Arm Nerves (Left)
L Musculocutaneous Nerve
The musculocutaneous nerve is responsible for very important function we use every day, bending/flexing our elbows. Tasks such as lifting a cup and brushing our teeth can become very difficult if the nerve is not functioning well. Source
L Suprascapular Nerve
The suprascapular nerve is a mixed peripheral nerve containing motor and sensory components. The suprascapular nerve supplies both the supraspinatus and infraspinatus muscles. When this nerve is compromised, there is significant atrophy of the supraspinatus and infraspinatus muscles, and the superior scapular fossa appears hollow. Source
L Axillary Nerve
The axillary nerve is one of five terminal branches of the brachial plexus, supplying motor and sensory branches to the shoulder. Source
L Posterior Brachial Cutaneous
This is a branch of the radial nerve that provides sensory innervation for much of the skin on the back of the arm. It arises in the axilla. It is of small size, and passes through the axilla to the medial side of the area supplying the skin on its dorsal surface nearly as far as the olecranon.
L Deep Branch Radial Nerve
The radial nerve is a nerve in the human body that supplies the posterior portion of the upper limb. The radial nerve and its branches provide motor innervation to the dorsal arm muscles and the extrinsic extensors of the wrists and hands. it also provides cutaneous sensory innervation to most of the back of the hand, except for the back of the little finger and adjacent half of the ring finger.
L Superficial Branch Radial
This is a sensory cutaneous nerve that arises from the radial nerve. It supplies the skin on the dorsum of the hand as well as providing articular branches to joints in the hand. Source
L Dorsal Digital Branches Radial
These are branches on the dorsum of the hand. They run with the dorsal digital arteries.
L Proper Palmar Digital Branches Median
In the palm of the hand the median nerve is covered by the skin and the palmar aponeurosis, and rests on the tendons of the Flexor muscles. Immediately after emerging from under the transverse carpal ligament the median nerve becomes enlarged and flattened and splits into a smaller, lateral, and a larger, medial portion.
L Ulnar Nerve
Is a large superficial nerve of the arm that is a continuation of the medial cord of the brachial plexus, passes around the elbow superficially in a groove between the olecranon and the medial epicondyle of the humerus, and continues down the inner side of the forearm to supply the skin and muscles of the little-finger side of the forearm and hand.
L Radial Nerve
The radial nerve is a nerve in the human body that supplies the posterior portion of the upper limb. The radial nerve and its branches provide motor innervation to the dorsal arm muscles (the triceps brachii and the anconeus) and the extrinsic extensors of the wrists and hands. it also provides cutaneous sensory innervation to most of the back of the hand.
L Medial Brachial Cutaneous
This is a branch of the medial cord of the brachial plexus and supplies the skin of the medial side of the arm as far distal as the medial epicondyle. The medial cutaneous nerve of the arm arises from the medial cord of the brachial plexus and receives fibers form the eighth cervical and first thoracic nerve roots.
L Median Nerve
The median nerve is one of the five main nerves originating from the brachial plexus and provides motor and sensory innervation to parts of the forearm and hand. Source
L Medial Antebrachial Cutaneous
The medial cutaneous nerve of the forearm, also known as the medial antebrachial cutaneous nerve, is a branch of the medial cord of the brachial plexus and supplies the anterior and medial aspects of the forearm as far distal as the wrist. Source
L Lateral Antebrachial Cutaneous
The lateral antebrachial cutaneous nerve provides sensory innervation to the skin on lateral portion of the arm (radial side). This nerve becomes the lateral antebrachial cutaneous nerve once it has emerged from between the biceps brachii and the brachialis muscle, lateral to the biceps brachii tendon, passing behind the cephalic vein. It then divides into two branches, both of which run distally along the radial forearm. Damage to the lateral antebrachial cutaneous nerve will result in a loss of sensation on the skin of the lateral forearm. Source
L Common Palmar Digital Branches Median
The medial portion of the nerve divides into two Common palmar digital nerves (common volar digital nerves). The first of these gives a twig to the second Lumbricalis and runs toward the cleft between the index and middle fingers, where it divides into two proper digital nerves for the adjoining sides of these digits. The second runs toward the cleft between the middle and ring fingers, and splits into two proper digital nerves for the adjoining sides of these digits, it communicates with a branch from the ulnar nerve and sometimes sends a twig to the third Lumbricalis.
L Palmar Branch Ulnar Nerve
Is a branch of ulnar nerve arising in distal forearm and accompanying palmar artery into hand, where it supplies skin of little finger and medial half of ring finger and adjacent parts of palm.