Musculocutaneous nerve
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The musculocutaneous nerve is a mixed branch of the lateral cord of the brachial plexus derived from cervical spinal nerves C5-C7. It arises opposite the lower border of the pectoralis minor. It provi
Musculocutaneous nerve on superficial dissection.
Musculocutaneous nerve on deep dissection.
Coracobrachialis muscle
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The coracobrachialis muscle muscle in the upper medial part of the arm. It is located within the anterior compartment of the arm. It originates from the coracoid process of the scapula; it inserts ont
Musculocutaneous nerve
…It arises opposite the lower border of the pectoralis minor. It provides motor innervation to the muscles of the anterior compartment of the arm: the coracobrachialis, biceps brachii, and brachialis. It provides sensory innervation to the lateral forearm (via its terminal branch). It courses through the anterior part…
Muscles coracobrachialis and brachialis. Right upper limb. Anterior view. 1, Short head of biceps — 2, Coracoid process — 3, Pectoralis minor — 4, Coracobrachialis — 5, Brachialis —6, Medial intermuscular septum — 7, Deltoid impression of the humerus. (After Charpy.)
Coracobrachialis muscle (shown in green text)
Coracobrachialis muscle (shown in green text). Horizontal section of arm.
Coracobrachialis muscle (shown in green text)