Histology Of The Male Reproductive Tract

Question 1

What is the average testis

Answer 1

15-19g

Question 2

What makes up the tunica vaginalis

Answer 2

Flattened layer of mesothelial cells

Question 3

What is tunica albuginea made up of

Answer 3

Collagen fibres with some fibroblasts, myocytes and nerve fibres

Question 4

What makes up the tunica vasculosa

Answer 4

Loose connective tissue containing blood vessels and lymphatics

Question 5

What is testicular parenchyma divided into

Answer 5

Lobules by a septa originating from the capsule

Question 6

What do seminiferous tubules contain

Answer 6

Germ cells in varying stages of maturation and Sertoli cells

Question 7

What are the characteristics of a type B differentiating progenitor cells

Answer 7

Spherical nucleus
Densely stained masses of chromatin

Question 8

What are the characteristics of a type A differentiating progenitor cells

Answer 8

Darkly stained stem cells
Pale stained cells

Question 9

What are the characteristics of Sertoli cells

Answer 9

Columnar cells on the basement membrane of the tubule

Send cytoplasmic projections around germ cells

Nuclei are irregular shape
Folded
Prominent nucleolus

Question 10

What functions do Sertoli cells have

Answer 10

Supportive
Phagocytic
Secretory

Question 11

What makes up a spermatozoa

Answer 11

Head containing acrosomal cap and nucleus
Midpiece containing spiral mitochondria
Tail containing neck with centrioles, axoneme and plasma membrane

Question 12

Where are leydig cells found

Answer 12

They present singly and in clusters in the interstitium between the tubules

Question 13

What is the function of leydig cells

Answer 13

Produce testosterone

Question 14

What is rete testis

Answer 14

Anastomosing network of tubules at the hilum of the testis

Question 15

What tissue type lines the rete testis

Answer 15

Simple squamous or low columnar epithelium on a thick basement membrane

Question 16

What is present in the rete testis luminal surface

Answer 16

Cilia

Question 17

Where do convoluted tubules empty into

Answer 17

The epididymis

Question 18

What tissue are the efferent ducts lined by

Answer 18

Ciliated and non-ciliated simple columnar epithelium with inter spread cuboidal basal cells which give a pseudostratified appearance

Question 19

What is the epididymis

Answer 19

A tubular structure which is about 4-5cm long

Question 20

What tissue lines the epididymis

Answer 20

Tall columnar cells with atypical cilia supported by a thick basement membrane

Question 21

Where can you find the vas deferens

Answer 21

Arises from the caudal portion of epididymis

Question 22

What tissue lines the vas deferens

Answer 22

Pseudo-stratified columnar epithelium comprised of columnar and basal cells

Question 23

What is a characteristic of the vas deferens

Answer 23

Thick muscular wall made up of 3 layers

Question 24

What is the prostate

Answer 24

A pear shaped glandular organ

Question 25

What does an average prostate weigh

Answer 25

20g

Question 26

Where is the prostate located

Answer 26

Surrounds the neck of the bladder and the prostatic urethra

Question 27

What lobes make up the prostate

Answer 27

Anterior, middle, posterior and 2 lateral lobes

Question 28

What are acini

Answer 28

Tubuloalveolar glands with convoluted edges

Question 29

What lines the acini

Answer 29

They are lined by the secretory cells, basal cells and neuroendocrine cells

Question 30

Where are the secretory cells located in the acini

Answer 30

They are located in the luminal side of the glands

Question 31

What makes up the stroma of the prostate

Answer 31

Smooth muscle Fibroelastic fibres Blood vessels Nerves

Question 32

What are and where are seminal vesicles located

Answer 32

Paired highly coiled tubular structures found posterolateral to the bladder

Question 33

Where do seminal vesicles empty into

Answer 33

Ejaculatory ducts

Question 34

What tissue lines the seminal vesicles

Answer 34

Tall non-ciliated columnar epithelium

Question 35

The erectile tissue is arrange into 3 components what are they

Answer 35

Left and right corpora cavernosa on the dorsal side and the corpus spongiosum on the inferior side

Question 36

What does erectile tissue comprise of

Answer 36

Irregular vascular spaces seperated by fibroelastic tissue and smooth muscle with a rich nerve supply

Question 37

Where is the bulk of the seminal fluid produced

Answer 37

Prostate, seminal vesicles and coppers glands produce most of the seminal fluid

Question 38

What tissue is this

Answer 38

Testicular parenchyma

Question 39

What is this showing

Answer 39

The testis

Question 40

What are the different arrows pointing to

Answer 40

Top arrow = spermatozoon Second arrow = spermatid Third arrow = secondary spermatocyte Forth arrow = primary spermatocyte Fifth arrow = spermatogonia Sixth arrow = type b differentiating progenitor cell

Question 41

What is the arrows pointing to

Answer 41

Sertoli cells

Question 42

What is this showing

Answer 42

Leydig cells

Question 43

What is this showing

Answer 43

Epididymis

Question 44

What is this showing

Answer 44

Vas deferens

Question 45

What is this showing

Answer 45

Ducts and acini of the prostate

Question 46

What is this showing

Answer 46

Stroma of the prostate

Question 47

What is this showing

Answer 47

Seminal vesicles

Question 48

What is this tissue showing

Answer 48

Erectile tissue of the penis