ANP 1106 Lecture Notes - Lecture 7: Biceps, Triceps Brachii Muscle, Gluteus Minimus Muscle
18 Feb 2017
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Document Summary
Muscle fiber is the name of a single muscle tissue cell. Muscle attachments: most muscles span joints, most muscles are attached to bones in at least 2 places, origin: . , insertion: . , most attachments are indirect attachments involving either a tendon or an aponeurosis. Prime mover i. e. biceps brachii and elbow exion. Antagonist: can provide resistance to prevent overshoot or control rate of movement, a single muscle can be a prime mover for one action & an antagonist for another action i. e. biceps brachii & triceps brachii. Synergists: muscles that help the prime mover by promoting the same movement reducing undesirable movements eg: nger exor muscles cross both wrist & phalangeal joints. Fixators: immobilize a bone i. e. muscles involved in posture. 5. 5 muscles of the neck and vertebral column. Head and trunk movements: head moved by muscles originating from axial skeleton, sternocleidomastoid (manubrium/clavicle to mastoid process of temporal):
