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Kinesiology

Exam II

QuestionAnswer
Roll of rotator cuff muscles To keep the head of the humerus "rotating". Group of muscles that keep that rotate and steer humerus. Infraspinatus Teres minor Supraspinatus Supscapularis
1st class lever Axis located between force and resistance. Jaw- weight of head and force.
2nd class lever Axis at one end, resistance in the middle, and force at the other end. Calf raise- load in the middle, force at other end
3rd class lever Axis at one end with force in the middle,and resistance at opposite end. Bicep curl
Shoulder pathologies Acromioclavicular separation. Ligaments can get stretched, sprained, or ruptured.
Shoulder pathologies Clavicular fractures. Most common bone broken in children.
Shoulder pathologies Anterior shoulder dislocation. Most common, shoulder pops out, then down. Head of humerus slides anteriorly.
Shoulder pathologies Glenohumeral subluxation. paralysis of shoulder leave muscles unable to hold the head of humerus in glenoid fossa.
Shoulder pathologies Subacromial impingement. Humeral head pinches on acromion, decreases space.
Shoulder pathologies Adhesive capsulitis. "stuck" No ROM will cause limited blood supply causing adhesions quickly.
Shoulder pathologies Bicipital tendonitis. Tendonitis in the grove- inflamed, prone to tendon tears.
Carpal tunnel syndrome symptoms- numbness, tingling of the hand at night, weakness especially in thumb, middle and index finger. Cause- Compression on the median nerve within carpal tunnel. Structures involved- 9 flexor tendons, median nerve, transverse carpal ligament, bones
GH joint motions Flexion, extension, hyperextension, abduction, adduction, internal rotation, external rotation, horizontal abduction, horizontal adduction,
GH joint and other joints involved Scaption- scapular plane, Circumduction- circle or arc motion possible. Sternoclavicular Acromioclavicualr Scapulothoraxic
Scapula movements Elevation/depression, Upward/downward rotation, internal/external rotation, anterior/posterior tilt, protraction/retraction
Wrist CMC movements Flexion/extension, abduction/adduction, opposition-thumb to pinky, reposition-realignment
Elbow movements Flexion/extension, pronation/supination
Scapular plane Where scaption occurs-30 deg forward, midway flexion and abduction, 180 deg of up/down motion is possible with scaption
Stable equilibrium To disturb the object the COG would have to be raised- to disturb the brickn tip it upright.
Unstable Equilibrium Only slight force needed to disturb the object-balancing a pencil on the point end
Neutral Equilibrium objects COG is neither raised or lowered-a ball rolls across the floor.
Hemiparesis Weakness of one side of the body. Not equal weight bearing on both feet, Cog and LOG is shifted.
Bony landmarks of elbow Trochlea-articulates with the ulna. at distal end of humerus
Bony landmarks of elbow Infraglenoid tubercle-provide attachment for long head of tricep. Suprglenoid tubercle-provides attachment for long head of bicep. Coracoid process-provides attachment for short head of bicep.
joint of wrist radiocarpal joint- distal end of radius and radioulnar disk, and first carpal row. Ulna not considered part of joint.
joint of wrist Midcarpal-between two rows of carpal bones.
join of wrist carpometacarpal- between the distal row and meta carpals
supination/pronation radius moves around the ulna, muscle attachment on the radius due to olecranon process.
Intrinsic Muscle of the hand Attach proximal/distal to carpal bones and have function on the thumb or fingers. F.M. control/dexterity, precision m,vmt of hand. More muscles working together
Extrinsic muscles of the hand Larger-attach above, or proximal to the wrist joint. assistive role in wrist function. Primary function os thumb or index mvmt, or flexion, extension, deviation.
Created by: kclark5120
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