LAB 7 Flashcards
Joint type, articulation and movement: Sternoclavicular
Saddle joint
It articulates the sternal end of the clavicle with the manubrium of the sternum.
It causes up/down + ant/post scapular + clavicle movement.
Joint type, articulation and movement: acromial clavicular
Plane joint
protraction-retraction, elevation-depression, and axial rotation.
Acromial end articulates with the scapula acromian
Pec major movement
adducts, medially rotates, and transversely adducts arm at glenohumeral joint.
Trapezius movement
trapezius elevates, depresses, and retracts the scapula
Lats movement
internal rotation, adduction and extension of the arm
Delts movement
Arm abduction, which means raising your arm out to the side of your body.
Glenohumeral joint type, location and movement
ball and socket
glenoid fossa of scapula and humeral head
circumduction, rotation
Origin and insertion: Bicep Brachii
Aconeus origin, insertion and movement
O: lateral epicondyle of the humerus
I: lateral surface of olecranon
A: Assist in forearm extension at the elbow joint and stabilizes the elbow joint
Origin, Insertion and action of triceps brachii
O: infragelnoid tubercle of scapular , posterior surface of humerus, posterior surface of the humerus
I: Olecranon of ulna and forearm fascia
Action: extension of the forearm and extension + adduction of the arm
Origin and insertion of the biceps brachii
O: Coracoid process of scap supraglenoid ubercle of scap
I: Radial uberosity
A: supinates and flexes forearm
Origin, insertion and action of flexor digitorum superficialis
O: medial epicondyle of the humerus and proximal half of ula
I: side of phalenges middle 2 + 5
A: metacaropophageal and proximal interphalnges joints 2 - 5 finger flexion
Origin, insertion and action of the pronators teres
Medial supracondylar ridge of the humerus + coronoid process of the ulna
I: lateral radial surface
O: pronation of the forearm at the elbow
Origin, insertion and action of the flexor carpi radialis
O: medial epicondyle of the humerus
I: base of metacarpal bones 2 - 5
A - Wrist abduction
Origin, insertion and action of the palmaris longus
Medial epicondyle of the humerus
I: Flexor retinaculum palmer aponeurosis
A: wrist flexion
Origin, insertion and action of the flexor carpi ulnaris
O: medial epicondyle of humerus and olecarnon and posterior of the ulna
I: pisiform, hamate and 5th metacarpal
A: Wrist flexion and abduction
Origin, insertion and action of the brachioradialis
Lateral supracondylar ridge of the humerus
Muscular septum of the arm
I: Styloid process of the radius
A: forearm flexion
Origin, insertion and action of the extensor carpi radialis longus
Lateral epicondyle and lateral supracondylar ridge of the humerus
I: dorsal surface of 2nd metacarpal of the index finger
A: hand extension and hand abduction
Origin, insertion and action of the extensor carpi radialis brevis
O: lateral epicondyle of the humerus
I: Posterior part of the base of metacarpal 3
A: Hand extension and hand abdcution
Origin, insertion and action of the extensor digitorum
O: lateral epicondyle of the humerus
I: Digits 2 - 4 extensor expansions
A: Finger extension
Origin, insertion and action of the extensor digiti minimi
Lateral epicondyle of the humerus
I: extensor expansion of digit 5
A: finger extension
Extensor carpi ulnaris origin, insertion and action
Lateral epicondylar ridge of the humerus and pos border of the ulna
I: metacarpal 5 base
A: hand extension and adduction