In the palm of the
hand
A hand is a prehensile, multi-fingered appendage located at the end of the forearm or forelimb of primates such as humans, chimpanzees, monkeys, and lemurs. A few other vertebrates such as the koala (which has two opposable thumbs on each "h ...
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.
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
Index (or its plural form indices) may refer to:
Arts, entertainment, and media Fictional entities
* Index (''A Certain Magical Index''), a character in the light novel series ''A Certain Magical Index''
* The Index, an item on a Halo megastru ...
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
Middle or The Middle may refer to:
* Centre (geometry), the point equally distant from the outer limits.
Places
* Middle (sheading), a subdivision of the Isle of Man
* Middle Bay (disambiguation)
* Middle Brook (disambiguation)
* Middle Creek (d ...
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
In human anatomy, the ulnar nerve is a nerve that runs near the ulna bone. The ulnar collateral ligament of elbow joint is in relation with the ulnar nerve. The nerve is the largest in the human body unprotected by muscle or bone, so injury is ...
and sometimes sends a twig to the third Lumbricalis.
Additional images
File:Gray811and813.PNG, Cutaneous nerves of right upper extremity.
File:Gray812and814.PNG, Diagram of segmental distribution of the cutaneous nerves of the right upper extremity.
File:Slide6gggg.JPG, Common palmar digital nerves
File:Slide6RRR.JPG, Common palmar digital branches of median nerve
File:Slide5PPP.JPG, Common palmar digital branches of median nerve
File:Slide10AAAA.JPG, Common palmar digital branches of median nerve
File:Slide12BBBB.JPG, Common palmar digital branches of median nerve
File:Slide7HHHH.JPG, Common palmar digital branches of median nerve
File:Slide7IIII.JPG, Common palmar digital branches of median nerve
File:Slide8VVVVV.JPG, Common palmar digital branches of median nerve
See also
*
Proper palmar digital nerves of median nerve
References
External links
*
Nerves of the upper limb
{{Neuroanatomy-stub