Male Repro

Question 1

State the internal genital organs of the male reproductive system (7)

Answer 1

Testes
Epididymides 
Vas deferentes
Seminal vesicles 
Ejaculatory ducts 
Prostate 
Bulbourethak glands

Question 2

What divides the scrotum into two

Answer 2

A midline septum

Question 3

What is the name of the smooth muscle contained in the superficial fascia of the scrotum. What does it do?

Answer 3

Tunica dartos

Regulates the temperature of the testes by expanding and contracting (alters SA to change amount of heat loss)

Question 4

Why are the testes contained within the scrotum

Answer 4

Function better at lower temperature

Question 5

What’s the name of the think fibrous capsule that surrounds each testis? What do they do

Answer 5

Tunica Albuginea

Have projections from the inner surface of the capsule that form septa, that divide the testis into lobes

Question 6

What is the shape of testes

Answer 6

Flattened egg shape

Question 7

How do seminiferous tubules link up to the epididymus?

Answer 7

Each lobule of the testis contain several seminiferous tubules, that open into a network of tubes called the rete testes - efferent ductules - epididymus

Question 8

What is the function of seminiferous tubules?

Answer 8

Site of meiosis, where spend is produced

Question 9

What lies adjacent to the seminiferous tubules, that produces hormones? What hormones are produced when stimulated by LH?

Answer 9

The interstitial cells of Leydig

Androgens, testosterone, androstenedione, dehydroepiandrosterone

Question 10

What is the role of the gubernaculum

Answer 10

Aid the movement of testes into the scrotum at or near birth.

Question 11

What is the arterial supply of the scrotum?

Answer 11

Posterior scrotal arteries - terminal branches of the internal pudendal

Anterior scrotal arteries - terminal branches of the external pudendal - branches of femoral artery

Question 12

State the 3 layers of fascia that cover the cord

Answer 12

Internal spermatic fascia
Cremasteric fascia
External spermatic fascia

Question 13

What is the epididymus and where is it located

Answer 13

Posterior to the testes

Highly coiled tube (increase SA)

Transports, stores and matures sperm cells

Question 14

Where is the vas deferens and what is its function?

Answer 14

Joins the tail end of the epididymus

Thick walled tube
Transports mature sperm to urethra ready for ejaculation

Question 15

What are seminal vesicles?

Answer 15

Sac-like pouches that attach to the vas deferens near the base of the bladder

Produce fructose for energy for spermatic (more motility)

Question 16

What are ejaculatory ducts?

Answer 16

Formed from the merging of seminal vesicles and the vas deferens

Pierces the posterior aspect of the prostate gland

Question 17

What is the prostate? And it’s function

Answer 17

An encapsulated organ that consists of glandular tissue embedded in a fibromuscular stroma

Prostatic secretions are drained by ducts - open into the prostatic urethra.

Secretes acidic prostatic fluid which makes up 20-30% of the semen

Question 18

What are the bulbourethral glands?

Answer 18

Small glands located at the base of the penis

Covered by fascia of urogenital diaphragm

Their ducts empty into the urethral lumen

Secretions are added to the seminal fluid, unknown function of fluid

Question 19

What two things does the penis consist of?

Answer 19

The root and a mobile body

Question 20

What three masses of erectile tissue does the root consist of?

Answer 20

Bulb of penis, right and left crura