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sci explosion ch 14

Science Explosion v4, chapter 14

Alzheimer's disease a disorder of the nervous system; affects a person’s mind, often decreasing
axon the part of the neuron that receives messages from the dendrite and passes the messages to the next neuron
brain command center of the body
dendrite the part of a neuron that receives messages from other neurons
endocrine gland special groups of cells that make chemicals, such as hormones, for the body
epilepsy a seizure disorder caused by the neurons in the brain sending their electrical impulses too quickly and at an irregular rate
hormone a chemical messenger for the endocrine system
hypothalamus a group of special cells near the base of the brain that helps to regulate parts of the body, such as the pituitary gland
impulse an electrical message passed from neuron to neuron
lobes distinct areas of the cerebrum
memory the ability to remember
multiple sclerosis an autoimmune disorder that destroys the myelin coating covering the axon in some neurons; can result in muscle weakness, paralysis, or loss of vision
neuron a nerve cell that carries impulses between various parts of the body
Parkinson's disease a disorder of the nervous system that damages brain cells that control movement
pituitary gland the master gland of the endocrine system; secretes hormones that control other glands
reflex an action that happens before the brain has time to think about the action
spinal cord bundle of nerve fibers that connect the brain to the rest of the body
synapse gap between neurons that messages cross
Created by: heidio