Neck and Trunk Muscles

Question 1

Sternocleidomastoid

Answer 1

side of neck, arising from sternum and clavicle; flex neck, looking to the side

Question 2

Trapezius

Answer 2

occipital bone to cervical and thoracic vertebrae; raises, retracts, rotates scapula

Question 3

Intercostals

Answer 3

between ribs, breathing

Question 4

External Oblique

Answer 4

lateral abdomen, last 8 ribs to ilium; flex vertebrae, bending down

Question 5

Internal Oblique

Answer 5

right angle to external, iliac crest to last 3 ribs; flex vertebrae, bending down

Question 6

Transverse Abdominis

Answer 6

lower ribs and iliac crest, inserts into pubis; stabilize spine, core, abdomen

Question 7

Rectus Abdominis

Answer 7

pubis to ribcage; flex trunk and vertebrae, holding breath

Question 8

Erector Spinae Muscle Group

Answer 8

iliac crest, ribs 3-12, vertebrae; extends and laterally flexes spine, turning