Chapter 25- The Reproductive Systems
Choose the single best answer to each question.
1) Which of the following is correct?
A) Gonads produce gametes and secrete sex hormones.
B) Ducts store and transport gametes.
C) Accessory glands produce substances that protect the gametes and facilitate their movement.
D) A and B are correct.
E) A, B and C are correct.
Answer: E
Link to: Introduction
Difficulty: Easy
2) Which of the following is NOT part of the male reproductive system?
A) prostate gland
B) epididymis
C) vestibular gland
D) bulbourethral gland
E) testis
Answer: C
Link to: 25.1
Difficulty: Medium
3) The scrotum
A) regulates the temperature of the testes.
B) is a single pouch of skin containing both testes.
C) contains detrusor muscles that wrinkle the scrotum and elevates the testes.
D) contains cremaster muscles that lower the testes.
E) All of these are correct.
Answer: A
Link to: 25.1
Difficulty: Medium
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,4) The testes
A) develop within the scrotal cavity.
B) produce sperm in their seminiferous tubules.
C) contain sustentacular cells that produce testosterone.
D) contain interstitial cells that maintain a blood-testis barrier.
E) are enclosed in a mucous membrane called the tunica vaginalis.
Answer: B
Link to: 25.1
Difficulty: Medium
5) Sertoli (sustentacular) cells do all of the following EXCEPT:
A) nourish spermatocytes, spermatids, and sperm.
B) phagocytize excess spermatid cytoplasm.
C) produce fluid for sperm transport.
D) mediate the effects of testosterone and LH.
E) secrete androgen-binding protein and the hormone inhibin.
Answer: D
Link to: 25.1
Difficulty: Medium
6) Which of the following cells develops first?
A) primary spermatocyte
B) secondary spermatocyte
C) spermatogonium
D) spermatid
E) sperm cell
Answer: C
Link to: 25.1
Difficulty: Medium
7) Sperm production
A) takes over two months to complete.
B) yields about 300 million sperm per day.
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,C) occurs in response to FSH.
D) yields cells that a head capped by an acrosome, a middle piece full of mitochondria, and a tail.
E) All of these are correct.
Answer: E
Link to: 25.1
Difficulty: Medium
8) Testosterone and dihydrotestosterone do each of the following EXCEPT:
A) bind to the different receptors.
B) stimulate development of male reproductive structures in an embryo.
C) bring about development and enlargement of the male sex organs.
D) bring about development of masculine secondary sexual characteristics.
E) stimulate protein synthesis.
Answer: A
Link to: 25.1
Difficulty: Medium
9) Place the following in the order in which sperm will pass through them after leaving the
seminiferous tubules.
1. ductus epididymis
2. efferent ducts
3. ductus (Vas) deferens
4. rete testis
5. straight tubules
A) 4, 5, 2, 1, 3
B) 5, 4, 2, 1, 3
C) 5, 2, 4 1, 3
D) 5, 4, 1, 2, 3
E) 5, 4, 2, 3, 1
Answer: B
Link to: 25.2
Difficulty: Medium
10) The epididymis
A) is a question mark shaped organ that lies along the anterior border of a testis.
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, B) can store sperm for a year or more.
C) is the site where sperm become capable of fertilizing an ovum.
D) is about 10 cm (2 inches) long when uncoiled.
E) is the site where sperm lose motility.
Answer: C
Link to: 25.2
Difficulty: Medium
11) Which of the following is true of the ductus deferens?
A) Its superior end, called the ampulla, connects to the epididymis.
B) Its inferior end connects to the ejaculatory duct.
C) It moves sperm toward the ejaculatory duct using cilia.
D) It can store sperm up to several months.
E) It produces sperm.
Answer: D
Link to: 25.2
Difficulty: Medium
11) Which of the following is NOT part of the spermatic cord?
A) ductus deferens
B) testicular artery
C) lymphatic vessels
D) autonomic nerves
E) dartos muscle
Answer: E
Link to: 25.2
Difficulty: Medium
12) The male urethra
A) serves both reproductive and urinary functions.
B) consists of prostatic, membranous and penile (spongy) regions.
C) includes the ejaculatory duct.
D) A and B are correct.
E) A, B and C are correct.
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Choose the single best answer to each question.
1) Which of the following is correct?
A) Gonads produce gametes and secrete sex hormones.
B) Ducts store and transport gametes.
C) Accessory glands produce substances that protect the gametes and facilitate their movement.
D) A and B are correct.
E) A, B and C are correct.
Answer: E
Link to: Introduction
Difficulty: Easy
2) Which of the following is NOT part of the male reproductive system?
A) prostate gland
B) epididymis
C) vestibular gland
D) bulbourethral gland
E) testis
Answer: C
Link to: 25.1
Difficulty: Medium
3) The scrotum
A) regulates the temperature of the testes.
B) is a single pouch of skin containing both testes.
C) contains detrusor muscles that wrinkle the scrotum and elevates the testes.
D) contains cremaster muscles that lower the testes.
E) All of these are correct.
Answer: A
Link to: 25.1
Difficulty: Medium
188
,4) The testes
A) develop within the scrotal cavity.
B) produce sperm in their seminiferous tubules.
C) contain sustentacular cells that produce testosterone.
D) contain interstitial cells that maintain a blood-testis barrier.
E) are enclosed in a mucous membrane called the tunica vaginalis.
Answer: B
Link to: 25.1
Difficulty: Medium
5) Sertoli (sustentacular) cells do all of the following EXCEPT:
A) nourish spermatocytes, spermatids, and sperm.
B) phagocytize excess spermatid cytoplasm.
C) produce fluid for sperm transport.
D) mediate the effects of testosterone and LH.
E) secrete androgen-binding protein and the hormone inhibin.
Answer: D
Link to: 25.1
Difficulty: Medium
6) Which of the following cells develops first?
A) primary spermatocyte
B) secondary spermatocyte
C) spermatogonium
D) spermatid
E) sperm cell
Answer: C
Link to: 25.1
Difficulty: Medium
7) Sperm production
A) takes over two months to complete.
B) yields about 300 million sperm per day.
189
,C) occurs in response to FSH.
D) yields cells that a head capped by an acrosome, a middle piece full of mitochondria, and a tail.
E) All of these are correct.
Answer: E
Link to: 25.1
Difficulty: Medium
8) Testosterone and dihydrotestosterone do each of the following EXCEPT:
A) bind to the different receptors.
B) stimulate development of male reproductive structures in an embryo.
C) bring about development and enlargement of the male sex organs.
D) bring about development of masculine secondary sexual characteristics.
E) stimulate protein synthesis.
Answer: A
Link to: 25.1
Difficulty: Medium
9) Place the following in the order in which sperm will pass through them after leaving the
seminiferous tubules.
1. ductus epididymis
2. efferent ducts
3. ductus (Vas) deferens
4. rete testis
5. straight tubules
A) 4, 5, 2, 1, 3
B) 5, 4, 2, 1, 3
C) 5, 2, 4 1, 3
D) 5, 4, 1, 2, 3
E) 5, 4, 2, 3, 1
Answer: B
Link to: 25.2
Difficulty: Medium
10) The epididymis
A) is a question mark shaped organ that lies along the anterior border of a testis.
190
, B) can store sperm for a year or more.
C) is the site where sperm become capable of fertilizing an ovum.
D) is about 10 cm (2 inches) long when uncoiled.
E) is the site where sperm lose motility.
Answer: C
Link to: 25.2
Difficulty: Medium
11) Which of the following is true of the ductus deferens?
A) Its superior end, called the ampulla, connects to the epididymis.
B) Its inferior end connects to the ejaculatory duct.
C) It moves sperm toward the ejaculatory duct using cilia.
D) It can store sperm up to several months.
E) It produces sperm.
Answer: D
Link to: 25.2
Difficulty: Medium
11) Which of the following is NOT part of the spermatic cord?
A) ductus deferens
B) testicular artery
C) lymphatic vessels
D) autonomic nerves
E) dartos muscle
Answer: E
Link to: 25.2
Difficulty: Medium
12) The male urethra
A) serves both reproductive and urinary functions.
B) consists of prostatic, membranous and penile (spongy) regions.
C) includes the ejaculatory duct.
D) A and B are correct.
E) A, B and C are correct.
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