Contents
- 1 What is the Antebrachial cutaneous nerve?
- 2 Where is the lateral antebrachial cutaneous nerve located?
- 3 What does the medial antebrachial cutaneous nerve come from?
- 4 Which nerve passes through the middle of the arm?
- 5 What does the lateral antebrachial cutaneous nerve do?
- 6 Where does the lateral cutaneous nerve originate?
- 7 Where does the lateral cutaneous nerve of the forearm pass?
- 8 Which is cutaneous nerve passes behind the cephalic vein?
- 9 Where is the dorsal branch of the radial nerve located?
What is the Antebrachial cutaneous nerve?
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.
Where is the lateral antebrachial cutaneous nerve located?
forearm
Anatomical terms of neuroanatomy The lateral antebrachial cutaneous nerve (or lateral cutaneous nerve of forearm) (branch of musculocutaneous nerve, also sometimes spelled “antebrachial”) passes behind the cephalic vein, and divides, opposite the elbow-joint, into a volar and a dorsal branch.
What does the medial antebrachial cutaneous nerve come from?
[1] Specifically, the medial antebrachial cutaneous nerve provides sensory innervation of the medial forearm as well as the skin overlying the olecranon. [2] It emerges from the medial cord of the brachial plexus and has sensory cell bodies located in C8 and T1.
Why does my lateral Antebrachial Cutan hurt?
Lateral antebrachial cutaneous neuropathy is an uncommon, but easily overlooked, cause of elbow pain in the throwing athlete. Compression of the lateral antebrachial cutaneous nerve by the biceps tendon occurs at the nerve’s exit point from the brachial fascia just proximal to the elbow flexion crease.
What are the two main Antebrachial vessels?
The brachial artery is the major blood vessel of the (upper) arm….
| Brachial artery | |
|---|---|
| Source | axillary artery |
| Branches | Profunda brachii Superior ulnar collateral artery Inferior ulnar collateral artery Radial artery Ulnar artery |
| Vein | brachial vein |
| Supplies | biceps brachii muscle, triceps brachii muscle, coracobrachialis |
Which nerve passes through the middle of the arm?
| Median nerve | |
|---|---|
| Diagram from Gray’s anatomy, depicting the peripheral nerves of the upper extremity, amongst others the median nerve | |
| Details | |
| From | Lateral cord and Medial cord |
| Innervates | Anterior compartment of the forearm (with two exceptions), Thenar eminence, Lumbricals, skin of the hand |
What does the lateral antebrachial cutaneous nerve do?
The lateral antebrachial cutaneous nerve provides sensory innervation to the skin on lateral portion of the arm (radial side). Damage to the lateral antebrachial cutaneous nerve will result in a loss of sensation on the skin of the lateral forearm.
Where does the lateral cutaneous nerve originate?
The lateral femoral cutaneous nerve, like the femoral nerve, is formed from the posterior divisions of the anterior rami of L2 and L3 spinal nerves. It courses on the anterior surfaces of the iliacus muscle after becoming secured in the fibrous sheath overlying the iliacus muscle, the iliac fascia.
What is the brachialis muscle?
The brachialis is an elbow flexor that originates from the distal anterior humerus and inserts onto the ulnar tuberosity. The brachialis is one of the largest elbow flexors and provides pure flexion of the forearm at the elbow. [2] It does not provide any supination or pronation of the forearm.
Where does the lateral antebrachial cutaneous nerve originate?
Course of Lateral Antebrachial Cutaneous Nerve. Originates from the musculocutaneous nerve passes behind the cephalic vein. pierces the deep fascia lateral to the biceps tendon. divides at the level of the elbow joint into volar and dorsal branches.
Where does the lateral cutaneous nerve of the forearm pass?
The lateral antebrachial cutaneous nerve (or lateral cutaneous nerve of forearm) (branch of musculocutaneous nerve, also sometimes spelled “antebrachial”) passes behind the cephalic vein, and divides, opposite the elbow-joint, into a volar and a dorsal branch. Diagram of segmental distribution of the cutaneous nerves of the right upper extremity.
Which is cutaneous nerve passes behind the cephalic vein?
Anterior view. (“Lat. antebrach. cutan.” visible in purple.) The lateral antebrachial cutaneous nerve (or lateral cutaneous nerve of forearm) (branch of musculocutaneous nerve, also sometimes spelled “antebrachial”) passes behind the cephalic vein, and divides, opposite the elbow-joint, into a volar and a dorsal branch.
Where is the dorsal branch of the radial nerve located?
The dorsal branch (ramus dorsalis; posterior branch) descends, along the dorsal surface of the radial side of the forearm to the wrist. It supplies the skin of the lower two-thirds of the dorso-lateral surface of the forearm, communicating with the superficial branch of the radial nerve and the dorsal antebrachial cutaneous branch of the radial.