Muscles origin and insertion

Question 1

internal intercostal muscle and innermost intercostal origin and insertion

Answer 1

lower margin of lower ribs to inner surface of ribs 2-3 ribs below

Question 2

transervsus thoracis muscle origin and insertion

Answer 2

origin: sternum and xiphoid process
insertion: 2-6th ribs

Question 3

rectus abdominis origin

Answer 3

lateral head: crest of pubis to pubic tubercle

medial head: anterior region of pubic symphysis

Question 4

rectus abdominis insertion

Answer 4

cartilages of 5-7th ribs, xiphoid process of sternum

Question 5

external oblique origin

Answer 5

5-12 ribs

Question 6

external oblique insertion

Answer 6

linea alba, pubic tubercle, anterior iliac crest

Question 7

internal oblique origin

Answer 7

thoracolumbar fascia, iliac crest, anterior superior iliac spine, iliopsoas fascia

Question 8

internal oblique insertion

Answer 8

10-12 ribs, linea alba

Question 9

transversus abdominis origin

Answer 9

7-12th costal cartilages, thoracolumbar fascia, iliac cret, anterior superior iliac spine, iliopsoas fascia

Question 10

external intercostal muscle origin and insertion

Answer 10

lower margin of rib to upper margin of next rib

Question 11

transversus abdominis insertion

Answer 11

libnea alba, pubic crest