ANP 1106 Lecture Notes - Lecture 7: Longissimus, Splenius Capitis Muscle, Cervical Vertebrae

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1106
• Professor: Jackie Carnegie

Document Summary

Muscle fibers: endomysium: fine/thin ct surrounds individual muscle cells, perimysium: sheath surrounds fascicle bundles, epimysium: dense ct surrounds multiples of fascicle bundles outside layer of a single muscle. Deep fascia: dense ct binds muscles with functional groups. Originating from anchoring site of bone which does not move. Interactions of skeletal muscles-muscle can work together or in opposition. Prime mover: make specific movement for pulling of strong muscle. Synergists: muscle that help the prime mover by keep making same movement, reducing unwanted movements. Fixators: holds the posture and allow freedom to stop any movement. Biceps, triceps, quadriceps: location of muscle"s origin and/or insertion: origin indicated first, then insertion; sternocleidomastoid, action of the muscle: ex. flexor, extensor, adductor, abductor. Extensor carpi radialis longus: extension (stretch), carpal, radial, long. Epicranius aponeurosis: no muscle in this area- skull do not need muscle: frontalis: forehead muscle for raising eyebrows, occipitalis: pull the scalp backward-just anchoring.