Pelvis 1 testis, epididymis spermatic cord Flashcards Preview

MD3002 post MSA > Pelvis 1 testis, epididymis spermatic cord > Flashcards

Flashcards in Pelvis 1 testis, epididymis spermatic cord Deck (57):
1

where do the testes migrate

from posterior abdominal wall through the anterior abdominal wall into the scrotum

2

what do the testes take when they migrate

vas, testicular vessels, peritoneal pouch (processus vaginalis) which becomes the tunica vaginalis

3

what structure shrinks in order to draw the testes down the posterior abdominal wall to the inguinal canal and through the canal

gubernaculum

4

what is cryptochidism

failure of descent

5

what happens if the processus vaginalis remains open

indirect inguinal hernia aka hydrocele

6

what is the female equivalent of the spermatic cord

round ligament which travels in the inguinal canal

7

what does the inguinal canal contaiun

spermatic cord or round ligament, ilioinguinal nerve and genital branch of the genital femoral nerve

8

what makes up the cremasteric (middle) fascia and muscle

transversus abdominis and internal oblique

9

what forms the external spermatic fascia

external oblique

10

what vessels are found in the spermatic cord

testicular artery and pampiniform plexus
artery to vas
cremasteric artery

11

what tubes are found in the spermatic cord

vas, lymph vessels and processus vaginalis

12

what nerves are found in the spermatic cord

genital branch of the genitofemoral nerve
sympathetic
ilioinguinal

13

where does the testicular artery branch from

aorta at L2

14

where does the pampiniform plexus of veins drain to

left to left renal
right to IVC

15

what does the vas artery branch from

inferior vesical

16

what does the cremasteric artery come from

inferior epigastric

supplies cremasteric fascia and muscle

17

where does testicular lymph drain

para aortic nodes

18

what is the cremaster reflex

ipsilateral testicular retraction on stroking the upper medial thigh

19

what nerve supplies the cremasteric reflex

L1 cremaster reflex

20

what splanchnic nerve supplies the sympathetic to testes

lesser splanchnic -T10-11

so referred pain is peri umbilical

21

what is value of the ilioinguinal nerve

L1 to medial thigh

22

what type of hernia is lateral to the inferior epigastric vessels

indirect inguinal

23

what muscle is found in the scrotum

dartos
smooth muscle
sympathetic fibres in gen branch of genfem

24

what are the layers of the scrotum

tunical vaginalis (visceral and parietal)
internal, cremasteric and external spermatic fascia
dartos fascia
(colles fascia + dartos muscle from campers)
skin

25

what is camper's fascia replaced by

dartos muscle in the scrotum

26

what does scarpa's fascia become

colles'. fuses with fascia lata of the thigh below the inguinal ligament and also with the perineal body

27

what is the perineal body

central tendon of the perineum, fibromuscular mass between the UG triangle and anal triangle

28

what is the nerve supply of the anterior third of the scrotum

ilioinguinal and genfem
L1

29

what is the nerve supply of the posterior 2/3rds of the scrotum

scrotal branches of the perineal branches of the pudendal nerve
S2 and 3

30

what is the blood supply of the anterior scrotum

deep and superficial external pudendal branches of the femoral artery

31

what is the blood supply of the posterior testes

branches of the internal pudundal branches of the internal pudendal branch of the internal iliac posteriorly

32

what is the venous drainage of the anterior scrotum

deep and superficial external pudendal veins to the great saphenous vein

33

what is the posterior scrotum venous drainage

internal pudendal veins

34

what is the lymph drainage of the scrotum

superficial inguinal nodes

35

describe the oblique lie of the testicle

upper pole is ant-lat, lower pole is post-med

36

where is the epididymis

post lat and vas is post med

37

how long is the epididymis

6m

38

how does the testicle rotate in testicular torsion

around the pedicle

39

what is the function of the tunica albuginea

maintains internal pressure to help transport of sperm

40

what is the appendix epididymis

a remnant of the proximal end of the mesonephric duct

41

what is appendix testis and prostatic utricle

remnant of the paramesonephric duct

42

what structure forms the mediastinum and septae

albuginea

43

what does the vasculosa contain

branches of the testicular vessels

44

where is testicular referred pain

periumbilical

45

how long is the vas

45 cm

46

describe the course of the vas

posterior to the testis and medial to the epididymis, it leaves the scrotum and passes through the abdominal wall within the spermatic cord in the inguinal canal. it emerges into the abdomen lateral to the inferior epigastric artery and then lies on the lateral wall of the pelvis medial to the pelvic vessels, before turning medially to pass anteromedial to the ureter in front of the rectum and join with the duct from the seminal vesicle to form the ejaculatory duct that passes through the prostate and into the urethra

47

what sphincter contracts at ejaculation in order to prevent backflow of semen

internal

48

where are the seminal vesicles

lie just above the prostate gland, sandwiched between the bladder and the rectum

49

what forms the ejaculatory duct

the vas and the seminal vesicle
it passes through the prostate and combines with the urethra

50

what sphincter contracts during ejaculation

the internal sphincter

51

where are the openings of the ejaculatory ducts

just below the prostatic utricle on either side

52

what is the veru montanum

the raised part of the prostatic urethra which serves as a landmark for the openings of the ejaculatory ducts

53

what are the branches of the pudendal nerve

inferior rectal nerve
perineal nerve
dorsal nerve of penis or clitoris

54

describe the blood and nervous supply to the posterior scrotum

blood- internal pudendal branch of the femoral artery
nerve- scrotal branch of the perineal branch of the pudendal nerve, S2 and 3

55

describe the blood and nervous supply to the anterior scrotum

blood- external pudendal from femoral artery
nerve- ilioinguinal and gen fem L1

56

why is testicular pain referred peri umbilically

lesser splanchnic nerve supply from T10-11

57

what are the origins of the layers of the scrotum

dartos- subcutaneous tissue
ext. sper. fascia - external oblique
cremasteric- internal oblique
int. sperm. fascia- trans. abdo
tunica vaginalis - peritoneum