Male Anatomy

Question 1

What are the main parts of the male reproductive system?

Answer 1

Testes
Penis
Seminal vesicle 
Vas deferens 
Epididymis

Question 2

What are the layers of the testis?

Answer 2

Tunica vaginalis

• parietal layer
• cavity
• visceral layer

Tunica albuginea

Seminiferous tubules

Question 3

What is a hydrocele?

Answer 3

Cavity of the tunica vaginalis fills with fluid

Question 4

What arteries supply the testis?

Answer 4

Testicular artery + branches of cremasteric

Question 5

What veins drain the testis?

Answer 5

Pampiniform plexus -> testicular vein

Question 6

What lymph nodes do the testis drain to?

Answer 6

Lumbar + para-aortic

Question 7

What is the path of sperm through the testis?

Answer 7

Produced by Sertoli cells in seminiferous tubules

Pass through rete testis

Pass though efferent vesicles into head of epididymis

Passes through epididymis

Enters vas deferens

Question 8

What are the main cell types in the seminiferous tubules?

Answer 8

Sertoli

Leydig

Question 9

What is the role of Sertoli cells?

Answer 9

Support maturation of spermatozoa

Question 10

Where are Sertoli cells found?

Answer 10

Lining the seminiferous tubules

Question 11

What is the role of Leydig cells?

Answer 11

Produce testosterone

Question 12

What are the layers of the spermatic cord?

Answer 12

External spermatic fascia
Cremasteric fascia
Internal spermatic fasica

Question 13

What are the 3 arteries found in the spermatic cord?

Answer 13

Testicular artery - internal
Vas artery - internal
Cremasteric artery - cremaster

Question 14

What 3 veins are found in the spermatic cord?

Answer 14

Pampiniform plexus - internal
Vas vein - internal
Cremasteric vein - cremaster

Question 15

What 3 nerves are found in the spermatic cord?

Answer 15

Vas nerve - internal
Cremasteric nerve - cremaster
Ilioinguinal nerve - outside spermatic cord

Question 16

What other structures are found in the spermatic cord?

Answer 16

Vas deferens

Lymph nodes

Question 17

What is the action of the cremasteric muscle?

Answer 17

Controls height of testis - maintain temp

Question 18

What are the layers of the scrotum?

Answer 18

Skin
Dartos muscle
Spermatic cord

Question 19

What is the action of the dartos muscle?

Answer 19

Wrinkles skin to prevent heat loss

Question 20

What arteries supply the scrotum?

Answer 20

Anterior scrotal - from external pudendal

Posterior scrotal - from internal pudendal

Question 21

What veins drain the scrotum?

Answer 21

Anterior + posterior scrotal veins

Drain into external pudendal vein

Question 22

What lymph nodes drain the scrotum?

Answer 22

Superficial inguinal nodes

Question 23

What are the areas of the prostate?

Answer 23

Peripheral zone
Central zone
Transitional zone
Anterior region

Question 24

What area of the prostate does cancer tend to occur?

Answer 24

Peripheral zone

Question 25

What area of the prostate does BPH tend to affect?

Answer 25

Transitional zone

Question 26

What artery supplies the prostate?

Answer 26

Prostatic artery - from internal iliac

Question 27

What vein drains the prostate?

Answer 27

Prostatic venous plexus - drains into internal iliac vein

Question 28

What are the different ejaculatory ducts?

Answer 28

Prostate Seminal vesicle Bulbourethral

Question 29

What does the prostate produce?

Answer 29

Prostatic enzymes

Question 30

What is the function of prostatic enzymes?

Answer 30

Break down clotting factor | Ensure semen remains liquid

Question 31

What does the seminal vesicle produce?

Answer 31

Alkaline fluid Fructose Prostaglandins

Question 32

What is the function of the alkaline fluid?

Answer 32

Neutralise male urethra + vagina

Question 33

What is the function of the fructose?

Answer 33

Energy for spermatozoa

Question 34

What is the function of prostaglandins?

Answer 34

Suppress female immune response

Question 35

What is the bulbourethral gland also known as?

Answer 35

Cowper's gland

Question 36

What does the bulbourethral gland produce?

Answer 36

Glycoproteins

Question 37

What is the function of glycoproteins?

Answer 37

Expel urine | Lubrication

Question 38

What are the parts of the penis?

Answer 38

Root - fixed in superficial perineal pouch Body - suspended from pubic symphysis Glans - expansion of corpus spongiosum - contains external urethral sphincter

Question 39

Where does the neurovascular bundle lie in the glans?

Answer 39

On the dorsal surface

Question 40

What makes up the neurovascular bundle in the penis?

Answer 40

Dorsal nerve Dorsal artery Deep dorsal vein

Question 41

What are the 2 tissue types in the penis?

Answer 41

Corpus spongiosum | Corpus cavernosum

Question 42

Where does the corpus spongiosum lie?

Answer 42

Around urethra

Question 43

Where does the corpus cavernosum lie?

Answer 43

Either side of the urethra

Question 44

Which tissue is the erectile tissue?

Answer 44

Corpus cavernosum

Question 45

What arteries supply the penis?

Answer 45

Dorsal artery Cavernous artery Bulbourethral artery All originate from internal pudendal

Question 46

What is the nerve supply to the penis?

Answer 46

S2-4 Pudendal = sensory + sympathetic Periprostatic plexus = parasympathetic

Question 47

What is the function of the penis?

Answer 47

Expulsion of urine | Deposition of sperm in female genital tract

Question 48

How is an erection initiated?

Answer 48

Parasympathetic stimulation leads to vasodilation in penile arterioles and compression of veins results in erection