10 Questions
Which part of the brachial plexus is formed by the union of C8 & T1?
Lower trunk
Which nerve innervates the pectoralis major and minor muscles?
Medial pectoral nerve
Which nerve innervates the deltoid and teres minor muscles?
Axillary nerve
In the brachial plexus, which part is formed by the union of all three posterior divisions?
Posterior cord
Which part of the brachial plexus is named for its relationship to the axillary artery?
Medial cord
Which of the following best describes the key function of the brachial plexus?
Responsible for motor functions in the upper limb
What is the general relationship of the infraclavicular brachial plexus cords to surrounding structures?
Run deep to the clavicle and over the first rib
Which of the following accurately describes the anterior divisions of the brachial plexus?
Supply the flexor compartments of the upper limb
What is the primary function of the extensor compartments in relation to the brachial plexus?
Associated with extending movements in the upper limb
Where do the ventral rami originate from in relation to the brachial plexus?
Directly from the spinal segments
Test your knowledge on the general anatomy of the brachial plexus network of nerves, focusing on the formation and organization of the network within the neck. Learn about the ventral rami of spinal nerves C5, C6, C7, C8, and T1, as well as the trunks, divisions, cords, and branches that make up the brachial plexus.
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