musculocutaneous nerve


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Related to musculocutaneous nerve: radial nerve, axillary nerve, median nerve

mus·cu·lo·cu·ta·ne·ous nerve

[TA]
arises from lateral cord of the brachial plexus, passes through the coracobrachialis muscle and then downward between the brachialis and biceps, supplying these three muscles and continuing distally as the lateral cutaneous nerve of the forearm.
Synonym(s): nervus musculocutaneus [TA]

mus·cu·lo·cu·ta·ne·ous nerve

(mŭs'kyū-lō-kyū-tā'nē-ŭs nĕrv) [TA]
Arises from lateral cord of the brachial plexus, passes through the coracobrachialis muscle, and then downward between the brachialis and biceps, supplying these three muscles and being prolonged as the lateral cutaneous nerve of the forearm.
Synonym(s): nervus musculocutaneus [TA] .
References in periodicals archive ?
When the recipient nerve was the musculocutaneous nerve, the muscle strength recovery rate after CC7 nerve transfer was 0.74 (95% CI : 0.65-0.82).
(16) applied axillary block in patients who were to undergo hand surgery, and blocked only 1 or 2 nerves that innervated the operation area, and blocked the musculocutaneous nerve, median nerve and radial nerve in the other group.
Supramaximal stimulus: During each contraction and when the force reached a plateau, a supramaximal stimulus was delivered to the musculocutaneous nerve over the motor point.
The additional re-innervation of the brachialis, a strong elbow flexor, has improved outcome following loss of the musculocutaneous nerve. In 2005 Oberlin reported 15 of 15 patients recovered M4 strength and MacKinnon reported 6 of 6 recovering M4 strength.
Sensory blockade, assessed by pinprick with a reduction to 22 [+ or -] 8% of musculocutaneous nerve at 30 minutes after completion of the injection, was considered an effective block based on the pilot study (16 cases).
The musculocutaneous nerve branches from the lateral cord of the brachial plexus just distal to the axilla where it courses behind the coracobrachial muscle, penetrates the coracobrachialis and extends to the anterior aspect of the arm (Figure 1).
For motor block, the inability to flex or extend the following joints: musculocutaneous nerve (Flex Elbow), median nerve (Flex Distal Interphalangeal Joint of 2 nd Finger), radial nerve (Extend Wrist), ulnar nerve (Abduct 3rd and 4th fingers) was tested.
The experimental research of nerve fibers compensation amplification innervation of ulnar nerve and musculocutaneous nerve in rhesus monkeys.
The musculocutaneous nerve arises from the lateral cord, perforates the coracobrachialis muscle and leaves the neurovascular sheath usually at the level of the lateral edge of the pectoralis major.
The musculocutaneous nerve usually pierces the coracobrachialis muscle.
The LACN runs superficially between the biceps and the brachialis muscle, where the LACN becomes a continuation of the musculocutaneous nerve. Iatrogenic injury or excessive retraction of this nerve can lead to a painful neuroma and paresthesias down the anterolateral aspect of the forearm.