“Palmar branch of the median nerve”的意思、由来-开放百科全书

词条

Palmar branch of the median nerve

释义

Branches
Clinical significance
Additional images
References

{{Infobox nerve
| Name = Palmar branch of the median nerve
| Latin = ramus palmaris nervi mediani
| Image = Nerves of the left upper extremity.gif
| Caption = Nerves of the left upper extremity.
| Image2 = Gray815.png
| Caption2 = Superficial palmar nerves.
| Innervates =
| BranchFrom = median nerve
| BranchTo =
}}

The palmar branch of the median nerve is a branch of the median nerve which arises at the lower part of the forearm.

Branches

It pierces the palmar carpal ligament, and divides into a lateral and a medial branch;

The lateral branch supplies the skin over the ball of the thumb, and communicates with the volar branch of the lateral antebrachial cutaneous nerve.
The medial branch supplies the skin of the palm and communicates with the palmar cutaneous branch of the ulnar.

Clinical significance

Unlike most of the median nerve innervation of the hand, the palmar branch travels superficial to the Flexor retinaculum of the hand. Therefore, this portion of the median nerve usually remains functioning during carpal tunnel syndrome.^[1]

Additional images

References

1. ^{{cite book |author1=Ellis, Harold |author2=Susan Standring |author3=Gray, Henry David |title=Gray's anatomy: the anatomical basis of clinical practice |publisher=Elsevier Churchill Livingstone |location=St. Louis, Mo |year=2005 |isbn=0-443-07168-3 |oclc= |doi= |page=700}}

http://nervesurgery.wustl.edu/NerveImages/Anatomy%20and%20Physiology/AP-Median-Nerve---IMG_3299.jpg

1 : Nerves of the upper limb

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