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human body systems

TermDefinition
Tissue a group of similar cells performing a specific function
organ a body structure that is composed of different kinds of tissues that work together
organ systems a group of organs that work together to perform a major function
Gland an organ that releases chemicals through bloodstream or ducts
Hormone (1) the chemical produced by an endocrine gland (2) a chemical that effects growth
Stress The reaction to a person to threatening, challenging or disturbing events
Interactions the direct effect on one thing to another
Stable resistant to sudden change
Digestion the process by which your body breaks down food
Nutrients the substances in food that provide protein
Absorption nutrient molecules pass through the wall of the digestive system to the blood
carbohydrates the energy-rich organic compound, such as sugar or starch
peristalisis waves of smooth muscle contraction that move food
saliva fluid released from glands in mouth
Enzymes proteins that speed up chemical reactions in the body
Elimination act of removal of materials from the body
circulatory system an organ system that transports needed materials and removes waste
contact to draw together
Artery the blood vessel that carries away
Vein A blood vessel that carries blood back to the heart
Capillary tiny blood cell where substances are exchanged
Lymph fluid that travels through the lymphimatic system consisting of water, white blood cells, and dissolved materials
Brohnchi two passeges that direct air to the lung
Alveoli tiny thin walled sacs of lung tissue
excretion the process of moving wastes
Nephron small flittering structure
Nureon a cell that carries information through the nervous system
Synapse the junction where the nueron can transfer impulse
Impulse the message carried by nueron
Brain the part of the central nervous system that controls your whole body
Spinal cord thick collum that links your brain to nerves throughout the body
reflex autimatic response
Negitive feedback a system turned off by the condition it prduces
Created by: user-1718529
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