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Há 2 dias · An axon (from Greek ἄξων áxōn, axis) or nerve fiber (or nerve fibre: see spelling differences) is a long, slender projection of a nerve cell, or neuron, in vertebrates, that typically conducts electrical impulses known as action potentials away from the nerve cell body.
Há 5 dias · neuron, basic cell of the nervous system in vertebrates and most invertebrates from the level of the cnidarians (e.g., corals, jellyfish) upward. A typical neuron has a cell body containing a nucleus and two or more long fibres.
- The Editors of Encyclopaedia Britannica
Há 4 dias · The sensory organs of the head use the cranial nerves for signal transmission, including smell (olfactory nerve), vision (optic, oculomotor, abducens, and trochlear nerves), taste (facial and glossopharyngeal nerves) and hearing (vestibulocochlear nerve).
Há 3 dias · The trigeminal nerve, CN V, is the fifth paired cranial nerve. It is also the largest cranial nerve. In this article, we shall look at the anatomical course of the nerve, and the motor, sensory and parasympathetic functions of its terminal branches.
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Há 4 dias · Five major nerves extend from the brachial plexus into the arm: the axillary, musculocutaneous, median, radial, and ulnar nerves. Each of these nerves carries information in the form of nerve impulses to and from a particular region of the arm and hand.
Há 5 dias · cranial nerve, in vertebrates, any of the paired nerves of the peripheral nervous system that connect the muscles and sense organs of the head and thoracic region directly to the brain.
Há 4 dias · The sciatic nerve is the largest and longest spinal nerve in the human body. Extending from the lumbar and sacral plexuses in the lower back, the sciatic nerve runs through the buttocks and into the thighs.
