Musculocutaneous nerve

l
TA	A14.2.03.024
from	Plexus brachialis
arises from	fasciculus lateralis
continues as	nervus cutaneus antebrachii lateralis

Nervus musculocutaneus (C5-C7) separates from fasciculus lateralis plexus brachialis in axile.

Topography

• It breaks through musculus coracobrachialis (so we know it safely at autopsy).
• it gets on the arm between m. Biceps brachii and m. brachialis.
• On the forearm, cephalica antebrachii is added to the vein.

Innervation

Motor innervation of arm flexors

• m. coracobrachialis,
• m. biceps brachii,
• m. brachialis.

Sensitive inertia on the forearm

• As nervous cutaneus antebrachii lateralis sensitiously innerses the skin of the lateral half of the forearm.

Links

Related articles

• Nerves of the upper limb
• Musculus coracobrachialis
• Musculus brachialis
• Musculus biceps brachii

Literature used

• PETROVICKÝ, Pavel. Anatomie s topografií a klinickými aplikacemi. 1. edition. Martin : osveta, 2002. 542 pp. vol. 3. ISBN 80-8063-048-8.