Transmits nerve impulse from cell body to another neuron. (or toward a muscle or gland) May give off Collateral Branches and divides forming many ternimal branchesthat end in synaptic terminals.
Cellular Sheath (Neurilemma)
Support cells known as Schwann cells. One of the Axons of many neurons outer nucleated cytoplasmic layar, also known as Schwann Sheath.
Myelin Sheath
The inner axon sheath covering rich in lipids. A segmented covering formed by Schwann cells around axons and dendrites of many peripheral nerves. An insulator and helps conduct nerve impulses.
Neurotransmitters
Secreted by the Synaptic Terminals, they are chemical enabling impulses to transmit one neuron to another. Specialize in sending neural impulses.
Synaptic Cleft
Microscopic narrow gap between two neurons. Neurochemicals are secreted across this cleft or junction to transmit nerve impulses.
Synapse
Junction between two neurons and site of impulse transmission where neurotransmitters are released.
Dendrites
Highly short branched fibers . Are specialized to receive neural impulses (nerve transmission) to project to the cell body.
Soma (Cell body)
Nucleus and other organellos within body. Carry electronic impulses from dendrites to axon.
Schwann Cells
Surround and form myelin sheath around larger nerve fibers in PNS. Vital to the process of peripheral nerve fiber regeneration.
Ganglion
Bundle of nerves located outside of CNS.
Nodes of Ranvier
Gaps between individual schwann cells along myelinated nerve fiber.