what are the parts of a nerve cell?
axons, cell body, dendrite
give a synonym for nerve cell
what do nerve cells need?
what connects your body to the central nervous system
nervs or pns
what part of the nerve conveys electrical messages?
describe the direction of movement of an impulse through a neuron
dendrite --> cell body --> axon
what is the space between neurons called?
what are sensory neurons
neurons that let you know whats going on around you
what are the specialized nerve endings that detect changes inside and outside the body called?
where are sensory neurons located?
give examples of sense organs
eyes tongue etc
what is a stimulous
action that cause a reaction
what is stimuli?
plural of stimulus
what is a reflex?
what is the central nervous system
brain and spinal cord
what is the peripheral nervous system
around brain and spinal cord
what are the 2 divisions of the peripheral nervous system?
somatic and autonomic
what does the autonomic nervous system control?
what does the somatic nervous system control?
what are the 2 divisions of the autonomic nervous system?
sympathetic para sympathetic
what does the sympathetic nervous system control?
what does the para sympthatic nervous system control?
name the parts of a brain
cerebrum, cerrebellum, medulla
what does the cerebrum control?
thinking, memory, senses
what does the cerebellum control?
what does the medulla control?
heart beat, breathing, digestion
what is the spinal cord?
axons bundled with blood vessels + connective tissue surrounded by vertebrae
what is homeo stasis?
constant internal conditions
what 2 divisions of the autonomic nervous system help to maintain homeostasis?