Chapter 27 - Reproductive Flashcards Preview

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Flashcards in Chapter 27 - Reproductive Deck (94):
1

biological perspective purpose of reproduction

perpetuate the species

2

somatic cells have how many chromosomes

46

3

what are gametes

reproductive cells

4

what is male gametes

sperm

5

what is female gametes

egg

6

how many chromosomes in gametes

23 each

7

what are the gametes contained in

gonads

8

maturation of sperm

spermatogenesis

9

maturation of egg

oogenesis

10

what becomes an egg

oocyte

11

what becomes a sperm

spermatozoa

12

what is a fertilized egg

ovum

13

development of human baby chain

egg - ovum
zygote - morula
blastocyst - embryo
fetus - (birth)

14

house the sperm in

testes (gonads)

15

testes are in the

scrotum

16

male repo tract

testes - epididymus - ductus (vas) deferens - uretha

17

male accessory organs

seminal vesicle
prostate gland
bulbourehtral gland (Cowper's gland)

18

another name for bulbourethral gland

cowper's gland

19

_________ muscle pulls testes toward the body

cremaster

20

why does cremaster contract

temperature

21

sperm is produced within the lobules in the

semineferous tubules

22

_________ produce androgens - especially testerone

leydig cells (interstitial cells)

23

when do testosterone levels begin to decline

50-50 yrs old

24

what is produced from spermatogenesis

spermatozoa

25

spermatogonia --}

daughter cells (mitosis)

26

primary spermatocytes --}

spermatids (meosis)

27

spermatids ----------}

spermatozoa

28

what is immature sperm

spermatids

29

what is mature sperm

spermatozoa

30

once matured to speratozoa it enters

lumen

31

The Sertoli Cells do the following:

produce fluid for semineforous tubules
produce inhibin
surround and enfold the spermatids

32

another name for sertoli cells

sustentacular cells

33

what maintains blood-testes barrier

sertoli cell fluid

34

what is contained in fluid of sertoli cells

high amount of hormones
K+, AAs
nutrients

35

inhibin leads to a decrease in

FSH

36

sertoli cells provide the spermatids

nutrients
chemical stimui

37

cell that only has 23 chromosomes

haploid

38

normal cell with 36 chromosomes

diploid

39

anatomy of sperm

head
neck
tail

40

sperm head contains

acrosomal cap
nucleus

41

sperm neck contains

centriole

42

sperm tail contains

flagellum

43

sperm maturation and storage takes place

epididymus

44

_________ is a duct from epididymus and ejaculatory duct

Vas deferens

45

the Vas defernes has an

ampulla

46

seminal vesicle functions

secrete semen
increase fructose
secrete prostaglandins
secrete fibrinogen

47

% of semen from seminal vesicle

60%

48

fructose is used for

spermatozoan metabolism

49

prostaglandins promoted

smooth muscle contraction in both men and women

50

fibrinogen leads to the formation of what

temp clot in vagina

51

the prostate gland secretes

fluid which is 20-30% semen
seminal plasmin

52

seminal plasmin is an

antibiotic

53

the bulbourethal glands (cowper's glands)

secrete thick alky mucuous
<5% semen

54

anatomy of penis

shaft, head, foreskin

55

penis head

glans

56

penis foreskin

prepuce

57

muscles within penis

corpus spongiosum
corpora cavernosum

58

female gonads

ovaries

59

eggs are limited and usually depleted

late 40s-50s

60

female repo tract

ovary -fimbriae - infundibulum - fallopian tube (uterine tube) - or oviduct - uterus with cervix - vagina

61

broad ligament supports

uterus, oviduct, ovary

62

_________ supports the ovaries

ovarian ligament

63

oogenesis

oogonia - primary oocyte - secondary oocyte(ovulation)

64

_________ is the degeneration of primoridal follicles

atresia

65

_________ are cells taht after division do not become eggs

polar bodies

66

_________ is an immature egg

follicle

67

egg maturation

primoridal follicles - primary follicle - secondary follicle - graafian follicle - ovulated oocyte

68

after ovulation the _________ becomes _________

corpus luteum
corpus albicans

69

corpus luteum is what color

yellow

70

corpus albicans is what color

white

71

after the corpus luteum becomes the corpus albicans it does what

disintegrates

72

_________ stimultes the ovarian cycle

FSH

73

LH stimulates teh corpus luteum to secrete

progestins esp progesterone

74

what secretes estrogen at primary follicle time

thecal cells
granulosa cells

75

anatomy of fallopian tube

infundibulum
ampulla
isthmus

76

what is located on the infundibulum

fibriae

77

uterus provides fetus

nutrients
warmth
protection

78

how many layers to uterus

3

79

layers of uterus

endometrium
myometrium
perimetrium

80

endometrium

glandular

81

myometrium

muscle

82

perimetrium

serosa

83

uterus vascularity

arcuate arteries

84

uterine cycle

menses
proliferative
secretory

85

menses

degeneration of functional zone

86

menstruation

endometrial lining . bye bye

87

proliferative (after menses)

restoration
phase is sustained by estrogen

88

secretory phase

increase secretion and enlarge
peaks 12 days after ovulation
repeates unless blastocyst

89

_________ muscular tube with hymen

vagina

90

muscle located in vagina

bulbospgiousus

91

other female features

labia (majora and minora)
glans clitoris

92

mammary gland aka breast

nipple
lactiferous sinus
duct
lobes
pectoral fat pad

93

breast milk supplies

milk
colostrum
IgA

94

what stimulates milk production for suckle

prlactin
oxytocin