cutaneous innervation of the upper limbs
Information about cutaneous innervation of the upper limbs
) Front view. |
Modern texts are in agreement about which areas of the skin are served by which nerves, but there are minor variations in some of the details. The borders designated by the diagrams in the 1918 edition of Gray's Anatomy, provided below, are similar but not identical to those generally accepted today.
Arm and shoulder
- Supraclavicular nerves (yellow)
- Axillary nerve (blue). Also Superior lateral cutaneous nerve of arm.
- Inferior lateral cutaneous nerve of arm - Near blue "axillary" area, but actually branches from radial nerve. Most modern sources distinguish the superior and inferior, but some still include a single "lateral brachial cutaneous nerve". )
- Intercostobrachial nerve (purple)
- Medial cutaneous nerve of arm (yellow) - labeled as "medial brachial cutaneous".
- Posterior cutaneous nerve of arm (pink) - not explicitly distinguished from that of Posterior cutaneous nerve of forearm on diagram, but is often distinguished in modern terminology
Forearm
- Lateral cutaneous nerve of forearm (purple) - labeled as "lat. antibrach. cut.". Branch of musculocutaneous nerve.
- Medial cutaneous nerve of forearm (green) - labeled as "medial antibrach. cutaneous". Branch of medial cord.
- Posterior cutaneous nerve of forearm (pink) - labeled as "dorsal antibrach. cut." Branch of radial nerve.
Hand
- Superficial branch of the radial nerve (yellow)
- Median nerve (pink)
- Superficial branch of ulnar nerve (blue)
External links
- Overview at luc.edu
- Overview at neuroguide.com
- Hand kinesiology at UK nerves/dermatome.htm - arms
- Anatomy at Dartmouth arteries-nerves%20UE/nerve7 - arms
Nerves of upper limbs (primarily): the brachial plexus | |
|---|---|
| Supraclavicular | dorsal scapular • suprascapular • to the subclavius • long thoracic |
| Infraclavicular: lateral cord | musculocutaneous (lateral cutaneous of forearm) • lateral pectoral • lateral head of median (anterior interosseous, palmar, common palmar digital, proper palmar digital) |
| Infraclavicular: medial cord | medial pectoral • medial cutaneous of forearm • medial cutaneous of arm • ulnar (muscular branches, dorsal branch, palmar branch, superficial branch, deep branch) • medial head of median |
| Infraclavicular: posterior cord | subscapular (upper, lower) • thoracodorsal • axillary (superior lateral cutaneous of arm) • radial (muscular, inferior lateral cutaneous of arm, posterior cutaneous of arm, posterior cutaneous of forearm, superficial branch, deep branch, posterior interosseous) |
| Other | cutaneous innervation of the upper limbs |
Skin layers: epidermis, dermis, and subcutis, showing a hair follicle, sweat gland & sebaceous gland.]] In zootomy and dermatology, skin is the largest organ of the integumentary system made up of multiple layers of epithelial tissues that guard underlying muscles and organs.
..... Click the link for more information.
..... Click the link for more information.
A nerve is an enclosed, cable-like bundle of axons (the long, slender projection of a neuron). Neurons are sometimes called nerve cells, though this term is technically imprecise since many neurons do not form nerves, and nerves also include the glial cells that
..... Click the link for more information.
..... Click the link for more information.
Henry Gray's Anatomy of the Human Body (or Gray's Anatomy as it has commonly been shortened) is an English-language human anatomy textbook widely regarded as a classic work on the subject.
..... Click the link for more information.
..... Click the link for more information.
The supraclavicular nerves (descending branches) arise from the third and fourth cervical nerves; they emerge beneath the posterior border of the Sternocleidomastoideus, and descend in the posterior triangle of the neck beneath the platysma and deep cervical fascia.
..... Click the link for more information.
..... Click the link for more information.
The axillary nerve is a nerve of the human body, that comes off the posterior cord of the brachial plexus at the level of the axilla (armpit) and carries nerve fibers from C5 and C6.
..... Click the link for more information.
..... Click the link for more information.
The superior lateral cutaneous nerve of arm (or superior lateral brachial cutaneous nerve) is the continuation of the posterior cord of the axillary nerve, after it pierces the deep fascia.
..... Click the link for more information.
..... Click the link for more information.
The inferior lateral cutaneous nerve of arm (also called the inferior lateral brachial cutaneous nerve) is a branch of the radial nerve that provides sensory innervation to the lower, lateral aspect of the arm.
..... Click the link for more information.
..... Click the link for more information.
The radial nerve is a nerve in the human body that supplies the triceps brachii muscle of the arm, as well as all 12 muscles in the posterior osteofascial compartment of the forearm.
..... Click the link for more information.
..... Click the link for more information.
intercostobrachial nerve.
It pierces the Intercostalis externus and the Serratus anterior, crosses the axilla to the medial side of the arm, and joins with a filament from the medial brachial cutaneous nerve.
..... Click the link for more information.
It pierces the Intercostalis externus and the Serratus anterior, crosses the axilla to the medial side of the arm, and joins with a filament from the medial brachial cutaneous nerve.
..... Click the link for more information.
The medial brachial cutaneous nerve (lesser internal cutaneous nerve; nerve of Wrisberg, medial cutaneous nerve of arm) is distributed to the skin on the medial brachial side of the arm.
..... Click the link for more information.
..... Click the link for more information.
The posterior cutaneous nerve of arm (internal cutaneous branch of musculospiral, posterior brachial cutaneous nerve) 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.
..... Click the link for more information.
..... Click the link for more information.
The dorsal antibrachial cutaneous nerve (external cutaneous branch of musculospiral, posterior antebrachial cutaneous nerve, posterior cutaneous nerve of forearm) perforates the lateral head of the Triceps brachii at its attachment to the humerus.
..... Click the link for more information.
..... Click the link for more information.
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.
..... Click the link for more information.
..... Click the link for more information.
The musculocutaneous nerve arises from the lateral cord of the brachial plexus, opposite the lower border of the Pectoralis minor, its fibers being derived from the fifth, sixth, and seventh cervical nerves.
..... Click the link for more information.
..... Click the link for more information.
The Medial Antebrachial Cutaneous Nerve (internal cutaneous nerve, medial cutaneous nerve of forearm, also sometimes misspelled "antibrachial") arises from the medial cord of the brachial plexus.
..... Click the link for more information.
..... Click the link for more information.
The Medial cord is a division of the brachial plexus.
The medial cord gives rise to the following nerves:
..... Click the link for more information.
The medial cord gives rise to the following nerves:
- The median pectoral nerve, C8 and T1, to the pectoralis muscle
- The medial brachial cutaneous nerve, T1
..... Click the link for more information.
The dorsal antibrachial cutaneous nerve (external cutaneous branch of musculospiral, posterior antebrachial cutaneous nerve, posterior cutaneous nerve of forearm) perforates the lateral head of the Triceps brachii at its attachment to the humerus.
..... Click the link for more information.
..... Click the link for more information.
The radial nerve is a nerve in the human body that supplies the triceps brachii muscle of the arm, as well as all 12 muscles in the posterior osteofascial compartment of the forearm.
..... Click the link for more information.
..... Click the link for more information.
The superficial branch of the radial nerve passes along the front of the radial side of the forearm to the commencement of its lower third.
It lies at first slightly lateral to the radial artery, concealed beneath the Brachioradialis.
..... Click the link for more information.
It lies at first slightly lateral to the radial artery, concealed beneath the Brachioradialis.
..... Click the link for more information.
The median nerve is a nerve that runs down the arm and forearm. It is one of the five main nerves originating from the brachial plexus.
The median nerve is formed from parts of the medial and lateral cords of the brachial plexus, and continues down the arm to enter the
..... Click the link for more information.
The median nerve is formed from parts of the medial and lateral cords of the brachial plexus, and continues down the arm to enter the
..... Click the link for more information.
The superficial branch of the ulnar nerve supplies the palmaris brevis and the skin on the ulnar side of the hand, and divides into a proper palmar digital nerve for the ulnar side of the little finger, and a common palmar digital nerve
..... Click the link for more information.
..... Click the link for more information.
University of Kansas (often referred to as KU or just Kansas) is an institution of higher learning in Lawrence, Kansas. The main campus resides atop Mount Oread. The University was founded in 1865 by the citizens of Lawrence under a charter from the Kansas Legislature.
..... Click the link for more information.
..... Click the link for more information.
Dartmouth College is a private, coeducational university located in Hanover, New Hampshire, USA. Incorporated as "Trustees of Dartmouth College,"[6][7]
..... Click the link for more information.
..... Click the link for more information.
A nerve is an enclosed, cable-like bundle of axons (the long, slender projection of a neuron). Neurons are sometimes called nerve cells, though this term is technically imprecise since many neurons do not form nerves, and nerves also include the glial cells that
..... Click the link for more information.
..... Click the link for more information.
In human anatomy, the upper limb (also upper extremity) refers to what in common English is known as the arm, that is, the region of the shoulder to the fingertips. It includes the entire limb, and thus, is not synonymous with the term upper arm.
..... Click the link for more information.
..... Click the link for more information.
The brachial plexus is an arrangement of nerve fibres, running from the spine, specifically from above the fifth cervical vertebra to underneath the first thoracic vertebra (C5-T1). It proceeds through the neck, the axilla (armpit region) and into the arm.
..... Click the link for more information.
..... Click the link for more information.
The dorsal scapular nerve arises from the brachial plexus, usually from the plexus root (anterior ramus) of C5.
It provides motor innervation to the rhomboid muscles, which pull the scapula towards the spine and levator scapulae muscle, which elevates the scapula.
..... Click the link for more information.
It provides motor innervation to the rhomboid muscles, which pull the scapula towards the spine and levator scapulae muscle, which elevates the scapula.
..... Click the link for more information.
The suprascapular nerve arises from the trunk formed by the union of the fifth and sixth cervical nerves. It innervates the supraspinatus muscles and infraspinatus muscles.
..... Click the link for more information.
..... Click the link for more information.
The Nerve to the Subclavius (or subclavian nerve) is a small filament, which arises from the point of junction of the fifth and sixth cervical nerves; it descends to the subclavius muscle in front of the third part of the subclavian artery and the lower trunk of the plexus,
..... Click the link for more information.
..... Click the link for more information.
The long thoracic nerve (external respiratory nerve of Bell; posterior thoracic nerve) supplies the Serratus anterior. This nerve characteristically arises by three roots from the fifth, sixth, and seventh cervical nerves (C5-C7) but the root from C7 may be absent.
..... Click the link for more information.
..... Click the link for more information.
This article is copied from an article on Wikipedia.org - the free encyclopedia created and edited by online user community. The text was not checked or edited by anyone on our staff. Although the vast majority of the wikipedia encyclopedia articles provide accurate and timely information please do not assume the accuracy of any particular article. This article is distributed under the terms of GNU Free Documentation License.