3 - inguinal canal

Question 1

when is the inguinal canal formed?

Answer 1

during relocation of gonads during foetal development

Question 2

how is the inguinal Canal formed?

Answer 2

layers of anterior abdominal wall push through the wall obliquely

Question 3

length of inguinal canal?

Answer 3

~4cm

Question 4

2 attachments of the inguinal ligament on the hip bone?

Answer 4

anterior superior iliac spine

pubic tubercle

Question 5

3 muscle layers of inguinal canal, from top to bottom?

Answer 5

transversus abdominis
internal oblique
external oblique

Question 6

which vessels are related to inguinal canal?

Answer 6

femoral vessels

Question 7

which 2 muscle layers surround the testis in the scrotum ?

Answer 7

external oblique (most external)
internal oblique (most internal)

Question 8

anterior wall?

Answer 8

external oblique aponeurosis

(lowermost fibres of) internal obliques

Question 9

posterior wall?

Answer 9

transversalis fascia

inguinal falx

Question 10

roof?

Answer 10

transversalis fascia
musclo-aponeurotic arches of the internal oblique and transverses abdominis muscles
medial crus

Question 11

floor?

Answer 11

inguinal ligament
iliopubic tract
lacunar ligament

Question 12

where does the superficial ring lie in relation tot he pubic tubercle?

Answer 12

superior and lateral

Question 13

how to differentiate between superficial and deep inguinal ring?

Answer 13

superficial - the body wall is intact

deep - external obliques are removed to show deeper layers

Question 14

contents of male IC?

Answer 14

spermatic cord
ilioinguinal nerve
genital branch of genitofemoral n

Question 15

contents of female IC?

Answer 15

round ligament
ilioinguinal n
genital branch of genitofemoral n

Question 16

2 types of inguinal hernias?

Answer 16

direct

indirect

Question 17

which type of inguinal hernia is most common?

Answer 17

indirect

Question 18

what is the cause of indirect inguinal hernias?

Answer 18

congenital weakness in deep inguinal ring

Question 19

describe a direct inguinal hernia?

Answer 19

abdominal contents DO NOT pass through deep ring but push through a weak spot in the posterior wall of the IC

Question 20

name 2 other types of hernias?

Answer 20

femoral

umbilical