Male Reproductive System Flashcards Preview

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Flashcards in Male Reproductive System Deck (86)
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1

what are the four functional components of the male reproductive system

testes, ductular system, exocrine glands, penis

2

what is the function of the testes

produce male gametes, secrete testosterone

3

what is the function of the ductular system

collect, store, conduct spermatozoa from testes

4

what is the function of the exocrine glands

produce seminal fluid

5

what is the function of the penis

the organ involved in copulation

6

the testes have two major functions, what are these generalised into

reproductive and hormonal

7

what are the testes surrounded by

by a thick capsule of connective tissue - tunica albuginea

8

there is a thick capsule of connective tissue surrounding the testes, what is this connective tissue called

the tunica albuginea

9

the testes have fibrous septae dividing them into lobules, what does each lobule consist of

lobules consist of seminiferous tubules, leydig cells, vessels and nerves

10

what is the function of the rete testis

The rete testis a network of delicate tubules located in the hilum of the testicle that carries sperm from the seminiferous tubules to the epididymis

11

roughly how many seminiferous are there and what is the aggregate length of them

800-1600 tubules with an aggregate length of around 600 metres

12

seminiferous tubules are lined by what type of epithelium

stratified complex germinative epithelium

13

what two cell types are present in the seminiferous tubules

sertoli cells and spermatogenic (germ cells)

14

what do the germ cells reproduce several times to form

to form spermatazoa

15

what is the process of germ cells producing spermatazoa called

spermatogenesis

16

what is a characteristic feature of the sertoli cells

they have a characteristic dark nucleolus that is elongated

17

why are sertoli cells sometimes referred to as nurse cells

because they preserve the correct environment for spermatogenesis

18

where is there a permanent population of sertoli cells

permanent population in outer portion of tubule

19

how does the nucleus of a sertoli cell stain

the nucleus stains pale, the nucelolus is prominent

20

what is a major role of sertoli cells

a major role is to define two separate and physiologically different compartments in the seminiferous tubule

21

how is the basal comparment near the periphery sealed off from the luminal compartment

the basal compartment is sealed off from the luminal compartment by processes of adjacent sertoli cells that reach out and make contact; where the processes are in contact they form occluding junctions

22

what cell type is present below the sertoli cell junction (basal compartment)

diploid spermatagonia

23

sertoli cells secrete factors which regulate the process of

spermatogenesis

24

sertoli cells secrete factors which regulate the function of which cell type

leydig cells

25

sertoli cells secrete inhibin which regulates the production of which hormone

fsh

26

serotli cells are involved in the phagocytosis of what

phagocytosis of discarded spermatid cytoplasm during development

27

who discovered sertoli cells and in which year

enrico sertoli in 1865

28

what is spermatogenesis

the production of male gametes

29

what is spermatogonia

primitive germ cells

30

spermatogonia are present only in ____ numbers in the male gonads before sexual maturity

small