ANATOMY 2

Question 1

where is internal urethral orifice (male)

Answer 1

between bladder and urethra

Question 2

when does internal urethral orifice contract

Answer 2

during ejaculation to prevent retrograde ejaculation

Question 3

internal urethral sphincter is volantar/involuntary

Answer 3

involuntary

Question 4

external urethral sphincter is voluntary/involuntary

Answer 4

voluntary

Question 5

where is prostate situated

Answer 5

immediately inferior to bladder

Question 6

what is urethra called when in prostate

Answer 6

prostatic urethra

Question 7

what is below prostate

Answer 7

levator ani

Question 8

what is urethra called when in corpus spongiosum

Answer 8

spongy urethra

Question 9

what pouch is in male pelvis

Answer 9

rectovesicle pouch

Question 10

where do testes originate

Answer 10

posterior wall of abdominal cavity

Question 11

where are testes situated when born

Answer 11

scrotum

Question 12

what do testes pass through in their descent to scrotum

Answer 12

anterior abdominal wall and inguinal canal

Question 13

what structures are contained in spermatic cord

Answer 13

testicular artery
pampiniform plexus (spermatic vein)
vas deferens 
lymphatics
nerves

Question 14

what is the conjoint tendon

Answer 14

medial end of combined aponeurses of internal oblique and transversus abdominis muscles

Question 15

what does conjoint tendon do

Answer 15

anchors the muscles inferiorly to pubic bone

Question 16

what fascia covers spermatic cord

Answer 16

internal spermatic fascia
cremasteric fascia
external spermatic fascia

Question 17

what covers testes in scrotum

Answer 17

tunica vaginalis

Question 18

condition of too much fluid in tunica vaginalis

Answer 18

hydrocele

Question 19

where is sperm produced

Answer 19

seminiferous tubules

Question 20

what muscle in scrotum keeps testes at optimum temperature for spermatogenesis (1 degree below normal)

Answer 20

dartos muscle

Question 21

normal length and volume of testes

Answer 21

5cm length

12-25ml volume

Question 22

where does sperm go after seminiferous tubules

Answer 22

rete testes (posterior)

Question 23

route of sperm from rete testes

Answer 23

head then tail of epididymis
vas deferens (up spermatic cord)
through deep inguinal ring and inguinal canal
become right and left ejaculatory ducts after seminal glands
combine to make prostatic urethra
spongy urethra

Question 24

arterial supply to testes

Answer 24

lateral branches of abdominal aorta

Question 25

where does left testicular vein drain to

Answer 25

left renal vein

Question 26

where does right testicular vein drain to

Answer 26

IVC

Question 27

where are seminal glands

Answer 27

posterior surface of bladder, above prostate

Question 28

what do seminal glands secrete

Answer 28

fructose (energise sperm)

Question 29

where are bulbourethral glands and what do they do

Answer 29

below prostate | secrete mucus to lubricate urethra and neutralise acidity

Question 30

what happens in a vasectomy

Answer 30

vas deferens is transected in scrotum

Question 31

what is anatomical position of penis

Answer 31

erect

Question 32

head of penis is called what

Answer 32

glans penis

Question 33

what is swelling of glans penis and what can is be due to

Answer 33

paraphimosis | due to retraction of prepuce constricting neck of glans

Question 34

what is ridge running from anus to glans penis

Answer 34

raphe (scrotal and penile)

Question 35

what is root of penis attached to

Answer 35

ischium

Question 36

what are the 3 cylinders of erectile tissue in penis

Answer 36

``` corpus cavernosum (right and left) - posterior corpus spongiosum - anterior ```

Question 37

what do the corpus cavernosums contain

Answer 37

deep arteries of penis

Question 38

where is superficial perineal pouch

Answer 38

below perineal membrane

Question 39

what makes up root of penis

Answer 39

bulb (corpus spongiosum, crura, cavernosum)

Question 40

what muscles are associated with superficial perineal pouch (male)

Answer 40

bulbospongiusus (along penis) ischiocaernosus (from ischium, jouns to bulbospongiousus) superficial transverse perineal muscle (from inferior ischium, joins to anal sphincter)

Question 41

arterial supply to penis

Answer 41

deep arteries of penis from internal pudendal from internal iliav

Question 42

arterial supply to scrotum

Answer 42

internal pudendal artery and branches of external iliac

Question 43

where does lymph from scrotum and most of penis drain

Answer 43

superficial inguinal nodes

Question 44

where does lymph from testes drain

Answer 44

lumbar/para-aortic nodes