Nervous System

2. a thing or event that evokes a specific functional reaction in an organ or tissue
4. are a diverse class of cells that provide developmental, physiological, and metabolic support for neurons
6. Neurotransmitter Receptors receive signals that trigger an electrical signal, by regulating the activity of ion channels.
8. of Ravier are characterized by short (1um), specialized regions in the axonal membrane that are not insulated by myelin
9. is a component of the peripheral nervous system associated with the voluntary control of the body movements via the use of skeletal muscles
12. a chemical substance that is released at the end of a nerve fiber by the arrival of a nerve impulse and, by diffusing across the synapse or junction
14. a structure containing a number of nerve cell bodies, typically linked by synapses, and often forming a swelling on a nerve fiber
18. is the basic working unit of the brain, a specialized cell designed to transmit information to other nerve cells, muscle, or gland cells
19. Body also called the soma, is the spherical part of the neuron that contains the nucleus
20. Bodies also known as Nissl substance and Nissl material, is a large granular body found in neurons
22. is that small pocket of space between two cells, where they can pass messages to communicate
23. Cells serves as the myelinating cell of the PNS and supports cells of peripheral neurons

1. Membrane is a specialized area of the membrane of the axon terminal that faces the plasma membrane of the neuron or muscle fiber with which the axon terminal establishes a synaptic junction
3. it is where electrical impulses from the neuron travel away to be received by other neurons.
5. Neuron are sensory neurons that carry nerve impulses from sensory stimuli towards the central nervous system and brain
6. Membrane is the membrane that receives a signal (binds neurotransmitter) from the presynaptic cell and responds via depolarisation or hyperpolarisation
7. a sensory receptor that receives stimuli from within the body, especially one that responds to position and movement
10. is an enclosed, cable-like bundle of nerve fibers called axons, in the peripheral nervous system
11. a short branched extension of a nerve cell, along which impulses received from other cells at synapses are transmitted to the cell body
13. Terminal are small swellings that are found at the terminal ends of axons
15. the complex of nerve tissues that controls the activities of the body
16. the nervous system outside the brain and spinal cord
17. Sheath allows electrical impulses to transmit quickly and efficiently along the nerve cells
21. Is a control system that acts largely unconsciously and regulates bodily functions