Answered: What are the main terminal branches of…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Related questions

Question

What are the main terminal branches of the brachial plexus, and
what muscles do these terminal branches innervate?

Expert Solution

Step 1 Introduction on Brachial plexus:

The brachial plexus is a network of nerve fibres of the upper limb. It commences in the root of the neck, passes through the axilla and runs via the upper extremity. This is formed by the divisions of cervical spinal nerves C5, C6, C7 and C8, and the first thoracic spinal nerve, T1. It arises from the spinal cord, extends through the cervicoaxillary canal of the neck, crosses over the first rib and enters into the armpit. It consist of 5 roots, 3 trunks, 6 divisions, 3 cords, and 5 terminal branches. This is essentially required for cutaneous and muscular innervation of the entire upper limb.