NEET BIOLOGY

Detailed explanation-1: -Axon – The long, thin structure in which action potentials are generated; the transmitting part of the neuron. After initiation, action potentials travel down axons to cause release of neurotransmitter. Dendrite – The receiving part of the neuron.

Detailed explanation-2: -Neurons are made of three parts Neurons receive signals in a short antennae-like part called the dendrite, and send signals to other neurons with a long cable-like part called the axon. An axon can be up to a meter long.

Detailed explanation-3: -An axon (from Greek 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.

Detailed explanation-4: -Every neuron has only a single axon, a thin cylindrical process that can ramify and extend up to 1m. The axon arises from a specialized region of the soma called the axon hillock where an all or none signal (the action potential) is initiated once a critical threshold is reached. The presynaptic terminals.

Detailed explanation-5: -axon, also called nerve fibre, portion of a nerve cell (neuron) that carries nerve impulses away from the cell body. A neuron typically has one axon that connects it with other neurons or with muscle or gland cells. Some axons may be quite long, reaching, for example, from the spinal cord down to a toe.