254ms
Updated: 4/9/2017

Musculocutaneous Nerve

0%
Topic
Review Topic
0
0
N/A
N/A
Questions
1
0
0
100%
0%
Evidence
1
0
0
0%
0%
Videos / Pods
1
Topic
Images
https://devupload.orthobullets.com/topic/10102/images/lineage musculocutaneus nerve.jpg
https://devupload.orthobullets.com/topic/10102/images/lineage musculocutaneus nerve with biceps.jpg
https://devupload.orthobullets.com/topic/10102/images/Brachial Plexus with sensory 566_moved.jpg
https://devupload.orthobullets.com/topic/10102/images/nerves_of_the_left_upper_extremity.jpg
https://devupload.orthobullets.com/topic/10102/images/msk nerve.jpg
  • Innervation
    • Motor
    • Sensory
      • lateral antebrachial cutaneous nerve
        • forearm sensory
  • Origin
    • C5,6,7
      • superior trunk
        • lateral cord
          • musculocutaneous nerve
            • branch to coracobrachialis
            • branch to biceps
            • branch to brachialis
              • lateral antebrachial cutaneous nerve (terminal branch)
  • Course
    • Pierces Coracobrachialis
      • pierces coracobrachialis 3-8 cm distal to coracoid
      • gives branch to coracobrachialis
    • Splits biceps and brachialis
      • runs between biceps and brachialis in the anterior compartment to enter the lateral aspect of the arm
      • gives branch to biceps and brachialis
    • Pierces deep fascia lateral to biceps brachii
      • a little above the elbow it pierces the deep fascia lateral to the tendon of the biceps brachii
    • Becomes lateral antebrachial cutaneous nerve (terminal branch)
      • emerges lateral to distal bicep tendon and brachoradialis to form lateral antebrachial cutaneous nerve
  • Injury & Clinical Conditions
    • Musculocutaneous Nerve Inury
      • usually iatrogenic during deltopectoral approach with dissection or retraction medial to conjoint tendon

Please rate this review topic.

You have never rated this topic.

Thank you. You can rate this topic again in 12 months.

Flashcards (0)
Cards
1 of 0
Questions (1)
Question locked
Sorry, this question is for
PEAK Premium Subscribers only
Upgrade to PEAK
Evidence (1)
VIDEOS & PODCASTS (2)
EXPERT COMMENTS (1)
Private Note