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A&P Test 3 > Reproduction > Flashcards

Reproduction Flashcards

http://www.easynotecards.com/print_list/3484 http://quizlet.com/4806678/reproductive-system-flash-cards/

1
Q 
Prior to ejaculation, sperm are stored primarily in

A) the seminiferous tubules

B) the rete testis

C) the epididymis

D) the seminal vesicles

E) the ejaculatory ducts
A

C) the epididymis

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2
Q

A low secretion of luteinizing hormone (LH) in the normal male adult would cause
A) decreased testosterone secretion
B) excessive beard growth
C) increased spermatogenesis
D) shrinkage of the anterior pituitary gland

A

A) decreased testosterone secretion

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3
Q

T/F The amount of testosterone and sperm produced by the testes is dependent on the influence of FSH alone.

A

False

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4
Q 
Which male hormone inhibits the secretion of FSH? 
A) ACTH 
B) inhibin 
C) ICSH 
D) testosterone
A

B) inhibin

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5
Q

Select the correct statement about testosterone control.
A) GnRH from the hypothalamus causes FSH and LH release from the anterior pituitary.
B) FSH stimulates testicular production of testosterone.
C) Inhibin and testosterone exert positive feedback on the hypothalamus and pituitary.
D) The pineal gland is believed to be the gland that exerts the most influence in testosterone control.

A

A) GnRH from the hypothalamus causes FSH and LH release from the anterior pituitary.

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6
Q

A surge in _____ directly triggers ovulation.

A

LH

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7
Q 
Which hormone is absolutely necessary for ovulation to occur? 
A) LH 
B) FSH 
C) progesterone 
D) estrogen
A

A) LH

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8
Q

Select the correct statement about the hormonal events of the ovarian cycle.
A) Rising levels of estrogen start follicle development.
B) High estrogen levels result in a surge of LH release.
C) The follicle begins to secrete progesterone in response to estrogen stimulation.
D) The LH surge stimulates further development of the secondary oocyte.

A

B) High estrogen levels result in a surge of LH release.

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9
Q

The primary function of the uterus is to ________.
A) protect the ovaries
B) synthesize female hormones
C) regulate the ovarian and menstrual cycles
D) receive, retain, and nourish a fertilized ovum

A

D) receive, retain, and nourish a fertilized ovum

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10
Q

The release of _______ encourages interstitial endocrine cells to release _______.

A

luteinizing hormone; testosterone

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11
Q

Why does only one egg, rather than four eggs, develop during oogenesis, given that spermatogenesis results in four sperm formed from one stem cell?

A

The unequal cytoplasmic division that results in one egg and three polar bodies ensures that a fertilized egg has ample nutrients for its journey to the uterus.

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12
Q

Which of the following glands are responsible for about 70% of the volume of semen?

A

seminal glands

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13
Q

Which of the following hormones causes the oocyte to mature?

A

FSH

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14
Q 
The constancy of the chromosome number from one cell generation to the next is maintained through \_\_\_\_\_\_\_\_. 
A) mitosis 
B) meiosis 
C) cytokinesis 
D) DNA synthesis
A

B) meiosis

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15
Q

T/F The secretions of the bulbourethral glands neutralize traces of acidic urine in the urethra and serve as a lubricant during sexual intercours

A

True

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16
Q 
The ability of a male to ejaculate is due to the action of \_\_\_\_\_\_\_\_.

A) detumescence

B) the dartos muscle

C) luteinizing hormone

D) the bulbospongiosus muscles
A

D) the bulbospongiosus muscles

17
Q 
Which of the following hormones controls the release of anterior pituitary gonadotropins?

A) LH

B) FSH

C) GnRH

D) testosterone
A


C) GnRH

18
Q 
The structures that receive the ovulated oocyte, providing a site for fertilization, are called \_\_\_\_\_\_\_\_.

A) the Graafian follicles

B) the fallopian tubes

C) the infundibula

D) the fimbriae
A

B) the fallopian tubes

19
Q 
Which of the following constitutes the female counterpart of the male scrotum?

A) the clitoris

B) the greater vestibular glands

C) the labia majora

D) the mons pubis
A

C) the labia majora

20
Q

Spermiogenesis involves ________.

A) the formation of four haploid cells from a spermatogonium

B) the movement of sperm in the female genital tract

C) the formation of a functional sperm by the stripping away of superfluous cytoplasm

D) the sequence of events in the rete testis

A

C) the formation of a functional sperm by the stripping away of superfluous cytoplasm


21
Q 
The cells that produce testosterone in the testis are called \_\_\_\_\_\_\_\_.

A) spermatocytes

B) spermatogonia

C) sustentacular cells

D) interstitial cells
A

D) interstitial cells

22
Q 
The testicular cells that construct the blood-testis barrier are the \_\_\_\_\_\_\_\_.

A) spermatocytes

B) spermatogonia

C) sustentacular cells

D) interstitial cells
A

C) sustentacular cells

23
Q

The basic difference between spermatogenesis and oogenesis is that ________.

A) during spermatogenesis two more polar bodies are produced

B) the mature ovum is n, while the sperm is 2n

C) in oogenesis, one mature ovum is produced, and in spermatogenesis four mature sperm are produced from the parent cell

D) spermatogenesis involves mitosis and meiosis, but oogenesis involves meiosis only

A

C) in oogenesis, one mature ovum is produced, and in spermatogenesis four mature sperm are produced from the parent cell

24
Q

The seminal vesicles ________.

A) produce a yellowish fluid rich in fructose

B) produce about 90% of the volume of semen

C) encircle the upper part of the urethra

D) attach at the base of the penis

A

A) produce a yellowish fluid rich in fructose


25
Q

Which of the following statements about spermatogenesis is NOT true?

A) The spermatogonium forms the primary spermatocyte.

B) The primary spermatocyte forms two secondary spermatocytes.

C) The secondary spermatocytes each form two spermatids.

D) Each spermatid forms two sperm

A

D) Each spermatid forms two sperm

26
Q

A low secretion of luteinizing hormone (LH) in the normal male adult would cause ________.

A) decreased testosterone secretion

B) excessive beard growth

C) increased spermatogenesis

D) shrinkage of the anterior pituitary gland

A

A) decreased testosterone secretion


27
Q

Which is the most correct sequence of sperm flow in the male duct system?
A) Seminiferous tubules; prostatic urethra; vas deferens; ejaculatory duct; ampulla
B) Testes; epididymis; ductus deferens; urethra; seminal vesicle
C) Testes; ductus deferens; urethra; seminal vesicle
D) Seminiferous tubules; epididymis; vas deferens; ampulla; ejaculatory duct; urethra
E) Seminiferous tubules; vas deferens; ejaculatory duct; ampulla; urethra

A

D) Seminiferous tubules; epididymis; vas deferens; ampulla; ejaculatory duct; urethra

28
Q 
Which represents a correct cascade of reproductive hormones in males?
A) GnRH; LH/FSH; testosterone + inhibin
B) FSH; GnRH; LH; testosterone
C) FSH; GnRH; testosterone; LH
D) FSH; LH; GnRH; testosterone
E) LH; GnRH; FSH; testosterone
A

A) GnRH; LH/FSH; testosterone + inhibin

29
Q 
Within the ovary, progesterone is produced by the
A) corpus luteum.
B) tertiary follicles.
C) primary follicles.
D) corpus albicans.
E) secondary follicles.
A

A) corpus luteum.

30
Q 
Sperm are produced in the
A) seminal vesicles.
B) seminiferous tubules.
C) epididymis.
D) spermatic cord.
E) interstitial cells.
F) prostate.
A

B) seminiferous tubules.

31
Q 
During which of the following phases is the corpus luteum formed?
A) Proliferative
B) Follicular
C) Ovulation
D) Secretory
A

D) Secretory

32
Q 
The \_\_\_\_\_\_\_\_\_\_ follicle is the mature ovarian follicle.
A) secondary
B) primary
C) vesicular
D) primordial
A

C) vesicular

A&P Test 3 (4 decks)

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