"Funny bone" redirects here. For the comedy-drama film, see Funny Bones. For the comedy club, see The Funny Bone.
Ulnar nerve
Click image to enlarge - ulnar nerve is visible in lower left
Nerves of the left upper extremity. (Ulnar labeled at center left.)
Details
From
C8, T1 (branch from medial cord)
Innervates
Flexor carpi ulnaris flexor digitorum profundus lumbrical muscles opponens digiti minimi flexor digiti minimi abductor digiti minimi interossei adductor pollicis
Identifiers
Latin
nervus ulnaris
MeSH
D014459
TA98
A14.2.03.040
TA2
6449
FMA
37319
Anatomical terms of neuroanatomy
[edit on Wikidata]
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 common.[1] This nerve is directly connected to the little finger, and the adjacent half of the ring finger, innervating the palmar aspect of these fingers, including both front and back of the tips, perhaps as far back as the fingernail beds.
This nerve can cause an electric shock-like sensation by striking the medial epicondyle of the humerus posteriorly, or inferiorly with the elbow flexed. The ulnar nerve is trapped between the bone and the overlying skin at this point. This is commonly referred to as bumping one's "funny bone". This name is thought to be a pun, based on the sound resemblance between the name of the bone of the upper arm, the humerus, and the word "humorous".[2] Alternatively, according to the Oxford English Dictionary, it may refer to "the peculiar sensation experienced when it is struck".[3]
^N, Catena; Mg, Calevo; D, Fracassetti; D, Moharamzadeh; C, Origo; M, De Pellegrin (2019). "Risk of Ulnar Nerve Injury During Cross-Pinning in Supine and Prone Position for Supracondylar Humeral Fractures in Children: A Recent Literature Review". European Journal of Orthopaedic Surgery & Traumatology: Orthopedie Traumatologie. 29 (6): 1169–1175. doi:10.1007/s00590-019-02444-0. PMID 31037406. S2CID 139108013. Retrieved 2020-05-22.
^Hendrickson, Robert A. (2004). The Facts on File Encyclopedia of Word and Phrase Origins (Facts on File Writer's Library). New York: Checkmark Books. p. 281. ISBN 0-8160-5992-6.
^"Welcome to the new OED Online: Oxford English Dictionary". Dictionary.oed.com. Retrieved 2012-03-20.
the ulnarnerve is a nerve that runs near the ulna bone. The ulnar collateral ligament of elbow joint is in relation with the ulnarnerve. The nerve is...
Idiopathic Ulnar neuropathy at the elbow (aka Ulnarnerve entrapment or Cubital tunnel syndrome) is a condition where pressure on the ulnarnerve as it passes...
An ulnar claw, also known as claw hand or ‘Spinster’s Claw’, is a deformity or an abnormal attitude of the hand that develops due to ulnarnerve damage...
branch of the ulnarnerve causing weakness of the interosseous muscles. Many are associated with a ganglion cyst pressing on the ulnarnerve, but most are...
recurrent branch of the median nerve and deep branch of the ulnarnerve of the hand. The median nerve is the main nerve of the front of the forearm. It...
branch of the ulnarnerve is a terminal, primarily motor branch of the ulnarnerve. It is accompanied by the deep palmar branch of ulnar artery. It passes...
sciatic, and ulnar nerves require nerve gliding exercise during the rehabilitation period. The most common conditions that require nerve gliding exercise...
are innervated by the ulnarnerve). The radial nerve divides into a deep branch, which becomes the posterior interosseous nerve, and a superficial branch...
Ulnar collateral ligament reconstruction, colloquially known as Tommy John surgery, is a surgical graft procedure where the ulnar collateral ligament...
Froment sign is a special test of the wrist for palsy of the ulnarnerve, specifically, the action of adductor pollicis. To perform the test, a patient...
M or W shape made by the musculocutaneous nerve, lateral cord, median nerve, medial cord, and ulnarnerve. The five roots are the five anterior primary...
of the radial and ulnar nerves via the brachial plexus, and therefore has motor and sensory function in the upper limb. The C8 nerve receives sensory afferents...
towards the ulna. Ulnar deviation is a disorder in which flexion by ulnarnerve innervated muscles is intact while flexion on the median nerve side is not.[citation...
longitudinal canal in the wrist that allows passage of the ulnar artery and ulnarnerve into the hand. (These are named after the ulna, the long bone on the...
interosseous nerve (volar interosseous nerve) is a branch of the median nerve that supplies the deep muscles on the anterior of the forearm, except the ulnar (medial)...
covering the biceps brachii, nearly as far as the elbow. The nerve then runs down the ulnar side of the arm medial to the brachial artery, pierces the deep...
of the ulna by an aponeurosis. Between the two heads passes the ulnarnerve and ulnar artery. The flexor carpi ulnaris inserts onto the pisiform, hook...
the median nerve, while the deep head is innervated by the ulnarnerve (C8-T1). Due to a common interconnection between the median and ulnar nerves in...
innervated by the median nerve. The third and fourth lumbricals (most ulnar two) are innervated by the deep branch of ulnarnerve. This is the usual innervation...
superficial branch of the ulnarnerve is a terminal branch of the ulnarnerve. It supplies the palmaris brevis and the skin on the ulnar side of the hand. It...
the Median nerve may innervate the FPB in 35% of people. It is innervated by the Ulnarnerve in 50% of people and by both the median and ulnar nerves in...
most of the deep muscles, its distribution being similar to that of the ulnarnerve in the hand. It passes obliquely forward with the lateral plantar artery...
side is the pisiform bone, and, somewhat behind the artery, the ulnarnerve. The ulnar artery varies in its origin in the proportion of about one in thirteen...
The dorsal branch of ulnarnerve arises about 5 cm. proximal to the wrist; it passes backward beneath the Flexor carpi ulnaris, perforates the deep fascia...
tunnel is a space of the dorsal medial elbow which allows passage of the ulnarnerve around the elbow. It is bordered medially by the medial epicondyle of...
in the Median sensory, Median motor, and Ulnar sensory nerves. However, conduction velocity of the Sural nerve is not associated with age. In general,...
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