Details Title: A&P Description: muscular system-part two Total Flash Cards: 26 Created: 07/02/2007 10:04:40		New Users: To study from this flashcard set, or to create your own your own study flash cards, REGISTER HERE. Existing Users: CLICK HERE. Additional Anatomy Flashcards
Cards in this set: Term buccinator Definition compresses cheek; pushes food between teeth; expels air or liquid from mouth; creates suction Term platysma Definition depresses mandible; opens and widens mouth; tenses skin of neck Term temporalis Definition elevates mandible for biting and chewing ; retracts mandible Term masseter Definition elevates mandible for bitin gand chewing; cuauses soe laterla excursion of mandible Term sternocleidomastoid Definition contraction of either one draws head down and toward teh side opposite the contracting muscle; contraction of both draws head forward and down, as in looing between the feet Term diaphragm Definition prime moveer of inspiration; compresses abdominal vicera to aid in such processes as defacation, urination , and childbirth Term external intercostals Definition when scalens fix rib 1, external intercostals draw ribs 2-12 upward and outward to expand thoracc cavity and inflate lungs lateral to internal Term internal intercostals Definition when quadratus lumborum and other muscles fix rib 13, internal intercostals draw ribs downward and inward to compress thoracic cavity and force air from lungs; not need for relaxed expiration Term rectus abdominanis Definition supports abdominal visera; flexes waist as in sit-ups; depresses ribs; stabilizes pelvis during walking; increases intra-abdominal pressure to aid in urination, defacation and childbirth Term external abdominal oblique Definition flexes waiste as in sit ups; flexes and rotates vertebral column is the most superficial of abdomen wall goes downward Term internal abdominal oblique Definition similar to external oblique flexes waist as in sit ups and flexes and rotates the vertebral column runs upward and is deep to teh external abdolminal oblique Term transversus abdominis Definition compresses abdomen, increases intra-abdominal pressure and flexes the vertebral column deep to obliques Term risorious Definition draws corner of mouth laterall as in grimacing Term pectoralis minor Definition protracts and depresses scapula when ribs are fixed; elevates ribs when scapula is fixed Term pectoralis major Definition prime mover of shoulder flexion Term pectoralis major Definition adducts and medially rotates humerous; depresses pectoral girdle; elevates ribs; aids in climbing, pushing and throwing Term latissimus dorsi Definition adducts and medially rotates humerous; extends shoulder joint; produces strong downward strokes of arm, as in hammering or swimming; pulls body upward as in climbing Term deltoid Definition leteral fibers abduct humerous; anterior fibers flexa nd medially rotate it; posterior fibers extend and laterally rotate it Term teres major Definition adducts and medailly rotates humerous; extends shouder joint Term teres minor is _____ to teres major Definition superior Term coracobrachiaslis Definition arm pit muscle adducts arm; flexes shoulder joint Term RC MUSCLE: 1infraspinatus 2supraspinatus 3subscapularis 4teres minor Definition infraspinatus: deep to pectoralis major extends and laterally rotates humerous supraspinatus:abducts humerous; resists downard displacment when carrying heavy weight subcapularis:medially rotates humerous Term teres minor does what Definition adducts and medially rotates humerous Term list the muscles that adduct the humerous Definition pectoralis major, latissimus dorsi, teres major, coracobrachialis(arm), teres minor Term list the muscles that abduct the humerous Definition deltoid, supraspinatus Term list those that medially rotate humerous those that laterally rotate it? Definition pectoralis major, latissimus dorsi, deltoid, teres major, subscapularis teres minor, infraspinatus,