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Biol exam 3 > CH 16 > Flashcards

CH 16 Flashcards

1
Q

1) What is the only body system that does NOT contribute to the body?s homeostasis?

A

reproductive.

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2
Q

2) In the human male, several hundred million sperm are produced by spermatogenesis which takes place in what structures?

A

seminiferous tubules.

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3
Q

3) Where does sperm production occur?

A

testes.

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4
Q

4) What substances are found in the seminal fluid?

A

buffers, prostaglandins, mucus, fructose

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5
Q

5) The seminal vesicles (?sperm vessels?) are misnamed. Where are sperm actually stored?

A

epididymis.

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6
Q

6) If the ductus deferens tubes are cut and tied (vasectomy), what will the semen not contain?

A

sperm.

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7
Q

7) What is the last structure that a sperm travels through as it leaves the body?

A

urethra

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8
Q

8) True or False: The ureter is part of the urinary system, but not the reproductive system.

A

TRUE

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9
Q

9) Where do sperm become fully motile?

A

vagina.

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10
Q

10) True or False: Human chorionic gonadotropin is in some way responsible for the production of sperm.

A

FALSE

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11
Q

11) True or False: Because males do not have a follicle, the follicle-stimulating hormone has no function in males.

A

FALSE

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12
Q

12) What does testosterone do?

A

stimulates sperm production, promotes the normal development and maintenance of sexual behavior, is responsible for secondary sexual characteristics, is responsible for the development of the male genitalia.

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13
Q

13) What does the release of testosterone require?

A

luteinizing hormone and GnRH, only.

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14
Q

14) Based on their response to a particular hormone from the anterior pituitary, Sertoli cells of the male are most like __________ of the female.

A

ovarian follicles

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15
Q

15) List everything found in mature sperm.

A

DNA molecules, acrosome with enzymes, mitochondria, microtubules in the tail

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16
Q

16) What are the principal organs of the female human reproductive system?

A

clitoris, vagina, oviduct, ovary, uterus

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17
Q

17) What is the primary reproductive organ in the human female?

A

ovary.

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18
Q

18) What is the passageway that channels ova from the ovary into the uterus known as?

A

oviduct.

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19
Q

20) Which of the principal organs of the female human reproductive system is NOT essential to the reproductive process?

A

clitoris

20
Q

21) True or False: Fertilization occurs in the vagina.

A

FALSE

21
Q

22) The cervix is part of what other structure?

A

uterus.

22
Q

23) What mammals do NOT exhibit seasonal sexual activities?

A

primates

23
Q

24) True or False: The human female will produce more gametes than her male counterpart.

A

FALSE

24
Q

25) What hormones are exclusively female?

A

progesterone

25
Q

26) What are FSH and LH secreted by?

A

anterior pituitary.

26
Q

27) What triggers ovulation?

A

high levels of LH.

27
Q

28) Destruction of the corpus luteum, if pregnancy does NOT occur, results from the action of what substance?

A

prostaglandins.

28
Q

29) Menstrual flow begins in response to what stimulus?

A

falling levels of both estrogen and progesterone.

29
Q

30) What hormone serves to end the menstrual cycle and where is it secreted?

A

the secretion of prostaglandins by the corpus luteum that lead to its self-destruction

30
Q

31) Using your knowledge of the feedback loops of human female hormones, what would you predict is the result of high levels of estrogen and progesterone in the blood?

A

absence of monthly ovulation

31
Q

32) True or False: The menstrual flow is the result of no implantation of a zygote, discarded uterine linings, and decreased levels of progesterone.

A

TRUE

32
Q

33) Menstrual flow results in the discharge of what?

A

the endometrial lining of the uterus.

33
Q

34) Ovulation is triggered primarily by what?

A

a surge of LH that occurs halfway through the menstrual cycle.

34
Q

35) Ovulation is triggered by a surge in the level of __________ in the circulatory system.

A

luteinizing hormone

35
Q

37) What is the union of egg and sperm called?

A

fertilization.

36
Q

38) What is sexual intercourse technically referred to as?

A

coitus.

37
Q

39) Which form of contraception is the most effective in helping prevent venereal disease?

A

condoms

38
Q

40) What is the most effective contraceptive approach?

A

diaphragm, pill

39
Q

41) The type of contraception that functions by preventing implantation (not fertilization) is (are) what?

A

an intrauterine device (IUD).

40
Q

42) What is the type of contraception that works by preventing ovulation?

A

birth control pills.

41
Q

44) What is the least successful method of birth control?

A

douching

42
Q

45) What does a contraceptive pill contain?

A

both estrogen and progesterone.

43
Q

46) What structures produce portions of the seminal fluid?

A

prostate, seminal vesicle, bulbourethral gland

44
Q

47) What are the parts of a sperm?

A

flagella, midpiece, acrosome

45
Q

48) What does testosterone do?

A

promotes secondary sex characteristics, controls sexual behavior, necessary for growth and function of male reproductive tract , stimulates spermatogenesis

Biol exam 3 (6 decks)

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