Human Reproduction

Question 1

Reproductive events ??

Answer 1

Gametogenesis
Insemination
Fertilization
Implantation
Gestation
Parturition

Question 2

Where is the male reproductive system is located ?

Answer 2

Pelvis region

Question 3

Scrotum ?

Answer 3

It is pouch
Helps in lowering the temperature by 2-2.5 celcius
Nessecary for spermatogenesis

Question 4

Testis shape and size

Answer 4

Oval
L= 4 to 5cm
W= 2 to 3 cm

Question 5

Compartment of testis and how many ?

Answer 5

Testicular lobule
250

Question 6

Seminiferous tubules and lined by which cells ?

Answer 6

One lobule contain three highly coil seminiferous tubules
Lined by 2 types of cells called
GERM CELLS (spermatogonia)
-this goes under meiosis and forms sperms
SERTOLI CELLS
-provide nutrition to get cells

Question 7

Seminiferous tubules के बहार का मामला?

Answer 7

Interstitial space contains blood vessel and Leydig cells
these cells secrete Androgen

Question 8

male accesory ducts ?

Answer 8

rete testis, vasa efferentia epididymis, vas deferens

Question 9

male system testis?

Answer 9

seminiferroes tubules opened to vasa effrentia through retetestis

vasa efferentia to epididymis along the posterior surface of each testis

epidymis to vas deference that Ascend to the abdomen and loops over the urinary bladder
received duct from seminal vesicleand open into urethra as ejaculatory duct

urethra originates from the urinary bladder and extends through the penis to its external opening called urethral meatus

Question 10

male accessory glands ?

Answer 10

Paired seminal vesical
1 prostate gland
2 bulbourethral gland-lubed

Question 11

The female reproductive parts
?

Answer 11

2 ovaries —primary sex organ
2 oviducts
Uterus
Cervix
Vagina
External genitalia
Mammary gland

Question 12

Ovary ?location and size ?

Answer 12

Lower abdomen
2 to 4 cm
And connected to pelvic wall and uterus by ligaments

Ovary covered by thin epithelium
Which enclose ovarian stroma

Stroma into two
Peripheral cortex
Inner medulla

Question 13

Female accessory ducts

Answer 13

Fallopian tube ( oviduct )
Uterus
Vagina

Question 14

Fallopian tube length

Answer 14

10 12 cm

Question 15

Part closer to ovary ? And parts of oviduct

Answer 15

Infundibulum

And edges of infundibulum posses finger like projections called fimbriae help in collection ovum

Ampulla
Wider part

Isthmus
Narrow lumen and joins to uterus

Question 16

Uterus ?

Answer 16

Womb
Shape -inverted pear
Supported by ligaments attached to the pelvic wall

Walls of uterus
Perimetrium – thin external
Myometrium – middle thick smooth muscle
Strong contraction during delivery
Endometrium– inner glandular
Cyclic changes during menstrual cycle

Question 17

Female external genitalia?

Answer 17

Mons pubis - cusion of fatty tissue
Labia majora - fleshy fold tissue, surround the vagina,extend from Mons pubis
Labia minors - pair fold of tissue under labia majora
Hymen - opening of vagina partially covered by this
Clitoris - tiny finger like structure

Question 18

Mammary gland?

Answer 18

Breasts that contain glandular tissue and variable amount of fats

15-20 mammary lobes
Mammary alveoli
Mammary tubule
Mammary duct
Mammary ampulla
Lactiferous ducts
Nipples

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Question 19

Immature male germ cells produce sperms by ? And at which age

Answer 19

Spermatogenesis
Puberty

Question 20

Spermatogonia location
And divides by which process?

Answer 20

Inside wall of seminiferous tubules
Mitotic division

Question 21

Spermatids to spermatozoa( sperm)
Process called?

Answer 21

Spermiogenesis

Question 22

Sperms release from seminiferous tubules by the process called ?

Answer 22

Spermiation

Question 23

Spermatogenesis starts by which hormone

Answer 23

Gnrh
Hypothalmic hormone

Act on anterior pituitary

Question 24

Functions of LH and FSH

Answer 24

LH act on leydigcells and stimulate synthesis and secretion of androgens

FSH act on Sertoli cells and stimulate secretion of some factors helps in spermiogenesis

Question 25

Sperm ?

Answer 25

Head - contains haploid nucleus
Anterior portion covered by cap like structure called acrosome
It is filled with enzymes
Neck
Middle piece - contains mitochondria.produce energy for motility
Tail

Plasma membrane envelope hole body