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The study of body structure, which includes size, shape, composition and perhaps even coloration.
Chemical compounds that do not contain carbon-hydrogen covalent bonds; includes water, salt and oxygen.
Chemical compounds that contain carbon-hydrogen; includes carbohydrates, lipids, proteins and nucleic acids
Any of the tissues that connects, supports, transports, or stores materials. Consists of cells and matrix.
The tissue specialized to generate and transmit electrochemical impulses that have many functions in the maintenance of homeostasis.
All of the physical changes and chemical reactions that take place within the body; includes anabolism and catabolism.
The state at which the internal environment of the body remains relatively stable by responding appropriately to changes.
Positive Feedback Mechanism
A control system that requires an external event to stop or reverse the stimulus; may become a self-perpetuating cycle that causes harm.
Negative Feedback Mechanism
A control system in which a stimulus initiates a response that reverses or reduces the stimulus. Thereby stopping the response until the stimulus occurs again and there is a need for the response.
The connective tissue membranes that line the dorsal cavity and cover the brain and the spinal cord.
The visceral peritoneum that covers the abdominal organs; a large fold attaches the small intestine to the posterior abdominal wall.
A division into four parts, used especially to divide the abdomen into four areas to facilitate description of locations.
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