Nervous System

The Nervous System Vocabulary
1.Neuron- Cell that carries messages through with(predicate)out the tense system.
2.Dendrite- university extension of the carrel body of a nerve cell that carries impulses from the environment or from other neurons toward the cell body.
3.Axon- Long fiber that carries impulses away from the cell body of a neuron.
4.Myelin Sheath- Insulating membrane surrounding the axon in some neurons.
5.Synapse- Location at which a neuron can transfer an impulse to another cell.
6.Neutrotransmitter- Chemical apply by a neuron to transmit an impulse across a synapse to another cell.
7.Meninges- Three layers of connective tissue in which the brain and spinal cord are wrapped.
8.Cerebrospinal still- Fluid in the space between the meninges that acts as a shock absorber that protects the central nervous system.
9.Cerebrum- Area of the brain trusty for all of the voluntary activities of the body.
10.Cerebellum- Region of the brain that coordinates body movements.
11. header Stem- Structure that connects the brain and spinal cord;includes the medulla, oblangata and the pons.
12.Thalamus- Brain coordinate that recieves messages from the sense organs and relays the information to the proper region of the cerebrum to make headway processing.
13.



Hypothalamus- Brain structure that acts as a control center for recognition and analysis of hunger, thirst, fatigue, anger, and body temperature.
14.Sensory Receptor- Neuron that reacts to a specific stimulus such as light or sound, by sending impulses to other neurons and eventually to the central nervous system.
15.Pupil- Small opening in the middle of the iris through which light enters the middle.
16.Lens- transparant object behind the iris that changes shape to athletic supporter adjust the oculuss focus to see near or distant objects.
17.Retina- innermost layer of the eye; contains photoreceptors.
18.Rod- Photoreceptor in eye that is sensitive to light but not to colors.
19.Cone- In the retina of they eye; photoreceptor in the...If you want to get a full essay, fix it on our website: Ordercustompaper.com



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