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Homeostasis

Extra Credit 1/20/23  

Name: ___________________________________
Across
A state of balance in the body
On the underside of leaves. Open and close in response to changes in available water (2 words)
System of the body that enables gas exchange; oxygen is inhaled and carbon dioxide is exhaled
Rate increases in response to exercise
Finger-like projections on the inside of the small intestine through which nutrients diffuse into the bloodstream
Chemical signal produced by nerve cells
Control center of the body; function can be compared to the nucleus of a cell
Protein in the cell membrane into which a chemical signal or hormone may fit
System of the body that produces hormones in glands used to help regulate the body. Has a relatively slow response but effects last longer.
System of the body involved in regulation; works quickly but effects are short-lived
Electrical signal that travels across nerve cells from one end to the other.
The body's reaction to a stimulus
Organs of the respiratory system
Down
The brain receives information about an imbalance in the body and takes steps to correct the imbalance. (2 words)
Control of the conditions inside the body, with the help of the nervous and endocrine systems
Controls gas exchange and water balance in plants
System of the body that breaks down food into nutrients the body can use.
The smallest blood vessel; allows for the diffusion of molecules from and to the blood.
Another name for a nerve cell
System of the body that transports materials around the body
Tiny structures that look like bunches of grapes inside the lungs that allow for the diffusion of respiratory gases.
A change that happens inside or outside the body that causes a response by the body
Information the brain receives about conditions in the body
The space between nerve cells
Type of nervous system response that is involuntary