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L6 , Gametogenesis , Embryology

L6 , Gametogenesis , Embryology 


Lecture video Part 1


Part 1 Data

Lecture video Part 2



Part 2 Data

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 MCQ  


1-The embryology is the science that deals with development of embryo in ........

a-Prenatal period

b-Postnatal period

c-Adulthood period

d-All of the above

e- a + b only


2-The embryonic period extends from: .............

a-Beginning of 3 week to beginning the 8th week

b-Beginning of 3rd week to end the 8 th week

c-End of 3rd week to beginning the 8 th week

d-End of 3 rd week to end the 8th week

e-End of 2nd week to beginning the 8th week


3-Concerning the stages of spermatogenesis, all are true except one:...

a-Spermatogonia divides by mitosis into two cell types A and B 

b-Spermatogonia B increases in size to form primary spermatocytes

c-The primary spermatocytes divides by mitosis into secondary spermatocyte 

d-The secondary spermatocytes divides by 2nd meiotic division into spermatids

e-Each spermatid contains 23 chromosomes


4-Which of the following cells does not contain 23 chromosomes:........

a-Primary spermatocyte

b-Secondary spermatocyte

c-Spermatid

d-Sperm

e-1" polar body



5-The sperm acquires full motility in :......

a-Testis

b-Head of epididymis

C-Body of epididymis

d-tail of epididymis

e-Vas deferens


6-The maximum life span of sperms in female genital tract are:.......

a-12-24 hours

b-24-36 hours

c-24-48 hours

d-48-72 hours

e-More than 72 hours


7-The secretions in the semen are derived from:.......

a-Seminal vesicles 

b-Prostate

c-Bulbourethral glands

d-All of the above

e- a + b only


8-The main bulk of semen is derived from.......

a-Testis

b-Prostate

c-Seminal vesicles

d-Bulbourethral glands

e-Urethral glands



9- Which gland is responsible for milky appearance of semen: .............

a-Testis

b-Prostate

c-Seminal vesicles

d-Bulbourethral glands

e-Urethral glands


10-The dead sperms in semen is called:........

a-Aspermia

b-Oligospermia

c-Necrospermia

d-Athenospermia

e-None of the above


11-The non-motile sperms are called:.........

a-Polyspermia 

b-Oligospermia

c-Athenospermia 

d-Necrospermia

e-Aspermia


12-The decreased number of sperms in semen is called:..........

a-Aspermia 

b-Oligospermia

c-Necrospermia

d-Athenospermia

e-None of the above



13-The time of spermatogenesis :...........

a-From intrauterine life to puberty

b-From intrauterine life to old age

c-From birth to puberty

d-From puberty to old age

e-From puberty and continues for life


Answer 

1-A

2-B

3-C

4-A

5-D

6-C

7-D

8-C

9-B

10-C

11-C

12-B

13-E

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