Muscles Of Anterolateral Ab Wall

Question 0

External oblique insertion

Answer 0

Linea alba, pubic tubercle, and anterior half of iliac crest

Question 1

External oblique origin

Answer 1

External surfaces of 5th -12th ribs

Question 2

External oblique innervation

Answer 2

Thoraco-abdominal nerves (a.r. T7-t11) and subcostal nerve

Question 3

External oblique action

Answer 3

Compress and support abdominal viscera; flex and rotate trunk

Question 4

Internal oblique origin

Answer 4

Thoracolumbar fascia, anterior two thirds of iliac crest, and connective tissue deep to inguinal ligament

Question 5

Internal oblique insertion

Answer 5

Infer borders of 10th-12th ribs, linea alba, and pubis via conjoint tendon

Question 6

Internal oblique innervation

Answer 6

Thoraco-abdominal nerves(a.r. T7-t11) and first lumbar nerve

Question 7

Internal oblique action

Answer 7

Compress and support abdominal viscera; flex and rotate trunk

Question 8

Transversus abdominis origin

Answer 8

Internal surfaces of seventh -tenth costal cartilages, thoracolumbar fascia, iliac crest, and connective tissue deep to inguinal ligament

Question 9

Transversus abdominis insertion

Answer 9

Linea alba with aponeurosis of internal oblique, pubic crest, and pectin pubis via conjoint tendon

Question 10

Transversus abdominis innervation

Answer 10

Thoraco-abdominal nerves(a.r. T7-t11) and first lumbar nerve

Question 11

Transversus abdominis action

Answer 11

Compresses and supports abdominal viscera

Question 12

Rectus abdominis origin

Answer 12

Pubic synthysis and pubic crest

Question 13

Rectus abdominis insertion

Answer 13

Xiphoid process and 5th-7th costal cartilages

Question 14

Rectus abdominis innervation

Answer 14

Thoraco-abdominal nerves(anterior rami of inferior six thoracic nerves)

Question 15

Rectus abdominis action

Answer 15

Flexes trunk and compresses abdominal viscera

Stabilizes and controls tilt of pelvis ( antilordosis)