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

Pelvis 1 testis, epididymis spermatic cord Flashcards

1
Q

where do the testes migrate

A

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

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2
Q

what do the testes take when they migrate

A

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

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3
Q

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

A

gubernaculum

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4
Q

what is cryptochidism

A

failure of descent

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5
Q

what happens if the processus vaginalis remains open

A

indirect inguinal hernia aka hydrocele

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6
Q

what is the female equivalent of the spermatic cord

A

round ligament which travels in the inguinal canal

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7
Q

what does the inguinal canal contaiun

A

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

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8
Q

what makes up the cremasteric (middle) fascia and muscle

A

transversus abdominis and internal oblique

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9
Q

what forms the external spermatic fascia

A

external oblique

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10
Q

what vessels are found in the spermatic cord

A

testicular artery and pampiniform plexus
artery to vas
cremasteric artery

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11
Q

what tubes are found in the spermatic cord

A

vas, lymph vessels and processus vaginalis

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12
Q

what nerves are found in the spermatic cord

A

genital branch of the genitofemoral nerve
sympathetic
ilioinguinal

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13
Q

where does the testicular artery branch from

A

aorta at L2

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14
Q

where does the pampiniform plexus of veins drain to

A

left to left renal

right to IVC

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15
Q

what does the vas artery branch from

A

inferior vesical

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16
Q

what does the cremasteric artery come from

A

inferior epigastric

supplies cremasteric fascia and muscle

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17
Q

where does testicular lymph drain

A

para aortic nodes

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18
Q

what is the cremaster reflex

A

ipsilateral testicular retraction on stroking the upper medial thigh

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19
Q

what nerve supplies the cremasteric reflex

A

L1 cremaster reflex

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20
Q

what splanchnic nerve supplies the sympathetic to testes

A

lesser splanchnic -T10-11

so referred pain is peri umbilical

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21
Q

what is value of the ilioinguinal nerve

A

L1 to medial thigh

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22
Q

what type of hernia is lateral to the inferior epigastric vessels

A

indirect inguinal

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23
Q

what muscle is found in the scrotum

A

dartos
smooth muscle
sympathetic fibres in gen branch of genfem

24
Q

what are the layers of the scrotum

A

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

25
Q

what is camper’s fascia replaced by

A

dartos muscle in the scrotum

26
Q

what does scarpa’s fascia become

A

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

27
Q

what is the perineal body

A

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

28
Q

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

A

ilioinguinal and genfem

L1

29
Q

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

A

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

30
Q

what is the blood supply of the anterior scrotum

A

deep and superficial external pudendal branches of the femoral artery

31
Q

what is the blood supply of the posterior testes

A

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

32
Q

what is the venous drainage of the anterior scrotum

A

deep and superficial external pudendal veins to the great saphenous vein

33
Q

what is the posterior scrotum venous drainage

A

internal pudendal veins

34
Q

what is the lymph drainage of the scrotum

A

superficial inguinal nodes

35
Q

describe the oblique lie of the testicle

A

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

36
Q

where is the epididymis

A

post lat and vas is post med

37
Q

how long is the epididymis

A

6m

38
Q

how does the testicle rotate in testicular torsion

A

around the pedicle

39
Q

what is the function of the tunica albuginea

A

maintains internal pressure to help transport of sperm

40
Q

what is the appendix epididymis

A

a remnant of the proximal end of the mesonephric duct

41
Q

what is appendix testis and prostatic utricle

A

remnant of the paramesonephric duct

42
Q

what structure forms the mediastinum and septae

A

albuginea

43
Q

what does the vasculosa contain

A

branches of the testicular vessels

44
Q

where is testicular referred pain

A

periumbilical

45
Q

how long is the vas

A

45 cm

46
Q

describe the course of the vas

A

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
Q

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

A

internal

48
Q

where are the seminal vesicles

A

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

49
Q

what forms the ejaculatory duct

A

the vas and the seminal vesicle

it passes through the prostate and combines with the urethra

50
Q

what sphincter contracts during ejaculation

A

the internal sphincter

51
Q

where are the openings of the ejaculatory ducts

A

just below the prostatic utricle on either side

52
Q

what is the veru montanum

A

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

53
Q

what are the branches of the pudendal nerve

A

inferior rectal nerve
perineal nerve
dorsal nerve of penis or clitoris

54
Q

describe the blood and nervous supply to the posterior scrotum

A

blood- internal pudendal branch of the femoral artery

nerve- scrotal branch of the perineal branch of the pudendal nerve, S2 and 3

55
Q

describe the blood and nervous supply to the anterior scrotum

A

blood- external pudendal from femoral artery

nerve- ilioinguinal and gen fem L1

56
Q

why is testicular pain referred peri umbilically

A

lesser splanchnic nerve supply from T10-11

57
Q

what are the origins of the layers of the scrotum

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

MD3002 post MSA (66 decks)

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