Muscles of the Arm (Division, Origin, Insertion, Function)
Content
Introduction 0:00
Division of the Arm Muscles 0:24
Brachialis 0:45
Coracobrachialis 1:00
Biceps Brachii 1:21
Anconeus 2:02
Triceps Brachii 2:16
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Muscles of the arm
- Anterior (Flexor) Group [3]
- Posterior (Extensor) Group [2]
Anterior (Flexor) Group [3]
Brachialis
Musculus brachialis
- O: Anterior diaphysis of the humerus
- I: Tuberosity of Ulnae
Tuberositas ulnae
- F: Flexion
Coracobrachialis
musculus coracobrachialis
- O: Coracoid process
processus coracoideus scapulae
- I: Anterior diaphysis of the humerus
- F: Flexion, adduction and Internal Rotation
Biceps Brachii
musculus biceps brachii
- Long Head
O: Supraglenoid Tubercule
tuberculum supraglenoidale scapulae
- Short Head
O: Coracoid process
processus coracoideus scapulae
- I: Radial Tuberosity
tuberositas radii
- Function:
Flexion Supination of forearm
Flextion Abduction of arm
Posterior (Extensor) Group [2]
Anconeus
musculus anconeus
O: Lateral Epicondyle of the Humerus
epicondylus lateralis humeri
- I: Proximal Epiphysis of the Ulna
- F: Extention of lower arm
Triceps Bachii
Musculus ticeps brachii
- Medial Head
○ O: Daphysis of humerus
- Lateral Head
○ O: Diaphysis of humerus
- Long Head
○ O: Infraglenoid Tubercle
- I: Olecranon of Ulna
- F:
Extension of forearm
Extension Adduction of arm
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