ALL QUESTIONS AND ANSWERS INCLUDED IN ATR 257 EXAМ 3 - FULLY
SOLVED AND VERIFIED
Motions of Shoulder - ANSWER FL & EXT, ABD & ADD, IR & ER,
horizontal ABD & horizontal ADD, circumduction
Scapular Elevation - ANSWER shoulder shrug
Scapular Depression - ANSWER opposite of elevation
Scapular Retraction - ANSWER pinch shoulder blades together
Scapular Protraction - ANSWER opposite of retraction
Scapula - ANSWER aka shoulder blade; spine, superior angle, inferior angle,
medial/vertebral border, lateral/axillary border, acromion process, & coracoid
process
Clavicle ANSWER aka collar bone; distal/lateral end & proximal/medial end;
-
"S" shaped
Sternum - ANSWER
Humerus - ANSWER head,
tuberosity, lesser tuberosity, bicipital
greater
groove, shaft; GH jt. is ball & socket jt. but glenoid fossa if flat & humeral head
is round, causing increased movability but decreases stability
Thorax - ANSWER ribs; specifically posterior aspect of ribs 2-8
Joints - ANSWER glenohumeral (GH), acromioclavicular (AC),
sternoclavicular (SC), & scapulothoracic (ST)
Anterior Muscles - ANSWER FL shoulder & may FL elbow
Posterior Muscles - ANSWER EXT shoulder & may EXT the elbow
,Lateral Muscles - ANSWER ABD shoulder
Medial Muscles - ANSWER ADD shoulder
Deep Muscles - ANSWER IR & ER shoulder
Deltoids - ANSWER forms "cap" of the shoulder; 1 muscle w/ 3 parts;
originate an acromion process & insert on lateral shaft of humerus
Anterior Deltoid - ANSWER shoulder FL
Middle Deltoid ANSWER shoulder ABD
Posterior Deltoid - ANSWER shoulder EXT
Biceps brachii - ANSWER 1 muscle w/ 2 heads (long & short); crosses
shoulder & elbow causing shoulder & elbow FL
Biceps Tendon - ANSWER tendon of long head runs through biceptal groove
of humerus & over the humeral head to attach to the scapula, resulting in a
tendon running b/w 2 bones; when shoulder in neutral RO or ER, Biceps tendon
is ok during shoulder FL; when shoulder in IR, Biceps gets pinched under
acromion process during shoulder FL above 90°; ER is easier that IR when FL
Triceps brachii - ANSWER 1 muscle w/ 3 heads; crosses shoulder & elbow to
EXT both
Rotator Cuff - ANSWER 4 muscles; begin on scapula & end on greater or
lesser tuberosity of humerus; stabilizes GH jt. & shoulder IR & ER; small
muscles made for endurance NOT brute strength; Supraspinatus, Infraspinatus,
Teres minor, & Subscapularis
Supraspinatus - ANSWER runs from above spine of scapula & under acromion
process to attach on top of greater tuberosity of humerus; holds humeral head in
glenoid fossa & shoulder ABD
,
SOLVED AND VERIFIED
Motions of Shoulder - ANSWER FL & EXT, ABD & ADD, IR & ER,
horizontal ABD & horizontal ADD, circumduction
Scapular Elevation - ANSWER shoulder shrug
Scapular Depression - ANSWER opposite of elevation
Scapular Retraction - ANSWER pinch shoulder blades together
Scapular Protraction - ANSWER opposite of retraction
Scapula - ANSWER aka shoulder blade; spine, superior angle, inferior angle,
medial/vertebral border, lateral/axillary border, acromion process, & coracoid
process
Clavicle ANSWER aka collar bone; distal/lateral end & proximal/medial end;
-
"S" shaped
Sternum - ANSWER
Humerus - ANSWER head,
tuberosity, lesser tuberosity, bicipital
greater
groove, shaft; GH jt. is ball & socket jt. but glenoid fossa if flat & humeral head
is round, causing increased movability but decreases stability
Thorax - ANSWER ribs; specifically posterior aspect of ribs 2-8
Joints - ANSWER glenohumeral (GH), acromioclavicular (AC),
sternoclavicular (SC), & scapulothoracic (ST)
Anterior Muscles - ANSWER FL shoulder & may FL elbow
Posterior Muscles - ANSWER EXT shoulder & may EXT the elbow
,Lateral Muscles - ANSWER ABD shoulder
Medial Muscles - ANSWER ADD shoulder
Deep Muscles - ANSWER IR & ER shoulder
Deltoids - ANSWER forms "cap" of the shoulder; 1 muscle w/ 3 parts;
originate an acromion process & insert on lateral shaft of humerus
Anterior Deltoid - ANSWER shoulder FL
Middle Deltoid ANSWER shoulder ABD
Posterior Deltoid - ANSWER shoulder EXT
Biceps brachii - ANSWER 1 muscle w/ 2 heads (long & short); crosses
shoulder & elbow causing shoulder & elbow FL
Biceps Tendon - ANSWER tendon of long head runs through biceptal groove
of humerus & over the humeral head to attach to the scapula, resulting in a
tendon running b/w 2 bones; when shoulder in neutral RO or ER, Biceps tendon
is ok during shoulder FL; when shoulder in IR, Biceps gets pinched under
acromion process during shoulder FL above 90°; ER is easier that IR when FL
Triceps brachii - ANSWER 1 muscle w/ 3 heads; crosses shoulder & elbow to
EXT both
Rotator Cuff - ANSWER 4 muscles; begin on scapula & end on greater or
lesser tuberosity of humerus; stabilizes GH jt. & shoulder IR & ER; small
muscles made for endurance NOT brute strength; Supraspinatus, Infraspinatus,
Teres minor, & Subscapularis
Supraspinatus - ANSWER runs from above spine of scapula & under acromion
process to attach on top of greater tuberosity of humerus; holds humeral head in
glenoid fossa & shoulder ABD
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