KIN 2500 Chapter : The Muscle List

• School: LSU
• Department: Kinesiology: Professional Courses/Basic Activity Courses
• Course: KIN 2500
• Professor: All

Document Summary

Kin 2500 -- muscles: origin: sternum and clavicle, insertion: mastoid process, action: together (two actions) cervical flexion (nod head yes), singly rotate opposite side (turn head right, turn head left, nerve: accessory, c2-c3. Rectus abdominis: origin: pubic crest & pubic symphysis, insertion: cartilage of ribs 5-7 & xiphoid process, action: compression of abdomen & flex vertebral column, nerve: t7-t12 (t means thoracic) External oblique: origin: lower 8 ribs, insertion: iliac crest, linea alba, action: together compress abdomen, singly laterally flex vertebral column, nerve: t7-t12, iliohypogastric. Internal oblique: origin: iliac crest, inguinal ligament, insertion: cartilage of last 3-4 ribs, action: together compress abdomen, singly laterally flex vertebral column, nerve: t8-t12, iliohypogastric, ilioinguinal. Transversus abdominis: origin: iliac crest, inguinal ligament, cartilage of last 6 ribs, insertion: xiphoid, linea alba, action: compress abdomen, nerve: t8-t12, iliohypogastric, ilioinguinal. Diaphragm: origin: xiphoid process, cartilage of last 6 ribs, insertion: central tendon, action: pulls central tendon increase thorax length during inspiration, nerve: phrenic.