Chapter 27 - Reproductive Flashcards Preview

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Flashcards in Chapter 27 - Reproductive Deck (94)
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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