Question 1

Erectile dysfunction prevents ejaculation in most cases.

Accepted Answer

A) True 
 B)False  False

Question 2

The __________ is the gonad and the __________ is the gamete.

Accepted Answer

A)  testis;ovary 
B)  testis;semen 
C)  testis;sperm 
D)  sperm;semen 
E)  semen;sperm 
A)  testis;ovary 
B)  testis;semen 
C)  testis;sperm 
D)  sperm;semen 
E)  semen;sperm C

Question 3

In the process of spermiogenesis,__________ become __________.

Accepted Answer

A)  spermatocytes;spermatozoa 
B)  spermatozoa;spermatids 
C)  spermatogonia;spermatocytes 
D)  spermatocytes;spermatids 
E)  spermatids;spermatozoa 
A)  spermatocytes;spermatozoa 
B)  spermatozoa;spermatids 
C)  spermatogonia;spermatocytes 
D)  spermatocytes;spermatids 
E)  spermatids;spermatozoa E

Question 4

The haploid (n)result of meiosis I is called a __________.

Accepted Answer

A)  spermatogonium 
B)  secondary spermatocyte 
C)  primary spermatocyte 
D)  spermatid 
E)  sperm 
A)  spermatogonium 
B)  secondary spermatocyte 
C)  primary spermatocyte 
D)  spermatid 
E)  sperm

Question 5

Which of the following is the correct pathway of sperm cells from their formation to ejaculation?

Accepted Answer

A)  Seminiferous tubule,epididymis,rete testis,urethra,ejaculatory duct,ductus deferens 
B)  Seminiferous tubule,epididymis,rete testis,ejaculatory duct,ductus deferens,urethra 
C)  Seminiferous tubule,epididymis,rete testis,ductus deferens,ejaculatory duct,urethra 
D)  Seminiferous tubule,rete testis,epididymis,ductus deferens,ejaculatory duct,urethra 
E)  Seminiferous tubule,rete testis,epididymis,ejaculatory duct,urethra,ductus deferens 
A)  Seminiferous tubule,epididymis,rete testis,urethra,ejaculatory duct,ductus deferens 
B)  Seminiferous tubule,epididymis,rete testis,ejaculatory duct,ductus deferens,urethra 
C)  Seminiferous tubule,epididymis,rete testis,ductus deferens,ejaculatory duct,urethra 
D)  Seminiferous tubule,rete testis,epididymis,ductus deferens,ejaculatory duct,urethra 
E)  Seminiferous tubule,rete testis,epididymis,ejaculatory duct,urethra,ductus deferens

Question 6

Males produce sperm and females produce eggs.

Accepted Answer

A) True 
 B)False

Question 7

Spermiogenesis is the last stage of meiosis.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following is a secondary sex organ?

Accepted Answer

A)  Testis 
B)  Ovary 
C)  Vagina 
D)  Facial hair 
E)  Distribution of body fat 
A)  Testis 
B)  Ovary 
C)  Vagina 
D)  Facial hair 
E)  Distribution of body fat

Question 9

Myotonia of skeletal muscles is characteristic of the excitement phase and refractory period.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following explains the neural mechanism of an erection?

Accepted Answer

A)  It is an autonomic reflex mediated predominantly by parasympathetic nerve fibers. 
B)  It is an autonomic reflex mediated predominantly by sympathetic nerve fibers. 
C)  It is a somatic reflex mediated predominantly by parasympathetic nerve fibers. 
D)  It is a somatic reflex mediated predominantly by sympathetic nerve fibers. 
E)  It is an exclusively voluntary action mediated by the cerebral cortex. 
A)  It is an autonomic reflex mediated predominantly by parasympathetic nerve fibers. 
B)  It is an autonomic reflex mediated predominantly by sympathetic nerve fibers. 
C)  It is a somatic reflex mediated predominantly by parasympathetic nerve fibers. 
D)  It is a somatic reflex mediated predominantly by sympathetic nerve fibers. 
E)  It is an exclusively voluntary action mediated by the cerebral cortex.

Question 11

At the end of meiosis I there are __________,whereas at the end of meiosis II there is/are __________.

Accepted Answer

A)  two diploid (2n)cells;one diploid (2n)cell 
B)  two diploid (2n)cells;one haploid (n)cell 
C)  two diploid (2n)cells;four haploid (n)cells 
D)  two haploid (n)cells;four haploid (n)cells 
E)  two haploid (n)cells;one diploid (2n)cell 
A)  two diploid (2n)cells;one diploid (2n)cell 
B)  two diploid (2n)cells;one haploid (n)cell 
C)  two diploid (2n)cells;four haploid (n)cells 
D)  two haploid (n)cells;four haploid (n)cells 
E)  two haploid (n)cells;one diploid (2n)cell

Question 12

Which of the following is not a change in the male body that results from puberty?

Accepted Answer

A)  Deepening of the voice 
B)  Gain in muscle mass 
C)  Growth of the scrotum and penis 
D)  Acne 
E)  These are all changes associated with male puberty. 
A)  Deepening of the voice 
B)  Gain in muscle mass 
C)  Growth of the scrotum and penis 
D)  Acne 
E)  These are all changes associated with male puberty.

Question 13

The acrosome contains enzymes used to __________.

Accepted Answer

A)  dissolve the mucosa of the vagina 
B)  dissolve the mucosa of the uterus 
C)  dissolve the stickiness of the semen 
D)  penetrate the vagina 
E)  penetrate barriers surrounding the ovum 
A)  dissolve the mucosa of the vagina 
B)  dissolve the mucosa of the uterus 
C)  dissolve the stickiness of the semen 
D)  penetrate the vagina 
E)  penetrate barriers surrounding the ovum

Question 14

Which of the following is true regarding the blood-testis barrier?

Accepted Answer

A)  It prevents antibodies in the blood from getting to the germ cells. 
B)  It prevents heat loss from the testes. 
C)  It prevents blood from getting to the testes. 
D)  It maintains testis temperature at 35°C. 
E)  It maintains testis temperature at 37°C. 
A)  It prevents antibodies in the blood from getting to the germ cells. 
B)  It prevents heat loss from the testes. 
C)  It prevents blood from getting to the testes. 
D)  It maintains testis temperature at 35°C. 
E)  It maintains testis temperature at 37°C.

Question 15

Only germ cells undergo meiosis,which produces four haploid (n)cells with 23 chromosomes each.

Accepted Answer

A) True 
 B)False

Question 16

The gene that codes for the testis-determining factor (TDF)is found in or on the __________.

Accepted Answer

A)  Y chromosome 
B)  X chromosome 
C)  gonadal ridges 
D)  fetal testes 
E)  mesonephros 
A)  Y chromosome 
B)  X chromosome 
C)  gonadal ridges 
D)  fetal testes 
E)  mesonephros

Question 17

Genetic males are XY and genetic females are XX.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following is not a function of the nurse cells?

Accepted Answer

A)  They secrete inhibin. 
B)  They secrete androgen-binding protein. 
C)  They secrete testosterone. 
D)  They protect and support the germ cells. 
E)  Their tight junctions form the blood-testis barrier. 
A)  They secrete inhibin. 
B)  They secrete androgen-binding protein. 
C)  They secrete testosterone. 
D)  They protect and support the germ cells. 
E)  Their tight junctions form the blood-testis barrier.

Question 19

Which of the following does not play a role in thermoregulation of the testes?

Accepted Answer

A)  The bulbospongiosus muscle 
B)  The cremaster 
C)  The pampiniform plexus of veins 
D)  The countercurrent heat exchanger 
E)  The dartos muscle 
A)  The bulbospongiosus muscle 
B)  The cremaster 
C)  The pampiniform plexus of veins 
D)  The countercurrent heat exchanger 
E)  The dartos muscle

Question 20

The orgasm-emission phase of the male sexual response is stimulated by __________.

Accepted Answer

A)  efferent sympathetic signals from the sacral region of the spinal cord 
B)  efferent sympathetic signals from the lumbar region of the spinal cord 
C)  efferent parasympathetic signals from the sacral region of the spinal cord 
D)  efferent parasympathetic signals from the lumbar region of the spinal cord 
E)  efferent somatic signals from the thoracic region of the spinal cord 
A)  efferent sympathetic signals from the sacral region of the spinal cord 
B)  efferent sympathetic signals from the lumbar region of the spinal cord 
C)  efferent parasympathetic signals from the sacral region of the spinal cord 
D)  efferent parasympathetic signals from the lumbar region of the spinal cord 
E)  efferent somatic signals from the thoracic region of the spinal cord

Exam 27: The Male Reproductive System

Erectile dysfunction prevents ejaculation in most cases.

The __________ is the gonad and the __________ is the gamete.

In the process of spermiogenesis,__________ become __________.

The haploid (n)result of meiosis I is called a __________.

Which of the following is the correct pathway of sperm cells from their formation to ejaculation?

Males produce sperm and females produce eggs.

Spermiogenesis is the last stage of meiosis.

Which of the following is a secondary sex organ?

Myotonia of skeletal muscles is characteristic of the excitement phase and refractory period.

Which of the following explains the neural mechanism of an erection?

At the end of meiosis I there are __________,whereas at the end of meiosis II there is/are __________.

Which of the following is not a change in the male body that results from puberty?

The acrosome contains enzymes used to __________.

Which of the following is true regarding the blood-testis barrier?

Only germ cells undergo meiosis,which produces four haploid (n)cells with 23 chromosomes each.

The gene that codes for the testis-determining factor (TDF)is found in or on the __________.

Genetic males are XY and genetic females are XX.

Which of the following is not a function of the nurse cells?

Which of the following does not play a role in thermoregulation of the testes?

The orgasm-emission phase of the male sexual response is stimulated by __________.

Major Themes of Anatomy and Physiology

The Chemistry of Life

Cellular Form and Function

Genetics of Cellular Function

Histology

The Integumentary System

Bone Tissue

The Skeletal System

Joints

The Muscular System

Muscular Tissue

Nervous Tissue

The Spinal Cord,spinal Nerves,and Somatic Reflexes

The Brain and Cranial Nerves

The Autonomic Nervous System and Visceral Reflexes

Sense Organs

The Endocrine System

The Circulatory System: Blood

The Circulatory System: Heart

The Circulatory System: Blood Vessels and Circulation

The Lymphatic and Immune Systems

The Respiratory System

The Urinary System

Fluid, electrolyte, and Acidbase Balance

The Digestive System

Nutrition and Metabolism

The Female Reproductive System

Human Development and Aging

Atlas a General Orientation to Human Anatomy

Filters

The is the gonad and the is the gamete.

In the process of spermiogenesis, become .

At the end of meiosis I there are ,whereas at the end of meiosis II there is/are .