ANAT 201 Lecture Notes - Lecture 8: Extensor Carpi Ulnaris Muscle, Flexor Carpi Ulnaris Muscle, Extensor Digitorum Longus Muscle

• School: Ball State University
• Department: Anatomy
• Course: ANAT 201
• Professor: Bryan Essien

Document Summary

Anat 201 lecture 8 appendicular musculature. Forearm muscles that move wrist and fingers. Compartments spaces enclosed by fasciae called intermuscular septa. Each compartment has one or more functionally related muscles: flexors and extensors. Each compartment has nerves and blood vessels. Upper limbs have anterior and posterior compartments. Lower limbs have anterior, posterior, medial, and lateral compartments. Pectoralis major flexes, adducts, and medially rotates the humerus. Deltoid can flex, extend, medially rotate, or abduct the arm depending on which fibers are active. Teres major extends and medially rotates humerus. Latissimus dorsi adducts, extends, and medially rotates humerus. Rotator cuff muscles in relation to the scapula. Tendons of four muscles form the rotator cuff: supraspinatus, infraspinatus, teres minor, subscapularis. Brachialis is the prime mover of elbow flexion. Biceps brachii supinates forearm and flexes both elbow and shoulder. Pronator teres and pronator quadratus pronate forearm.