Male Reproductive System

Question 1

Site of spermatozoa production

Answer 1

Seminiferous tubules

Question 2

Where does mature spermatozoa moved to

Answer 2

Moved to the lumen

Question 3

Each new cycle of spermatozoa occur

Answer 3

Each 16 Days new cycle

Question 4

Spermatozoa production need how many days

Answer 4

70 -80 days

Question 5

SpermaTogenesis is under the influence of which hormone

Answer 5

Is under the influence of FSH

Question 6

Mention the 3 phases of spematogenesis

Answer 6

1) spermatocytogenesis .
2) spermatidogenesis .
3) spermiogenesis .

Question 7

Spermatocytogenesis is from which ————>————

Answer 7

From spermatogonium till the formation of 2ndry spermatocyte

Question 8

Spermatidogenesis from ——>——-

Answer 8

Is from the 2ndry spermatocyte till formation of spermatid

Question 9

Spermiogenesis is from ———>———

Answer 9

Is the formation of sperm from spermatid

Question 10

In spermatocytogeneisis primary spermatocyte is produced due to which type of division

Answer 10

Spermatogonium undergoe mitosis producing primary spermatocyte

Question 11

Primary spermatocyte no of chromosome

Answer 11

2n diploid 46 chromosome s

Question 12

Which stage of spermatogenesis undergoes meiosis 1

Answer 12

1ry spermatocyte —-> meiosis 1 —-> 2ndry spermatocyte 1n 2 c
2n 4 c

Question 13

2ndry spermatocyte no of chromosome

Answer 13

23 ch 2c , undergoe meiosis 2
So each one will produce 2 spermatid with 23 ch and 1 c

Question 14

No of chromosome and chromatids in each stage

Answer 14

Question 15

Define spermiogenesis

Answer 15

Is the maturation of spermatid

Question 16

Spermiogenesis is under the influence of which hormone

Answer 16

Is under the influence of testosterone.

Question 17

Spermatid structural changes during spermiogenesis

Answer 17

1 ) axoneme forms
2) Golgi apparatus become the acrosome
3) centrioles become the tail
4) DNA BECOME HIGHLY CONDENSED
40 EXCESSIVE CYTOPLASM IS REMOVED FROM THE SPERM S RESIDUAL BODIES .

Question 18

Define spermiation

Answer 18

Is the release of mature spermatozoa from the Sertoli cells to the lumen of the seminefrous tubules .

Question 19

Sperm structure

Answer 19

1 ) head
2) body
3) tail

Question 20

Sperm acrosome is within which structure of the sperm

Answer 20

Head

Question 21

Mitochondria of the sperm is placed

Answer 21

In the body or the mid piece of the sperm .

Question 22

When does GNRH release start at which age

Answer 22

At the age of 10

Question 23

What does GNrH release leading to

Answer 23

It leads to production of FSH and LH.

Question 24

Fsh works on and what does stimulate

Answer 24

It works on the seminefrous tubules
Stimulating spermatogenesis

Question 25

LH works on which cells ‘leading to production of

Answer 25

LH works on the leyding cells Leads to testosterone production .

Question 26

Testosterone effect on LH and GNrH

Answer 26

Inhibit LH and GNrH

Question 27

Inhibin is secreted by

Answer 27

Sertoli cells

Question 28

When does secretion of inhibin stimulated

Answer 28

When there is increased number of spermatozoa it goes and inhibits the FSH .

Question 29

Semen is combination of 4 secretion of

Answer 29

1 seminal vesicles 2 prostate 5gland 3 bulbourethral gland coppers gland 4 hyaluronidase ( aids passage of the sperm through Cervical mucous .

Question 30

Function of hyalurinadse

Answer 30

AIDS passage of the sperm through the Cervical mucous .

Question 31

Normal seminal fluid volume is Each ml of seminal fluid how many sperms does it contain What’s the normal range Total sperms per ejaculate Vitality % Leucocytes PH No of sperms produced per day Total motility ; progressive motility Normal morphology

Answer 31

Volume 1.5 ml rang 1.4-1.7 ml Each ml should contain 50 - 150 million normal > 15 million , 12-16 million Total sperms per ejaculate 39 million Nl 33-46 million Vitiating >55% Leucocytes < 1million/ml Ph 7.2 —7.6 Total motility > 39% , with progressive motility of > 31 % Normal morphology > 3% Sperm produced per day 300 million .

Question 32

Spermatozoa lives for

Answer 32

3-4 days

Question 33

Seminal fluid composition 6 elements CIGPFc CCGffI

Answer 33

Carnithin Citric acid Glycerphosphocholine Fructose phosphate Insositol

Question 34

Where does semen coagulates

Answer 34

In the vagina

Question 35

What happen to the glycoproteins molecules in the sperm while passage into Cervical pathway

Answer 35

The arrange in parallel line

Question 36

Where does sperm make a reservoir in the female tract

Answer 36

At the Cervical crypt .

Question 37

Define capacitation

Answer 37

Is the biochemical removal of the sperm surface glycoproteins .

Question 38

Capacitation lead to what changes in the sperm tail

Answer 38

It leads to initiation of whiplash movement of sperm tail

Question 39

Where does capacitation occurs

Answer 39

In the uterus by uterine fluids

Question 40

Acrosome l reaction goal

Answer 40

It allow the sperm to penetrate the zuna pellucida of the ovum .