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The subclavian nerve, also known as the nerve to the subclavius, is a small branch of the upper trunk of the brachial plexus. It contains axons from C5 and C6 . It innervates the subclavius muscle .
The intrinsic muscle groups are the thenar and hypothenar (little finger) muscles; the interossei muscles (four dorsally and three volarly) originating between the metacarpal bones; and the lumbrical muscles arising from the deep flexor (and which are special because they have no bony origin) to insert on the dorsal extensor hood mechanism.
The subclavius is a small triangular muscle, placed between the clavicle and the first rib. [1] Along with the pectoralis major and pectoralis minor muscles , the subclavius muscle makes up the anterior axioappendicular muscles , also known as anterior wall of the axilla .
The brachial plexus is a network of nerves (nerve plexus) formed by the anterior rami of the lower four cervical nerves and first thoracic nerve (C5, C6, C7, C8, and T1).This plexus extends from the spinal cord, through the cervicoaxillary canal in the neck, over the first rib, and into the armpit, it supplies afferent and efferent nerve fibers to the chest, shoulder, arm, forearm, and hand.
The rest of this surface is occupied by a groove, which gives attachment to the Subclavius; the coracoclavicular fascia, which splits to enclose the muscle, is attached to the margins of the groove. Not infrequently this groove is subdivided longitudinally by a line which gives attachment to the intermuscular septum of the Subclavius.
It occupies the interval between the pectoralis minor and subclavius, and protects the axillary vein and artery, and axillary nerve. [ 1 ] Traced upward, it splits to enclose the subclavius, and its two layers are attached to the clavicle , one in front of and the other behind the muscle; the deep layer fuses with the deep cervical fascia and ...
A new study found that Americans 40 and older could live over five years longer if they exercised as much as the top 25% of the population. Here's what to know.
The pectoral fascia is a thin layer of tissue over the pectoralis major, extending toward the latissimus dorsi muscle on the back. Along with the pectoralis major and pectoralis minor, the subclavius muscle forms the axilla or armpit. The subclavius moves the shoulder downward and forward. Serratus anterior is