm is very similar in males and females with the exception of no ejaculation in females.

Implantation

The seminal vesicles store sperm prior to ejaculation.

Which statement is incorrect?

The Sertoli cells provide nourishment for the developing sperm cells.

Select the structure with the diploid chromosome number.

The trophoblast is

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

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