Histology of the male reproductive system

Question 1

The tunica albuginea is made up of which type of tissue?

Answer 1

Dense connective tissue

Question 2

What is the inner part of the tunica albuginea called?

Answer 2

Tunica vasculosa

Question 3

Tunica vasculosa is made up of which type of tissue?

Answer 3

Loose connective tissue

Question 4

Each testis is divided into approximately how many lobules?

Answer 4

250

Question 5

Each lobule of the testis consists of how many seminiferous tubules?

Answer 5

One to four

Question 6

What are the two basic cell populations found in te seminiferous tubules?

Answer 6

Sertoli cells and spermatogenic cells

Question 7

Which cells of the testes replicate and become mature sperm?

Answer 7

Spermatogenic cells

Question 8

Which cells give the seminiferous tubules structural organization?

Answer 8

Sertoli cells

Question 9

Which are the most immature spermatogenic cells?

Answer 9

Spermatogonia

Question 10

Which are the most mature spermatogenic cells?

Answer 10

Spermatids

Question 11

Tunica (lamina) propria or peritubular tissue is a multilayered connective tissue that lacks what?

Answer 11

Fibroblasts

Question 12

Instead of fibroblasts, which cells are found in the tunica propria?

Answer 12

Myoid cells (peritubular contractile cells)

Question 13

What type of fibers are in the tunica propria?

Answer 13

Collagen

Question 14

The tunica propria (thickens/thins) as men age.

Answer 14

Thickens

Question 15

Where are Leydig cells located?

Answer 15

In the connective tissue stroma of the testis

Question 16

What is the function of Leydig cells?

Answer 16

Secretion of testoterone

Question 17

What is spermatogenesis?

Answer 17

The process by which spermatogonia develop into sperm

Question 18

What are the three distinct phases of spermatogenesis?

Answer 18

Spermatogonial phase, spermatocyte phase, spermatid phase

Question 19

Which phase of spermatogenesis involves only mitosis?

Answer 19

Spermatogonial phase

Question 20

Which phase of spermatogenesis involves two meiotic divisions?

Answer 20

Spermatocyte phase

Question 21

Which phase of spermatogenesis involves differentiation of spermatids into mature cells?

Answer 21

Spermatid phase (spermiogenesis)

Question 22

What are the three classifications of spermatogonia based on appearance of nuclei in routine histologic preparations?

Answer 22

Type A dark (Ad)
Type A pale (Ap)
Type B

Question 23

Which type of spermatogonia is committed to the differentiation process that produces sperm?

Answer 23

Ap spermatogonia

Question 24

Which type of spermatogonia produces either Ad or Ap spermatogonia?

Answer 24

Ad spermatogonia

Question 25

Which type of spermatogonia represent the last event in the spermatogonial stage?

Answer 25

B spermatogonia

Question 26

The mitotic division of which type of spermatogonia produces primary spermatocytes?

Answer 26

B spermatogonia

Question 27

What is the chromosomal number of each primary spermatocyte?

Answer 27

2n

Question 28

What is the amount of DNA in each primary spermatocyte?

Answer 28

4d

Question 29

What is the chromosomal number of secondary spermatocytes?

Answer 29

n

Question 30

What is the amount of DNA in secondary spermatocytes?

Answer 30

2d

Question 31

What is the chromosomal number of spermatids?

Answer 31

n

Question 32

What is the amount of DNA of spermatids?

Answer 32

d

Question 33

Spermatids multiply by mitosis. T/F

Answer 33

F Spermatids differentiate into sperm. They result from meiosis of secondary spermatocyte.

Question 34

The phases of spermiogenesis occur while the spermatid is attached to the Sertoli cell plasma membrane. T/F

Answer 34

T

Question 35

What are the four phases of spermiogenesis?

Answer 35

Golgi phase, Cap phase, Acrosome phase, Maturation phase

Question 36

How long does spermatogenesis take?

Answer 36

Approximately 74 days

Question 37

Sertoli cells are (squamous, cuboidal, coulmnar).

Answer 37

Columnar

Question 38

The efferent ductules are lined with which type of tissue?

Answer 38

Pseudostratifiesd comulnar epithelium

Question 39

The ductus deferens is lined with which type of tissue?

Answer 39

Pseudostratified comulnar epithelium

Question 40

``` The storage site of spermatozoa is located in which structure A. seminal vesicles B. ductus efferentes C. epididymis D. prostate ```

Answer 40

C

Question 41

Structures known for their scalloped appearance histologically?

Answer 41

-ductuli efferentes

Question 42

How are spermatogonia type-B cells different from other spermatogonia?

Answer 42

-They undergo meiosis

Question 43

What are the basal lamina cells called? A. Leydig B. Sertoli C. Spermatozoa D. Spermatid

Answer 43

B

Question 44

In which of the ff. segments does sperm maturation occur? A. Vas deferens B. Head of epididymis C. Corpus of epididymis D. Seminiferous tubule

Answer 44

C

Question 45

The prostate produces the following seminal fluid vesicle components: A. Corpora amylacea B. Flavins C. Citrate D. Fructose

Answer 45

C

Question 46

Which feature helps you to differentiate spermatogonia from the rest of the seminiferous cells? A. Dome-shaped cells B. Nearer in lumen C. Condensed chromatins D. Notched, irregular nucleus

Answer 46

A

Question 47

``` Which of the following is lined by small Sertoli cells? A. Vas deferens B. Tubuli recti C. Prostate D. Seminal vesicle ```

Answer 47

B

Question 48

``` What is the predominant estrogen receptor in males? A. ER- B. ER-β C. Estrogen Tyrosine Kinase D. SRC ```

Answer 48

B

Question 49

Aside from Leydig cells,which of the following cells most likely contribute to the increased levels of estrogen from the rete testis and caput of the epididymis? A. Sertoli cells B. Rete testis columnar epithelial cells C. Epididymal pseudostratified columnar epithelial cells (di sure) D. Spermatids

Answer 49

C