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Sixth nerve palsy, or abducens nerve palsy, is a disorder associated with dysfunction of cranial nerve VI (the abducens nerve), which is responsible for causing contraction of the lateral rectus muscle to abduct (i.e., turn out) the eye. [1] The inability of an eye to turn outward, results in a convergent strabismus or esotropia of which the ...
Median nerve palsy. Diagram from Gray's anatomy, depicting the nerves of the upper extremity, amongst others the median nerve. Injuries to the arm, forearm or wrist area can lead to various nerve disorders. One such disorder is median nerve palsy. The median nerve controls the majority of the muscles in the forearm.
Ulnar tunnel syndrome, also known as Guyon's canal syndrome or Handlebar palsy, is ulnar neuropathy at the wrist where it passes through the ulnar tunnel (Guyon's canal). [1] The most common presentation is a palsy of the deep motor branch of the ulnar nerve causing weakness of the interosseous muscles. Ulnar tunnel syndrome is usually caused ...
The suprascapular, axillary, and radial nerves. Wrist drop is a medical condition in which the wrist and the fingers cannot extend at the metacarpophalangeal joints. The wrist remains partially flexed due to an opposing action of flexor muscles of the forearm. As a result, the extensor muscles in the posterior compartment remain paralyzed.
Ape hand deformity. Ape hand deformity is a deformity in humans who cannot move the thumb away from the rest of the hand. It is an inability to abduct the thumb. [1] Abduction of the thumb refers to the specific capacity to orient the thumb perpendicularly to the ventral (palmar) surface of the hand. Opposition refers specifically the ability ...
The anterior interosseous nerve is a branch of the median nerve, with a large sensory branch to the wrist bones, which arises just below the elbow. It passes distally, anteriorly along the interosseous membrane and innervates flexor pollicis longus, flexor digitorum profundus to index and middle finger as well as pronator quadratus, and supplies sensory feedback from the wrist bones, i.e. the ...
The ulnar nerve runs from the shoulder to the hand, and damage to it results in the Ulnar claw. It is linked to palsy, which is a result of peripheral neuropathy. There is a range of ways that damage to the nerve can occur. Leaning on the elbow can lead to long-term wear and tear due to the prolonged pressure of the weight of the upper body.
Radial neuropathy. The suprascapular, axillary, and radial nerves. Radial neuropathy is a type of mononeuropathy which results from acute trauma to the radial nerve that extends the length of the arm. [3] It is known as transient paresthesia when sensation is temporarily abnormal. [4]
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