MCB 150 Lecture Notes - Lecture 8: Longus Colli Muscle, Longus Capitis Muscle, Scalene Muscles

• School: University of Illinois
• Department: Molecular and Cell Biology
• Course: MCB 150
• Professor: B Mehrtens

Document Summary

Action: flexes neck laterally also rotates head towards opposite side. Origin: sternal end of clavicle and manubrium of sternum. Action: flexes and rotates neck; elevates rib 1. Origin: transverse pro was cesses of cervical vertebrae. Action: flexes neck and elevates rib 1. Action: flexes neck and elevates rib 2. Action: neck flexion- bending neck/head straight down; rotation; ipsilateral flexion and rotation. Origin: transverse processes of c-5 to t-3. Action: laterally flexes and rotates the head whiplash . Action: lateral flexion of vertebral column, with ipsilateral contraction. Extension of lumbar vertebral column, with bilateral contraction. Insertion: 12th rib and transverse processes of l1-l4. Unilaterally:laterally flex the head and neck to the same side. Insertion: spinous process of cervical vertebrae except atlas. Origin: spinous process of upper lumbar and lower thoracic vertebrae. Insertion: spinous processes of upper thoracic vertebrae. Origin: transverse processes of t1-t4, and articular processes of 4 c4-c7. Insertion: mastoid process of the temporal bone.