THE TESTES AND EPIDIDYMIS Flashcards Preview

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Flashcards in THE TESTES AND EPIDIDYMIS Deck (32)
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1

what are the testes and epididymis?

paired structures, located within the scrotum

2

function of testis?

site of sperm production and hormone synthesis

3

function of epididymis?

storage of sperm

4

where are the testis?

The testes are located within the scrotum

5

where are the epididymis in relation to the testis?

the epididymis situated on the posterolateral aspect of each testicle (within scrotum)

6

which testicle is lower?

left

7

where are the testicles suspended from?

suspended from the abdomen

8

what are the testicles suspended from the abdomen by?

by the spermatic cord

9

what are the spermatic cords?

collection of vessels, nerves and ducts that supply the testes

10

originally, where are the testis located?

posterior abdominal wall

11

what happens to the testis during embryonic development?

they descend down the abdomen, and through the inguinal canal to reach the scrotum

12

what do the testis carry as they descend?

They carry their neurovascular and lymphatic supply with them

13

what shape are the testis?

ellipsoid shape

14

what do the testis consist of?

a series of lobules, each containing seminiferous tubules supported by interstitial tissue

15

what are produced in the seminiferous tubules?

Spermatozoa

16

where do the developing sperm travel? collecting in?

through the tubules, collecting in the rete testes

17

what transport the sperm to rete testes?

Ducts known as efferent tubules

18

why do sperm need to be transported to the rete testes?

to be taken to the epididymis for storage

19

how many coverings do the testes have and what are they?

The testes have two coverings
tunica vaginalis (outer)
tunica albuginea (inner)

20

where is the tunica vaginalis situated?

externally

21

what do the tunica vaginalis cover?

covering the anterior surface and sides of each testicle

22

what is the tunica vaginalis derived from?

abdominal peritoneum during development

23

what is the tunica albuginea?

a fibrous capsule that encloses the testes

24

where does the tunica albuginea penetrate into?

the parenchyma of each testicle, dividing it into lobules

25

what does the epididymis consist of?

a single heavily coiled duct. It can be divided into three parts; head, body and tail

26

what is the head of the epididymis?

The most proximal part of the epididymis

27

what is the head of the epididymis formed by?

the efferent tubules of the testes

28

what is the function of the head of the epididymis? (function of efferent tubules of testes - head)

transport sperm from the testes to the epididymis

29

what forms the body of the epididymis?

by the heavily coiled duct of the epididymis

30

where is the tail of the epididymis?

The most distal part of the epididymis