Plan of brachial plexus. (Posterior cord is shaded gray.)
The right brachial plexus with its short branches, viewed from in front. The sternomastoid and trapezius muscles have been completely removed, the omohyoid and subclavius have been partially removed; a piece has been sawed out of the clavicle; the pectoralis muscles have been incised and reflected.
Details
From
Brachial plexus - posterior divisions of the three trunks
To
Subscapular, up. and low. thoracodorsal axillary radial
Innervates
None
Identifiers
Latin
fasciculus posterior plexus brachialis
TA98
A14.2.03.023
TA2
6416
FMA
45237
Anatomical terms of neuroanatomy
[edit on Wikidata]
The posterior cord is a part of the brachial plexus. It consists of contributions from all of the roots of the brachial plexus.[1]
The posterior cord gives rise to the following nerves:[2]
Name
Roots
Supplies
upper subscapular nerve
C5-C6
subscapularis muscle of the rotator cuff
lower subscapular nerve
C5-C6
subscapularis muscle, teres major muscle
thoracodorsal nerve
C6-C8
latissimus dorsi muscle
axillary nerve
C5-C6
sensation to the shoulder and motor to the deltoid muscle, the teres minor and the triceps brachii (long head) muscle
radial nerve
C5-C8, T1
triceps brachii muscle, the brachioradialis muscle, the extensor muscles of the fingers and wrist (extensor carpi radialis muscle), supinator, and the extensor and abductor muscles of the thumb
^Drake, Richard, et al. Gray's Anatomy For Students, Elsevier, 2005. pg. 657
The posteriorcord is a part of the brachial plexus. It consists of contributions from all of the roots of the brachial plexus. The posteriorcord gives...
spinal cord is elliptical in cross section, being compressed dorsolaterally. Two prominent grooves, or sulci, run along its length. The posterior median...
the axillary artery. The posteriorcord is formed from the three posterior divisions of the trunks (C5-C8, T1) The lateral cord is formed from the anterior...
bones, and joints.[citation needed] The posterior horn extends to the surface of the spinal cord. The posterior grey column is subdivided into six layers...
Posterior spinal artery syndrome (PSAS), also known as posterior spinal cord syndrome, is a type of incomplete spinal cord injury. PSAS is the least commonly...
body, that originates from the brachial plexus (upper trunk, posterior division, posteriorcord) at the level of the axilla (armpit) and carries nerve fibers...
nerves C5 and C6, via the superior trunk, posterior division of the superior trunk, and the posteriorcord of the brachial plexus. Studies have shown...
originates as a terminal branch of the posteriorcord of the brachial plexus. It goes through the arm, first in the posterior compartment of the arm, and later...
thoracodorsal nerve is a branch of the posteriorcord of the brachial plexus, and is made up of fibres from the posterior divisions of all three trunks of the...
Anatomically, the boundaries of the axilla are: The lower posterior boundary is called the posterior axillary fold and this is a compound structure consisting...
(or posterior root of spinal nerve or sensory root) is one of two "roots" which emerge from the spinal cord. It emerges directly from the spinal cord, and...
Axons originating from the posterior thoracic nucleus which ascend contralaterally through the lateral funiculus of the spinal cord are named ventral spinocerebellar...
cord function in stable patients as well as those who require cervical spinal decompression. Spinal cord injury Anterior cord syndrome Posteriorcord...
The upper (superior) subscapular nerve is the first branch of the posteriorcord of the brachial plexus. The upper subscapular nerve contains axons from...
in the posterior compartment of the forearm, which is mostly the extensor muscles of the hand. The radial nerve arises from the posteriorcord of the...
A spinal cord injury (SCI) is damage to the spinal cord that causes temporary or permanent changes in its function. It is a destructive neurological and...
axilla. The other cords of the brachial plexus are the posteriorcord and medial cord. The lateral cord gives rise to the following nerves from proximal to...
nerve) Lower subscapular nerve The subscapular nerves originate from the posteriorcord of the brachial plexus. These nerves are part of a group of nerves that...
The posterior median sulcus is the posterior end of the posterior median septum of neuroglia of the spinal cord. The septum varies in depth from 4 to...
known as the inferior subscapular nerve, is the third branch of the posteriorcord of the brachial plexus. It innervates the inferior portion of the subscapularis...
axilla. The other cords of the brachial plexus are the posteriorcord and lateral cord. The medial cord gives rise to the following nerves from proximal to...
spans the length of the spinal cord. It supplies the grey and white posterior columns of the spinal cord. The posterior spinal artery arises above the...
the brachial plexus. For example, the posteriorcord of the brachial plexus is so named because it lies posterior to the second part of the artery. The...
distal to the upper subscapular nerve. These three nerves branch off the posteriorcord of the brachial plexus. The nerves that innervate teres major consist...
Cells in this nucleus project to deeper laminae of the spinal cord, to the posterior column nuclei, and to other supraspinal relay centers including...
cornu, anterior horn of spinal cord, motor horn or ventral horn) is the front column of grey matter in the spinal cord. It is one of the three grey columns...
of the posterior compartment of the forearm are innervated by the radial nerve and its branches. The radial nerve arises from the posteriorcord of the...
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