Unit 3 - Thorax, Abdomen, Pelvis, and Perineum: Inguinal Canal (Ex. III)

Question 1

P wall

Answer 1

transversalis fascia
conjoined tendon
parietal peritoneum

Question 2

floor

Answer 2

inguinal ligament

densely interwoven fibers of lower external oblique aponeurosis and adjacent fascia lata of thigh

Question 3

roof

Answer 3

arching fibers of aponeuroses of internal oblique and transversus abdominis

Question 4

superficial inguinal ring

Answer 4

• opening in external oblique aponeurosis (M end of canal)
• bounded by M and L crus, intercrural fibers, and reflected inguinal ligament
• lies in A wall of Hesselbach’s triangle

Question 5

deep inguinal ring

Answer 5

• outpouching of transversalis fascia L to L umbilical fold (I epigastric vessels)
• L end of canal
• immediately L to I epigastric vessels
• lies in L inguinal fossa

Question 6

What does it do?

Answer 6

allows for passage of structures between abdominal wall and pelvic cavities and perineum

Question 7

A wall

Answer 7

aponeurosis of external oblique

Question 8

contents

Answer 8

spermatic cord (males)
round ligament of uterus (females)