Upper Limb test #1 Flashcards
What are the parts of the scapula? (14)
medial border, inferior angle, lateral border, infraglenoid tubercle, glenoid, supraglenoid tubercle, acromion, coracoid process, superior border, superior angle, spine of the scapula, infra-spinous fossa, supraspinous fossa, subscapular fossa
What are the movements of the scapulae?
elevation, depression, protraction, retraction, upwards and downwards rotation
What are the muscles of scapular movements? (6)
Trapezius, rhomboids (major and minor), levitator scapulae, subclavius, pectorals minor, serratus anterior
What are the origin, insertion and actions of Trapezius?
O - SP’s C1-T12, base of skull
I - spine of scapula, acromion, lateral clavicle
A - elevation, depression, protraction, rotation
What are the origin, insertion and actions of Rhomboids (major and minor)
O - Minor - Sp’s C7/T1
Major - SP’s T2-T5
I - Medial border of scapula
A - Retraction, downward rotation of scapulae
What are the origin, insertion and actions of Levator Scapulae?
O - Transverse processes of C1-C4
I - Superior angle of scapulae
A - Elevation, downward rotation
What are the origin, insertion and actions of Subclavius?
O - First rib
I - Inferior surface of clavicle
A - depresses clavicle
What are the origin, insertion and actions of Pectoralis minor?
O - ribs 3-5
I - Coracoid process of scapulae
A - Depression, protraction, downwards rotation
What are the origin, insertion and actions of Serratus anterior?
O - Ribs 1-8/9
I - medial border of anterior surface of scapulae
A - protraction, upwards rotation
What are the parts of the proximal end of the humerus? (7)
Head, surgical neck, anatomical neck, greater tuberosity, lesser tuberosity, inter tubercular groove, deltoid tuberosity
What are the movements of the arm?
Flexion, extension, adduction, abduction, rotation
What are the muscles of the glenohumeral join (muscles that move the arm, not rotator cuff)? (5)
Pectoralis major, Latissimus Doris, Teres major, Deltoid, Corachobrachilis
What are the origin, insertion and actions of Pectoralis major?
O - Sternum, costal cartilage, medial clavicle
I - lateral lip of inter tubercular groove
A - flexion, adduction, medial rotation
What are the origin, insertion and actions of Deltoid?
O - Lateral clavicle, spine of scapula, acromion
I - deltoid tuberosity
A - whole muscle - Abduction
- anterior part - flexion, medial rotation
- posterior part - extension, lateral rotation
What are the origin, insertion and actions of Corachobrachialis?
O - Coracoid process of scapula
I - medial border of humerus
A - adduction, flexion
What are the origin, insertion and actions of Teres major?
O - Inferior angle, lateral border of scapulae
I - medial border of intertuburcular groove
A - synergist w/ subscapularis in medial rotation
What are the origin, insertion and actions of Latissimus Dorsi?
O - SP’s of inferior thoracic and all lumbar vertebrae, ribs 8-12, thoracolumbar fascia
I - floor of intertubercular groove
A - extension, adduction, medial rotation
What are the rotator cuff muscles?
Supraspinatus, Infraspinatus, Teres minor, Subscapularis
What are the origin, insertion and actions of Supraspinatus?
O - Supraspinus fossa
I - Greater tubercle
A - abduction, coaptation
What are the origin, insertion and actions of Infraspinatus?
O - Infraspinatus fossa
I - Greater tubercle
A - lateral rotation, coaptation
What are the origin, insertion and actions of teres minor?
O - Lateral border of scapula
I - Greater tubercle
A - Lateral rotation, coaptation
What are the origin, insertion and actions of Subscapularis?
O - Subscapular fossa
I - Lesser tubercle
A - Medial rotation, coaptation
What is coaptation?
when all muscles of rotator cuff are activated, holds humerus in glenoid
What are the medial rotators?
Pectoralis minor, Latissimus dorsi, teres major, Subscapularis, corachobrachialis, anterior deltoid
What are the lateral rotators?
Teres minor, infraspinatus, posterior deltoid
What are the parts of the distal humerus? (8)
Shaft, Coranoid fossa, lateral epicondyle, medial epicondyle, olecranon fossa, trochlea, capitulum, condyle
What do the olecranon and coranoid fossa allow for?
larger range of motion, accept olecranon and coracoid process
What are the parts of the proximal radius and ulna? (7)
Trochlear notch, olecranon, olecranon process, coracoid process, ulnar tuberosity, radial notch (of ulna), radial head
What are the origin, insertion and actions of Biceps brachii?
O - Long head - supraglenoid tuberosity
Short head - coracoid process of scapula
I - radial tuberosity
A - flexion at elbow
What are the origin, insertion and actions of Brachialis?
O - Distal half of humerus
I - Ulnar tuberosity/coranoid process of ulna
A - flexion at elbow
What are the muscles in the anterior compartment of arm?
Biceps brachii, brachialis, coracobrachialis (action at GH joint only)
What are the muscles of the posterior compartment of the arm?
Triceps brachii, anconceus
What are the origin, insertion and actions of triceps brachii?
O - Long head - infraglenoid tubercle
Lateral head - Lateral humerus
Medial head - deep on distal half of humerus
I - Olecranon process
A - extension at elbow
