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Lower limb. Foot. Cutaneous innervation of the lower limbs is the nerve supply to areas of the skin of the lower limbs (including the feet ) which are supplied by specific cutaneous nerves . Modern texts are in agreement about which areas of the skin are served by which nerves , but there are minor variations in some of the details.
Composition and central connections of the spinal nerves; Pathways from the brain to the spinal cord; The meninges of the brain and medulla spinalis; The cerebrospinal fluid; The cranial nerves. The olfactory nerves; The optic nerve; The oculomotor nerve; The trochlear nerve; The trigeminal nerve; The abducens nerve; The facial nerve; The ...
Cutaneous innervation of the upper limbs is the nerve supply to areas of the skin of the upper limbs (including the arm, forearm, and hand) which are supplied by specific cutaneous nerves. Modern texts are in agreement about which areas of the skin are served by which cutaneous nerves, but there are minor variations in some of the details.
The median nerve innervates the flexors of the wrist and digits, the abductors and opponens of the thumb, the first and second lumbricals. The ulnar nerve innervates the remaining intrinsic muscles of the hand. [3] [4] All muscles of the hand are innervated by the brachial plexus (C5–T1) and can be classified by innervation: [1] [4] [5]
It supplies the palmaris brevis and the skin on the ulnar side of the hand. [2] [3] It also divides into a common palmar digital nerve and a proper palmar digital nerve. [2] The proper digital branches are distributed to the fingers in the same manner as those of the median nerve.
The proper palmar digital nerves of the ulnar nerve are nerves of the hand.. The superficial branch of the ulnar nerve divides into a proper palmar digital nerve, which supplies the medial side of the fifth digit and a common palmar digital nerve which divides into two proper palmar digital nerves that supply the adjacent sides of the fourth and fifth digits.
The ulnar nerve is exclusively responsible for the innervations of the hypothenar eminence. Both nerves contribute to the innervations of the midpalmar group. [8] The innervation of these muscles by the median nerve is unusual, as most of the intrinsic muscles on the palm of the hand are supplied by the ulnar nerve.
Diagram of segmental distribution of the cutaneous nerves of the right upper extremity. ... Dorsal digital nerves of radial nerve are branches on the dorsum of the hand.