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The intermediate dorsal cutaneous nerve divides into four dorsal digital branches, which supply the medial and lateral sides of the third and fourth, and of the fourth and fifth toes. The lateral dorsal cutaneous nerve from the sural nerve turns into a dorsal digital nerve and supplies the lateral side of the fifth toe.
The medial dorsal cutaneous nerve (internal dorsal cutaneous branch) is the more medial one of the two terminal branches of the superficial fibular nerve (the other being the intermediate dorsal cutaneous nerve). Through its branches, it provides innervation to parts of the dorsal aspects of the first, second, and third toes.
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.
A dermatome is an area of skin that is mainly supplied by afferent nerve fibres from the dorsal root of any given spinal nerve. [1] [2] There are 8 cervical nerves (C1 being an exception with no dermatome), 12 thoracic nerves, 5 lumbar nerves and 5 sacral nerves.
Through its two terminal branches, the intermediate dorsal cutaneous nerve provides sensory innervation to the contiguous dorsal aspects of the 3rd and 4th toes, and of the 4th and 5th toes. [citation needed] It also provides innervation to the skin of the lateral side of the foot and ankle. [citation needed]
The lateral dorsal cutaneous nerve is the continuation/terminal sensory branch of the sural nerve, and is ultimately derived from the 1st sacral nerve (S1). It passes distally along the lateral part of the dorsum of foot .
Blood vessels and nerves can also be affected by the pressure caused by any swelling in the leg. If the pressure becomes great enough, blood flow to the muscle can be blocked, leading to a condition known as compartment syndrome. Severe damage to the nerve and blood vessels around a muscle can cause the muscle to die and amputation might be ...
The optic nerve; The oculomotor nerve; The trochlear nerve; The trigeminal nerve; The abducens nerve; The facial nerve; The vestibulocochlear nerve; The glossopharyngeal nerve; The vagus nerve; The accessory nerve; The hypoglossal nerve; The spinal nerves. The posterior divisions; The anterior divisions; The thoracic nerves; The lumbosacral ...