appendicular muscles Flashcards
Action: Abducts shoulder joint
Origin: Acromial end of clavicle
Insertion: Deltoid tuberosity of the humerus
Deltoid
Action: elevates scapula
Levator scapulae & Rhomboid Major & Rhomboid Minor & Trapezius
Action: stabilizes scapula
Serratus Anterior
Action: Flexes arm at shoulder joint
Origin: Acromial end of scapula
Insertion: Deltoid tuberosity of Humerus
Pectoralis Major
Action: ABDucts scapula
Origin: Acromial end of scapula
Insertion: Deltoid Tuberosity of Humerus
Pectoralis Minor
Action: Abducts arm at shoulder joint
Origin: Supraspinous fossa of scapula
Insertion: greater tubercle of humerus
Supraspinatus
Action: Abducts arm at shoulder joint
Origin: Infraspinous fossa of scapula
Insertion: Greater tubercle of humerus
Infraspinatus
Action: Extends arm at shoulder joint
Origin: Subscapular fossa of scapula
Insertion: Lesser tubercle of Humerus
Teres Major
Action: Laterally rotates arm at shoulder joint
Origin: Lateral Border of scapula
Insertion: Greater tubercle of humerus
Teres Minor
Action: Medially rotates arm at shoulder joint
Origin: Subscapular fossa of scapula
Insertion: lesser tubercle of Humerus
Subscapularis
Action: Extends forearm at elbow joint
Origin: Infraglenoid tubercle of scapula
Insertion: Olecranon process of Ulna
Triceps Brachii Long Head
Action: Extends forearm at elbow joint
Origin: Posterior shaft of Humerus
Insertion: Olecranon process of Ulna
Triceps Brachii Lateral Head
Action: Extends forearm at elbow joint
Origin: Posterior Shaft of Humerus
Insertion: Olecranon process of ulna
Triceps Brachii Medial Head
Action: Extends forearm at shoulder joint
Anconeus
Action: Flexes arm at shoulder joint
Origin: Infraglenoid tubercle of Scapula
Insertion: Radial tuberosity of the Humerus
Biceps Brachii Long head
Action: Flexes arm at shoulder joint
Origin: Coracoid process of the scapula
Insertion: Radial Tuberosity of the Humerus
Biceps Brachii Short Head
Actions: Adducts arm at the shoulder joint
Origin: Coracoid process of the Scapula
Insertion: Middle Medial Shaft of the Humerus
Coracobrachialis