The body’s ability to keep internal conditions stable even when the outside environment changes

A process that reverses a change to bring the body back to balance (like cooling down when you’re hot).

The outer layer of a cell that controls what enters and leaves

Movement of particles from an area of high concentration to low concentration.

The movement of water across a membrane

The “powerhouse” of the cell that makes energy (ATP).

A nerve cell that sends and receives electrical messages.

The electrical signal that travels along a neuron.

The small gap between two neurons where neurotransmitters send signals

ATP (Adenosine Triphosphate)

The main energy source used by cells for all functions.

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Elyssa Brumfield

Human Physiology/ Lab

Term	Definition
Homeostasis	The body’s ability to keep internal conditions stable even when the outside environment changes
Negative Feedback	A process that reverses a change to bring the body back to balance (like cooling down when you’re hot).
Cell Membrane	The outer layer of a cell that controls what enters and leaves
Diffusion	Movement of particles from an area of high concentration to low concentration.
Osmosis	The movement of water across a membrane
Mitochondria	The “powerhouse” of the cell that makes energy (ATP).
Neuron	A nerve cell that sends and receives electrical messages.
Action Potential	The electrical signal that travels along a neuron.
Synapse	The small gap between two neurons where neurotransmitters send signals
ATP (Adenosine Triphosphate)	The main energy source used by cells for all functions.

Created by: ebrumfield15

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