Male reproductive organs

Question 1

How are the testes connected to the abdomen-pelvic cavity?

Answer 1

Via the Inguinal canal

Question 2

What is the layers of the testes?

Answer 2

Most inner:Tunica vaginalis

• Peritoneal
• Visceral

Contains fluid in the middle- lubricates the testes

Tunica Albuginea- fibrous capsule which encloses the testes.
-It penetrates into the parenchyma and divides into lobules

Question 3

Blood supply to the testes?

Answer 3

Testicular arteries

• From the abdominal aorta at level L2
• travel retroperitoneally and cross the ureters and the external iliac arteries

Question 4

Venous drainage of the testes

Answer 4

The pampiniform complex

Question 5

where do the right and left testicular vein drain

Answer 5

RIght- into the IVC

Left- into the left renal artery

Question 6

what is the lymphatic drainage of the testes

Answer 6

• Right/left lumbar nodes

- Pre-aortic lymph nodes

Question 7

what causes a varicocele?

Answer 7

dilatation of the pampiniform network

Question 8

What makes up the scrotum?

Answer 8

• Testis
• Epidydimis
• Spermatic cord

Question 9

What are the main muscles of the scrotum?

What are their function?

Answer 9

• Cremasteric
• Dartos muscle

Wrinkles up the skin to regulate skin temperature

Question 10

What is the inguinal canal made up of?

Answer 10

The spermatic cord which contains:

• The vas deferens
• The testicular artery
• The genital branch of Genito-femoral artery

Question 11

anatomy of the vas deferens

Answer 11

• Begins at the tail of the epididymis

- Ends at the seminal vesicles by releasing its contents into the ejaculatory ducts

Question 12

Cells of the epididymis

Answer 12

• The seminiferous tubules are lined with Sertoli cells which aid the maturation of the spermatozoa
• The seminiferous tubules are supported by intersistial tissue which is lined with LEYDIG Cells which are responsible for producing Testosterone
• Spermatozoa are produced in the seminiferous tubules. The developing sperm travels through the tubules, collecting in the rete testes.
• Ducts known as efferent tubules transport the sperm from the rete testes to the epididymis for storage and maturation.

Question 13

Where are the seminal glands located?

Answer 13

Between the bladder fundus and the rectum

Question 14

what does the seminal gland converge with and what happens?

Answer 14

converges with the VAS DEFERENS to form the ejaculatory duct

Question 15

where is the prostate gland located?

Answer 15

o Below the neck of the bladder (lower part) and surrounds the prostatic urethra
o The levator ani muscles lie inferolaterally

Question 16

what happens when you have an enlarged prostate?

Answer 16

Projects into bladder and distorts urethtra- can lead to urine retention

Question 17

Lymphatic drainage of the prostate

Answer 17

• internal iliac

- sacral

Question 18

Lymphatic drainage of the seminal vescicles

Answer 18

• external iliac- superior

- internal iliac- inferior

Question 19

lymphatic drainage of penis

Answer 19

• superficial inguinal

- internal iliac- glands and spongy urethra