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Human body system
| Term | Definition |
|---|---|
| Tissue | a group of similar cells that perform a specific function |
| Organ | A body structure that is composed of diffrent kind's of tissue that work 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 produced by an endocrine gland (2) A chemical that effects growth and development |
| Stress | The reaction of a person's body to poteintreily threatening challenging, or disrupting events |
| Interaction | The direct effect that one thing has on another |
| Stable | Resistant to sudden changes |
| Digestion | The process by which your body breaks down food into small nutrients moleccules |
| Nutrients | The substance in food that provides the raw materials the body's cells need to carry out all their essential process |
| Absorptrion | The process by which nutreints molecules pass through the digestive system into the blood |
| Carbohydrate | A energy rich organic compound, such as sugar or starch, that is made of the elements carbon, hydrone and oxygen |
| Peristalsis | Waves of smooth muscles contraction that moves food through the esophagus towards the stomach |
| Saliva | Fluid release from glands in the mouth that plays an important role in mechanical and chemical digestion |
| Enzymes | Proteins that speed up chemical reaction in the body |
| Elimination | Acts of removal of materials from the body |
| Circulatory system | An organ system that transports needed materials to the cells and removes waste |
| Contract | To draw together to reduced 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 wears substance for exchange between the blood and body cells |
| Limph | Food that travels through the lymphatic system consisting of water white blood cells and dissolved materials |
| Bronchi | The two passages that direct air into the lungs |
| Alveoil | Tiny thin walled sacs of lung tissue specialized for the movement of gases between air and blood |
| Excretion | The process of moving waste |
| Nephorn | Small filtering structure in the kidneys that removes waste from blood and produces urine |
| Nueron | A cell that carries information through the nervous system |
| Synapse | The junction where one neuron |
| Impulse | The message carried by a nueron |
| Brain | The part of the central nervous that is located in the skull and control most function of the body |
| Spinal cord | Thick column of nervous tissue that links the brain to most nerves that branch out of throw the body |
| Reflex | Automatic response that occurs without conclusion control through the stomach nervous system |
| Negative feedback | The process by which a system is turned off by the condition it produces |
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