Anatomy and Order
The brachial plexus is formed by the convergence of this specific part of the spinal nerves?
Ventral Rami
These two spinal roots converge to form the superior trunk of the brachial plexus
What is C5 and C6?
These two terminal branches arise directly from the posterior cord
What are the axillary and radial nerves?
This specific nerve branches straight off the superior trunk to supply a small muscle located right beneath the collarbone
What is the dorsal scapular nerve?
Sensory Information is what?
What is Afferent
What Spinal nerves make up the brachial plexus?
What is C5, C6, C7, C8, T1?
To form the inferior trunk, these two specific spinal nerve roots must converge
What is C8 and T1
This terminal branch is formed by both the lateral cord and the medial cord.
What is the median nerve?
This specific nerve branches off the lateral cord and provides innervation to the pectoralis major muscle
What is the lateral pectoral nerve?
The myotome for making a fist is which of the following?
C8
Moving from proximal to distal, this is the correct anatomical order of the five segments of the brachial plexus.
What is Roots, Trunks, Divisions, Cords, and Branches?
The anterior division of the inferior trunk continues to solely form this specific cor
What is the medial cord?
This terminal branch originates as the direct continuation of the lateral cord.
What is the musculocutaneous nerve?
What nerve innervates the supraspinatus and the infraspinatus?
Suprascapular
This type of specialized cell or structure in the integumentary system is responsible for sensing pain.
What is Nociceptors?
In the sequence of the plexus, this segment acts as a connection point for the trunks to the cords.
What are the divisions?
These structural segments serve as the foundational basis for the dermatomes and myotomes
What are the roots (or ventral rami)?
This cord continues distally to become the musculocutaneous nerve.
What is the lateral cord?
This specific nerve branches off the posterior cord and innervates the latissimus dorsi muscle.
What is the thoracodorsal nerve?
What nerve innervates the skin on the volar side of the index and middle fingers?
What is median nerve?
This term refers to the functional network formed when the ventral rami of spinal nerves converge
What is a plexus?
The superior trunk is formed by C5 and C6, and the middle trunk is formed by C7 alone, this is the specific trunk created by the meeting of C8 and T1.
What is the inferior trunk?
The ulnar nerve branches directly from the medial cord and contains fibers only from these two root levels.
What are C8 and T1
This specific nerve branches off the roots of C5, C6, and C7, passing the trunks, divisions, and cords.
What is the long thoracic nerve?
This type of joint allows for free movement and is characterized by the presence of a joint capsule.
What is synovial joint?