Human Reproduction

Question 1

FSH helps in which process

Answer 1

Spermiogenesis

Question 2

amount of sperms

Answer 2

200-300 million

Question 3

secretions of accesory ducts imp for

Answer 3

maturtion and motility both

Question 4

oogonia arrested in

Answer 4

prophase 1

Question 5

temporarily arrested oogonia c/a?

Answer 5

primary oocyte

Question 6

change in primary oocyte?

Answer 6

layer of granulosa cells come and this is c/a primary follicle

Question 7

follicles left at puberty?

Answer 7

60,000-80,000 in each ovary

Question 8

change in primary follicle?

Answer 8

new granulosa cells and new THECA now c/a secondary follicle

Question 9

theca in tertiary follicle is organised into?

Answer 9

differentiates into outer theca externa and inner theca interna

Question 10

what happens inside tertiary follicle?

Answer 10

primary oocyte completes meiotic div , unequal

Question 11

meiotic div inside tertiary follicle leads to?

Answer 11

haploid secondary oocyte and 1st polar body

Question 12

secondary oocyte present in?

Answer 12

tertiary follicle

Question 13

zona pellucida covers?

Answer 13

secondary oocyte

Question 14

zona pellucida covered sec oocyte present in?

Answer 14

graafian follicle

Question 15

LH and FSh stimulate?

Answer 15

secretion of estrogen by the growing follicles

Question 16

fertilisation happens at?

Answer 16

ampullary region or junction of isthmus and ampulla

Question 17

what happens when sperm enters into ovum?

Answer 17

induces the completion of meiotic div of secondary oocyte

Question 18

which div in zygote?

Answer 18

mitotic c/a cleavage

Question 19

cleavage location?

Answer 19

isthmus to uterus travel

Question 20

result of cleavage?

Answer 20

daughter cells c/a blastomeres

Question 21

morula has ?

Answer 21

8-16 blastomeres

Question 22

placenta formed by?

Answer 22

chorionic villi and uterine tissue

Question 23

hormone in pregnancy not sec by placenta?

Answer 23

relaxin by ovary

Question 24

how many germ layers give rise to tissues or organs?

Answer 24

all 3

Question 25

stem cells present in?

Answer 25

inner cell mass

Question 26

1 month?

Answer 26

embryo heart

Question 27

end of 2nd month

Answer 27

limbs and ligits

Question 28

end of 12 weeks/ 1st trimester/ 3 months

Answer 28

major organ systems eg limbs and external genital organs

Question 29

5th month

Answer 29

first movements, hair on head

Question 30

end of 24 weeks/ 2nd tri/ 6 months

Answer 30

fine hair, eyelids seperate, eyelashes

Question 31

signals of parturition originate from?

Answer 31

fully developed foetus and placenta

Question 32

intensity of contractions initially?

Answer 32

mild

Question 33

when mammary gland start producing milk?

Answer 33

end of pregnancy

Question 34

in ovary, where are follicles present?

Answer 34

embedded in stroma

Question 35

neuroendocrine mechanism involves

Answer 35

cortisol, estrogens, oxytocin

Question 36

which membrane prevents dessication of embryo

Answer 36

amnion