Deep branch of ulnar nerve
Branch of the ulnar nerve
The deep branch of the ulnar nerve is a motor branch of the ulnar nerve that primarily innervates the intrinsic muscles of the hand. It is responsible for the fine motor control of the hand and plays a crucial role in hand movements.
Anatomy[edit | edit source]
The deep branch of the ulnar nerve originates from the ulnar nerve at the level of the wrist. It passes through the Guyon's canal, a fibro-osseous tunnel located at the wrist, and then travels deep into the hand.
Course[edit | edit source]
After passing through the Guyon's canal, the deep branch of the ulnar nerve curves around the hook of the hamate bone and enters the deep part of the hand. It then divides into several smaller branches that innervate various muscles of the hand.
Innervation[edit | edit source]
The deep branch of the ulnar nerve innervates the following muscles:
- Hypothenar muscles: These include the abductor digiti minimi, flexor digiti minimi brevis, and opponens digiti minimi.
- Interossei muscles: Both the dorsal and palmar interossei muscles.
- Adductor pollicis: This muscle is responsible for the adduction of the thumb.
- Deep head of flexor pollicis brevis: This muscle assists in the flexion of the thumb.
Function[edit | edit source]
The primary function of the deep branch of the ulnar nerve is to provide motor innervation to the intrinsic muscles of the hand. These muscles are essential for the fine motor movements of the fingers, such as pinching, gripping, and manipulating small objects.
Clinical significance[edit | edit source]
Injury to the deep branch of the ulnar nerve can result in weakness or paralysis of the intrinsic muscles of the hand. This can lead to a condition known as ulnar nerve palsy, which is characterized by a loss of fine motor control and a characteristic claw-like deformity of the hand.
See also[edit | edit source]
- Ulnar nerve
- Guyon's canal
- Hypothenar muscles
- Interossei muscles
- Adductor pollicis
- Flexor pollicis brevis
References[edit | edit source]
Transform your life with W8MD's budget GLP1 injections from $125
W8MD offers a medical weight loss program NYC and a clinic to lose weight in Philadelphia. Our W8MD's physician supervised medical weight loss centers in NYC provides expert medical guidance, and offers telemedicine options for convenience.
Why choose W8MD?
- Comprehensive care with FDA-approved weight loss medications including:
- loss injections in NYC both generic and brand names:
- weight loss medications including Phentermine, Qsymia, Diethylpropion etc.
- Accept most insurances for visits or discounted self pay cost.
- Generic weight loss injections starting from just $125.00 for the starting dose
- In person weight loss NYC and telemedicine medical weight loss options in New York city available
- Budget GLP1 weight loss injections in NYC starting from $125.00 biweekly with insurance!
Book Your Appointment
Start your NYC weight loss journey today at our NYC medical weight loss, and Philadelphia medical weight loss Call (718)946-5500 for NY and 215 676 2334 for PA
Search WikiMD
Ad.Tired of being Overweight? Try W8MD's NYC physician weight loss.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro / Zepbound) available. Call 718 946 5500.
Advertise on WikiMD
WikiMD's Wellness Encyclopedia |
Let Food Be Thy Medicine Medicine Thy Food - Hippocrates |
Translate this page: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
தமிழ்,
తెలుగు,
Urdu,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
বাংলা
European
español,
Deutsch,
français,
Greek,
português do Brasil,
polski,
română,
русский,
Nederlands,
norsk,
svenska,
suomi,
Italian
Middle Eastern & African
عربى,
Turkish,
Persian,
Hebrew,
Afrikaans,
isiZulu,
Kiswahili,
Other
Bulgarian,
Hungarian,
Czech,
Swedish,
മലയാളം,
मराठी,
ਪੰਜਾਬੀ,
ગુજરાતી,
Portuguese,
Ukrainian
Medical Disclaimer: WikiMD is not a substitute for professional medical advice. The information on WikiMD is provided as an information resource only, may be incorrect, outdated or misleading, and is not to be used or relied on for any diagnostic or treatment purposes. Please consult your health care provider before making any healthcare decisions or for guidance about a specific medical condition. WikiMD expressly disclaims responsibility, and shall have no liability, for any damages, loss, injury, or liability whatsoever suffered as a result of your reliance on the information contained in this site. By visiting this site you agree to the foregoing terms and conditions, which may from time to time be changed or supplemented by WikiMD. If you do not agree to the foregoing terms and conditions, you should not enter or use this site. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates, categories Wikipedia, licensed under CC BY SA or similar.
Contributors: Prab R. Tumpati, MD