Muscles Of The Abdominal Wall

Question 0

Insertion of external oblique

Answer 0

Most fibers insert into linea alba via broad aponeurosis; some insert into pubic crest and tubercle and iliac crest

Question 1

Origin of external oblique

Answer 1

By fleshy strips from outer surfaces of lower eight ribs

Question 2

Action of external oblique

Answer 2

Flex vertebral column and compress abdominal wall; trunk rotation and lateral Flexion

Question 3

Innervation of external oblique

Answer 3

Intercostal nerves

Question 4

Origin of internal oblique

Answer 4

Lumbar fascia, iliac crest, and inguinal ligament

Question 5

Insertion of internal oblique

Answer 5

Linea alba, pubic crest, last thee or four ribs and costal margin

Question 6

Action of internal oblique

Answer 6

Flex vertebral column and compress abdominal wall; trunk rotation and lateral Flexion

Question 7

Innervation of internal oblique

Answer 7

Intercostal nerves

Question 8

Origin of transversus abdominis

Answer 8

Inguinal ligament, lumbar fascia, cartilages of last six ribs; iliac crest

Question 9

Insertion of transversus abdominis

Answer 9

Linea alba, pubic crest

Question 10

Action of transversus abdominis

Answer 10

Compresses abdominal contents

Question 11

Innervation of transversus abdominis

Answer 11

Intercostal nerves

Question 12

Origin of rectus abdominis

Answer 12

Pubic crest and symphysis

Question 13

Insertion of rectus abdominis

Answer 13

Xiphoid process and costal cartilages of ribs 5-7

Question 14

Action of rectus abdominis

Answer 14

Flex and rotate lumbar region of vertebral column

Question 15

Innervation of rectus abdominis

Answer 15

Intercostal nerves