Ch_41_Reproductive_System Flashcards Preview

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Flashcards in Ch_41_Reproductive_System Deck (77)
1

scrotum physical description

smooth muscle sac that houses testes away from body

2

why is scrotum elastic?

regulate temperature - further from body cools testes, close to body warms testes

3

what temperature does sperm develop at?

94 - 95 degrees F

4

where are sperm created?

testes

5

testes tubules where meiosis occurs

seminiferous tubules

6

number of sperm created each day

100 - 150 million

7

where in testes is testosterone produced?

interstitial cells

8

what stimulates testosterone creation

FSH

9

what gland does FSH get released from

pituitary gland

10

testes are covered with _ so host will avoid injury to them

neurons sensitive to pressure

11

Epididymus location

top of testes

12

number of days of sperm production located in Epididymis

10-14

13

what do the vas deferens connect

epididymus and prostate gland

14

T/F vas deferens are sperm ducts?

T

15

how do Vas Deferens transport sperm from epididymus to prostate gland?

smooth muscle contractions

16

What is cut by a vasectomy?

Vas Deferens

17

what does the Seminal Vesicles gland release into semen

fructose for nutrition for sperm, prostaglandins for stimulating smooth muscle contraction that propels sperm

18

what does the Prostate Gland release into semen

bicarbonate ions

19

why does the Prostate Gland release bicarbonate ions into semen?

the inside of a vagina is very acidic to kill pathogens, the bicarbonate ions nuetralize the acidity so that sperm can survive

20

how does the Prostate Gland help transport sperm through urethra?

muscular contractions

21

besides reproduction, what other major function does Prostrate Gland regulate?

urination

22

What does the Bulbourethral Gland secrete and where?

thick mucous, urethra

23

Why is thick mucous released in the urethra by the Bulbourethral Gland

neutralize vaginal acids and urethra lubrication so that semen can exit easier

24

male external genitalia for delivering semen into vagina

penis

25

urethra description

penis tube semen moves through

26

how is the penis erected when stimulated?

erectile tissues on sides of penis filled with blood

27

What is on the sperm head?

Acrosome and DNA

28

Acrosome role

penetration enzyme

29

What is on the sperm neck?

fructose attachment

30

another word for sperm tail

flagellum

31

what is the sperm flagellum made out of

protein microtubule fibers

32

The female sperm is _, and the male sperm is _

X, Y

33

What is produced at the ovaries?

eggs

34

where are the ovaries located?

lower abdomen

35

what is the approximate size of ovaries?

golf balls

36

where does meiosis in ovaries occur?

follicle chambers

37

typical rate of egg production for ovaries

28 days

38

what hormone is created in the follicle cells?

estrogen

39

what does the emptied follicle chamber become

Corpus Luteum

40

What hormone is created in the Corpus Luteum

Progesterone

41

Oviducts another term

Fallopian Tubes

42

What do the Fallopian Tubes connect

ovary and uterus

43

How long are typical Fallopian Tubes?

4 inches

44

What are the ends of Fallopian Tubes called?

fimbriae

45

What do Fallopian Tubes fimbriae resemble

fingers

46

The Fallopian Tubes, Ovaries, or Uterus is where fertilization usually occurs?

Fallopian Tubes

47

What is cut in tubal ligation

Fallopian Tubes

48

Where is the uterus found?

lower abdomen

49

Approximately what size is the uterus

baseball

50

Common word for uterus

womb

51

The Fallopian Tubes, Ovaries, or Uterus is where placenta attachment occurs?

Uterus

52

The fertilized egg receives nutrition from _ while placenta grows

endometrium

53

This lining is lost every month in menstruation if no pregnancy

endometrium

54

The openining known as the _ is between the uterus and vagina

cervix

55

T/F Before sperm can fertilize the egg, it must pass the cervix

T

56

How large does the cervix become during labor

softball

57

The female organ used in sexual intercourse

vagina

58

Where does the vagina end internally

at the cervix, where it is seperated from uterus

59

_ and _ line the vagina

acid releasing cells and mucous glands

60

labia description

tissue layers that protect outside of vagina

61

clitoris description

small erectile organ with many nerve endings that is used for sexual stimulation

62

four main hormones that regulate menstrual cycle

FSH, LH, progesterone, and estrogen

63

what does FSH stand for

Follicle Stimulating Hormone

64

what does LH stand for

Lutenizing Hormone

65

which gland secretes FSH

pituitary

66

what structure produces estrogen

Ovary

67

what structure produces LH

pituitary

68

Ovulation stimulation synopsis from FSH release

pituitary releases FSH ->increased FSH concentration in blood stimulates ovary follicles to create estrogen -> increased estrogen concentration causes pituitary to stop releasing FSH and release LH -> LH leads to ovulation

69

Corpus Luteum is a temporary or permanent gland

temporary

70

what becomes the Corpus Luteum

the vacated follice that egg departed from

71

What hormone does Corpus Luteum release

progesterone

72

menstruation cycle from egg release

egg released from follicle -> vacated follicle becomes Corpus Luteum -> Corpus Luteum releases progesterone -> progesterone stops pituitary and ovary glands hormone release for a period of time giving chance for fertilization of egg -> egg not fertilized -> Corpus Luteum disintegrates -> progesterone concentration decreases -> pituitary no longer inhibited by progesterone -> FSH released -> endometrium removed

73

pregnancy commencement from egg release

egg released from follicle -> vacated follicle becomes Corpus Luteum -> Corpus Luteum releases progesterone -> progesterone stops pituitary and ovary glands hormone release for a period of time giving change for fertilization of egg -> pregnancy -> progesterone concentration stays high for pregnancy duration

74

permanent forms of contraception

Tubal Ligation, Vasectomy

75

temporary forms of hormonal contraception

injections and birth control pills

76

devices used for contraception

male/female condoms, daiphragm, IUD

77

stated mechanism by which temporary contraception prevents conception

ovulation prevention (There are other mechanisms as well not stated in the slide. Such as changing the cervical mucous to limit sperm mobility. Also, it may thin the endometrium lining - which debatably prevents implantation during the instances where ovulation does occur and the egg is fertilized)