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human body system

TermDefinition
tissue a group of similar cells that perform a specifict function
organ a body structure that is composed of different kinds of tissue that works together
organ system a group of organs that work together to perform a major function
gland an organ that produces and releases chemicals either through ducts or into the bloodstream
hormone (1)the chemical prouduce by an endociren gland (2)a chemical that effects growth and development
streess the reaction of a person's body to potentially theatening challenging,or disturbing events
interactions the direct effect that one thing has on another
stable resiant to sudden change
digestion the process by which your body breakes down food into small nutirients molecules
nutrients the substance in food that provide that raw materials the body's cells need to carry out all their essential proucesses
absorpption the proucess by wich the nuterient molecules pass through the wall of the digestive system into the blood
carbohydrates a energy-rich organic compound,such as sugar or strach,that made of the elements carbon,hydrogen and oxygen
peristalsis waves of smooth musscle contractions that moves food through the esophagus toward the stomach
saliva fluid released from glands in mouth that play an important role in machanical and chemical digistion
enzymes proteins that spees up chemical reactions in the body
elimination act of removal of materials from the body
circulatory system an organ system that transport needed materials to cell and removes waste
contract to draw together,to reduce in size
artery a blood vessel that carries blood away from the heart
vein a blood vessel that carries blood back to the heart
capillary a tiny blood vessel where substance are exchanged between the blood and body cells
lymph fludi that travels through the lymphatic system consisting of water,white blood cell,and dissolved materials
bronchi the tow passages that direct air into the lungs
alveoli tiny thin-walled sacs of lungs tissue specialized for the movement of gases between air and blood
excrection the process of moving wastes
nephoron small filtering structure in the kidneys that removes waste from blood and proudecses unirne
neuron a cell that carries informstion through the nerous system
synapes the junction where one neuron can transfer an impluse to another neuron
implus the message carried by a neuron
brain the part of the central nervous system that is located in the skull and controls most function of the body
spinal cord thick colum of nervous tissue that links the brain to most of the nerves that branch out through the body
reflex automatic response that occurs whithout conscious control through the somatic nervous system
negative feedback the process by whivh a system is turned off by the condition it produces
Created by: user-1718193
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