Histology

Question 1

Answer 1

D. Deviding spermatocyte

Question 2

Answer 2

C. Artretic Follicle

Question 3

Answer 3

E. Columnar simple epithelium

Question 4

Answer 4

C - chromophobe

Question 5

Answer 5

D. Contains a cross section of the ureter (IT’S THE URETHRA DUMBASS)

Question 6

What do the acidophils cells produce?

Answer 6

• GH
• Prolactin

Question 7

Answer 7

B - lactating mammary gland

Question 8

Answer 8

B - resting mammary gland

Question 9

Answer 9

C. Efferent duct

Question 10

Answer 10

D - FSH/LH/ACTH/TSH

Question 11

What are the phases of spermiogENESIS?

Answer 11

Phase 1: Spermatogonial
Proliferation, renewal and differentiation of spermatogonia (MITOSIS)

Phase 2: Spermatocyte

2 MEIOSIS

Phase 3: Spermatid (spermiogenesis)

Spermatids metamorphose into spermatozoa

Question 12

Answer 12

10. Leydig cell

Question 13

Answer 13

E. Luteal Phae

Question 14

What are the main characteristics of spermatogenesis?

Answer 14

• Duration: 60 days (fixed and constant)
• Stem cells enter spermatogenesis everey 16 days
• Stem cells enter spermatogenesis in groups connected by intercellular bridges
• It is HIGHLY sensitive to toxic factors such as drugs, radiation and temperature

Question 15

Answer 15

C. Seminiferous Tubule

Question 16

Which part of the excretory ducts is NOT surrounded by myoid cells (exam material)?

Answer 16

The rete testis

Question 17

What are the roles of Sertoli cells?

Answer 17

1. Supporting cells at the basement membrane
2. Promote the growth of sperms
3. Exhibit phagocytic function: helps to eliminate the residual bodies discarded by the maturing spermatids
4. Secrete luminal fluids
5. Produce anti-Müllerian hormone (AMH) and Inhibit (supresses FSH)
6. Formation of blood-testis barrier (tight junction, immuno-privelidged site)

Question 18

Which hormones are produced by the posterior (neurohypophysis) pituitary?

Answer 18

1. Vasopressine (ADH; kidneys)
2. Oxytocin (labour)

Question 19

Answer 19

A. Dark spermatogonium

Question 20

Answer 20

A. Round spermatids

Question 21

Answer 21

E - estrogen

Question 22

Answer 22

E. Primary Multilaminar Follicle

Question 23

Answer 23

A - basophil

Question 24

Inactivation of the estrogen receptor α-gene (ERKO) can cause what?

Answer 24

Infertility in males because it regulates the these pores and channels in the ductuli efferentes.

Question 25

Answer 25

A. Primary spermatocyte

Question 26

Answer 26

A - mammary alveolus

Question 27

What is the function of the epididymis?

Answer 27

To bring testicular spermatozoa to maturity because testicular spermatozoa are non-motile and incapable of fertilization

Question 28

Where can you find Herring body?

Answer 28

In the posterior (neurohypophysis) pituitary

Question 29

Answer 29

A - chromophil

Question 30

What is the primary function of interstitial (Leydig) cells?

Answer 30

Produce **testosterone**: 1. Embryo development of male fetus 2. Initiation and maintenance of spermatozoa production 3. Development of accessory organs and secondary sex characteristics 4. Secretion of accessory glands

Question 31

Answer 31

C - chromophobes and chromophils

Question 32

Answer 32

C. Cumulus Oophorus

Question 33

Answer 33

C. Primary Oocyte

Question 34

What do the basophils cells produce?

Answer 34

* ACTH * TSH * FSH * LH

Question 35

What is the excretory duct path?

Answer 35

Rete testis --\> ductuli efferentes --\> head, body then tail of epidimymis --\> vas deferens --\> urethra --\> out

Question 36

Answer 36

E. Steroli Cells

Question 37

Answer 37

E - posterior lobe

Question 38

What are the types of Spermatogenic cells?

Answer 38

1. Spermatogonia (basement membrane) 2. Spermatocytes 3. Spermatids (adluminal region)

Question 39

What is Immotile cilia syndrome?

Answer 39

A cause of infertility. It is caused by mutations in the dynein gene and in other genes encoding proteins required for flagellar and ciliar motility. This disorder is associated with chronic respiratory infections due to impaired motility of the cilia of the respiratory epithelium

Question 40

Answer 40

A. Cervix and Vagina (fornix)

Question 41

Answer 41

E - folliculistellate

Question 42

Answer 42

B. Cervical Canal

Question 43

Answer 43

E. Transformed granulosa cells

Question 44

Answer 44

B. Myoid cell

Question 45

Answer 45

B. Contains ciliated cells