Anatomy - male reproductive system

Question 1

Root of penis - what is it

Answer 1

most proximal fixed part of penis

Question 2

Root of penis - where is it located

Answer 2

superficial perineal pouch of pelvic floor

not visible externally

Question 3

Root of penis - name the erectile tissues

Answer 3

crura x2

bulb of penis

Question 4

Root of penis - name the muscles

Answer 4

ischiocavernosus

bulbospongiosus

Question 5

Name the most proximal part of the penis?

Answer 5

Root

Question 6

Body of penis - what is it

Answer 6

free part of penis

between root and glans

Question 7

Body of penis - where is it located

Answer 7

suspended from the PUBIC SYMPHYSIS

Question 8

Body of penis - name the erectile tissues

Answer 8

corpora cavernosa x2

corpus spongiosum

Question 9

Glans of penis - what is it

Answer 9

most distal part of penis

Question 10

Glans of penis - how is it formed

Answer 10

distal expansion of corpus spongiosum

Question 11

Which part of the urethra is within the glans penis?

Answer 11

external urethral orifice

Question 12

Which part of the penis is suspended from symphysis pubis?

Answer 12

Body of penis

Question 13

Which parts of the penis have 3 masses of erectile tissue?

Answer 13

Root

Body

Question 14

Which part of the penis contains left and right crura and the bulb of the penis?

Answer 14

Root

Question 15

Which erectile tissue in the root of penis is traversed by urethra?

Answer 15

Bulb

Question 16

Left and right crura - what is their bony attachment

Answer 16

ipsilateral ischial ramus

Question 17

What do the crura form in the body of the penis?

Answer 17

corpora cavernosa

Question 18

Where are the corpora cavernosa located within the body of the penis?

Answer 18

Dorsal part of penis (anterior when flaccid)

Question 19

Where does the corpus spongiosum arise from?

Answer 19

Bulb of penis

Question 20

Bulbospongiosus muscle (root of penis) - function

Answer 20

contracts to empty spongy urethra of residual semen/urine

anterior fibres aid erection by increasing pressure in bulb

Question 21

Bulbospongiosus muscle (root of penis) - associated with which erectile tissue?

Answer 21

bulb of penis

Question 22

ischiocavernosus muscle (root of penis) - function

Answer 22

contracts to force blood from cavernous space in crura into corpus cavernosa to maintain erection

Question 23

ischiocavernosus muscle (root of penis) - associated with which erectile tissue?

Answer 23

left and right crura

Question 24

Summarise main function of muscles in root of penis?

Answer 24

Empty semen and urine

help Maintain erection

Question 25

Name the 3 layers of fascia of the erectile tissues

Answer 25

External fascia Deep fascia of penis Tunica albuginea (corpora cavernosa only)

Question 26

What fascia does the external fascia of penis extend from?

Answer 26

fascia Scarpa (covers abdominal wall)

Question 27

What fascia does the deep fascia of penis extend from?

Answer 27

deep perineal fascia

Question 28

Which fascia holds all erectile tissues together?

Answer 28

Deep fascia of the penis

Question 29

The root of the penis is supported by 2 ligaments - name them

Answer 29

Suspensory ligament | Fundiform ligament

Question 30

What is another name for the prepuce?

Answer 30

Foreskin

Question 31

What structure connects the prepuce to the glans penis?

Answer 31

Frenulum

Question 32

What is the space between prepuce and glans called?

Answer 32

preputial sac

Question 33

Name the 3 arteries that supply the penis

Answer 33

ARTERIES: Dorsal Deep bulbourethral

Question 34

Where do the arteries that supply the penis arise from?

Answer 34

Branches of: INTERNAL PUDENDAL artery which arise from: anterior branch of internal iliac artery

Question 35

Name the 2 veins in the penis

Answer 35

DEEP DORSAL VEIN | SUPERFICIAL dorsal vein

Question 36

Where does the DEEP dorsal vein of the penis drain to?

Answer 36

Prostatic venous plexus

Question 37

From where in the spinal cord does the innervation of penis arise from?

Answer 37

S2 - 4

Question 38

What supplies Sensory and sympathetic innervation of the penis?

Answer 38

Dorsal nerve of the penis

Question 39

Where does the dorsal nerve of the penis arise?

Answer 39

Pudendal nerve

Question 40

What supplies parasympathetic innervation of the penis?

Answer 40

Cavernous nerves

Question 41

Where do cavernous nerves arise from?

Answer 41

Peri-prostatic nerve plexus

Question 42

Summarise the effect of the parasympathetic system on the penis

Answer 42

vascular changes that cause erection

Question 43

Which testis typically lies lower?

Answer 43

Left

Question 44

What structure suspends the testes?

Answer 44

spermatic cord

Question 45

What structures make up the spermatic cord?

Answer 45

vessels nerves ducts

Question 46

Where do the testes descend from in their embryonic development?

Answer 46

posterior abdominal wall

Question 47

What do the testes carry with them when they descend from the posterior abdominal wall?

Answer 47

neurovascular and lymphatic supply

Question 48

The testes consist of a series of lobules, what do they contain?

Answer 48

seminiferous tubules

Question 49

Sertoli cells do what?

Answer 49

aid maturation process of spermatozoa

Question 50

Leydig cells do what?

Answer 50

testosterone production

Question 51

Describe journey of developing sperm from seminiferous tubules?

Answer 51

collect in RETE TESTES EFFERENT tubules transport EPIDIDYMIS for storage and maturation

Question 52

What is the tunica vaginalis?

Answer 52

closed sac that covers the testes

Question 53

What is the function of tunica vaginalis?

Answer 53

lubricate testes for friction-free movement

Question 54

What are the 3 parts of the epididymis?

Answer 54

Head Body Tail

Question 55

Which part of the epididymus connects with the vas deferens?

Answer 55

Tail

Question 56

Innervation of testes? Where do they arise from?

Answer 56

Testicular plexus | Renal and aortic plexi

Question 57

Main arterial supply testes? Arise from?

Answer 57

Testicular arteries | direct off abdominal aorta

Question 58

Supplementary arterial supply to testes? Arise from?

Answer 58

Cremasteric artery from inferior epigastric artery | Artery of vas deferens from inferior vesical artery

Question 59

Venous drainage of testes?

Answer 59

Testicular veins from pampiniform plexus

Question 60

Where do the left and right testicular veins drain to?

Answer 60

Left - left renal vein | Right - inferior vena cava

Question 61

What is the testes lymphatic drainage?

Answer 61

Lumbar and para-aortic

Question 62

How does the testes lymphatics differ from the scrotum? Why?

Answer 62

Scrotum - SUPERFICAL INGUINAL NODES Testes - Lumbar and para-aortic Testes originally retroperitoneal organs