The Orthobullets Podcast Foundations⎪Anatomy⎪Brachioradialis
Nov 6, 2024
Dive into the fascinating anatomy of the brachioradialis muscle and its clinical implications, especially in newborn shoulder dystocia cases. Learn how detailed muscle knowledge helps identify nerve injuries in the brachial plexus. Explore the effects of upper limb nerve injuries, particularly how the axillary nerve influences shoulder abduction. Discover the roles of C5, C6, and C7 nerve roots, as well as other critical nerves affecting arm movement and sensation. It's a blend of foundational knowledge and clinical insights!
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Brachioradialis Function
- The brachioradialis originates on the humerus and inserts on the radius.
- It's responsible for flexing the elbow.
Brachioradialis Innervation
- The brachioradialis flexes the elbow and is innervated by the radial nerve.
- This nerve receives input from the C5, C6, and C7 nerve roots.
Erb Palsy and Clinical Presentation
- Erb palsy, caused by injury to the C5 and C6 nerve roots, affects shoulder and elbow movement.
- This injury is common in newborns with shoulder dystocia.