BIO 11 Lecture Notes - Lecture 20: Piriformis Muscle, Anatomical Terms Of Motion, Iliacus Muscle
3 Sep 2020
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Biceps brachii rotation of radius at radio-ulnar joints. Flexion at elbow and shoulder, supination of forearm and hand by lateral. Extension at elbow, plus extension and aduction at shoulder. Actions of the rotator muscles on the forearm. Supinates forearm and hand by lateral rotation of radius at radiolunar joints. Pronate forearm and hand by medial rotation of radius at radio-ulnar joints, plus flexion at elbow. O: ulna and medial epicondyle of humerus. Understand there are two layers of muscle tissue. Appreciate we have two layers of extensors and flexors. Each of the joints in our hand. Palm of thum to half ring to the top of three knuckles. Up half of thumb to the front knuckle of pointer to half ring. Flexion at knee; abduction, flexion, and lateral rotation at hip. Adduction and flexion at hip, medial rotation at hip. Flecion and medial rotation at knee; adduction and medial rotation at.
