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Choosing Good Health

Chapters 5 and 6

TermDefinition
immunity the body's ability to resist a particular disease
pathogens bacteria and viruses that cause disease
skin largest organ of the body
mucous membrane lines your mouth, nose, and throat
cilia hairlike projections that line the mucous membrane
hydrochloric acid chemical which destroys most of the harmful bacteria in your stomach
lysozyme enzyme that kills bacteria in your tears and perspiration
cerebrum largest part of the brain that controls thinking, reasoning, and memory
central nervous system consists of the brain and spinal cord
olfactory nerves that help you smell
auditory nerve nerves that help you hear
auditory canal outer ear to the eardrum canal that carries sound waves
nerves wires of your communication system
lymph vessels transportation tubes for lymph
lymph nodes enlarges bunches of lymphatic tissues
lymphocytes white blood cells inside lymph nodes
spleen largest lymphatic organ
sclera outer layer of the eye
iris gives the eye its color
eye socker hollow space in skull that surrounds each eye
pupil center of the iris through which light passes
lens part of the eye that thickens with close objects and thins with far away objects
optometrist person trained to examine eyes and prescribe glasses
cerebellum part of the brain that helps with balance and coordination
spinal cord bundle of nerve fibers that extend from the brain stem to the lower part of the back
left hemisphere part of the brain that communicates with the right side of the body
outer ear part of the ear that catches sound
eardrum thin membrane that separates the outer ear from the middle ear
reflex actions unconscious actions such a jerking your hand from something that is hot
motor nerve fibers sends orders for action from the brain and spinal cord to the muscles
Created by: marlin saylor
 

 



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