Nervous System
Science

A sudden reversal in the charge of a neuron’s membrane, also called a nerve impulse
Action potential
A sudden reversal in the charge of a neurons membrane, also called a nerve impulse. Action potential. An action potential is a quick electrical signal that travels along a neuron, allowing it to communicate with other cells.

The part of the neuron that contains the nucleus, most of the cytoplasm, and organelles
Cell body
The part of the neuron that contains the nucleus, most of the cytoplasm, and organelles is called the cell body. The cell body is like the main control center of a neuron, where important processes like energy production and information processing happen.

The highly-folded, gray outer layer of the brain, it controls memory, learning and actions
Cerebral cortex
The highly-folded, gray outer layer of the brain, it controls memory, learning, and actions. The cerebral cortex is the part of the brain responsible for processing information and making decisions.

Occurs when larger doses of a drug are needed by the body to produce the same effect
Drug tolerance
Occurs when larger doses of a drug are needed by the body to produce the same effect. Drug tolerance. Drug tolerance is when your body gets used to a drug, so you need more of it to feel the same effect.

The part of the midbrain that controls the activities of the nervous & endocrine systems
Hypothalamus
The part of the midbrain that controls the activities of the nervous amp endocrine systems. Hypothalamus. The hypothalamus is a small brain region that helps keep the body in balance by regulating hormones and maintaining body temperature.

The part of the brainstem that controls involuntary activities such as breathing & heart rate
Medulla oblongata
The part of the brainstem that controls involuntary activities such as breathing heart rate medulla oblongata. The medulla oblongata is the brain area responsible for controlling basic body functions like breathing and heart rate.

The part of the nervous system that controls body functions when the body is at rest
Parasympathetic nervous system
The part of the nervous system that controls body functions when the body is at rest parasympathetic nervous system. The parasympathetic nervous system helps your body relax and conserve energy by slowing the heart rate and increasing digestion.

Peripheral nervous system explained in an easy to understand way.
Peripheral nervous system
The nerves that carry signals between the entire body and the central nervous system. Peripheral nervous system. It includes all the nerves outside the brain and spinal cord that connect the body to the central nervous system.

The part of the peripheral nervous system that controls voluntary actions, it connects the skin, skeleton, and muscles
Somatic nervous system
The part of the peripheral nervous system that controls voluntary actions, it connects the skin, skeleton, and muscles. Somatic nervous system. The somatic nervous system allows you to move your body by controlling muscles.

The part of the autonomic nervous system that controls the organs, and prepares the body for times of stress
Sympathetic nervous system
The part of the autonomic nervous system that controls the organs, and prepares the body for times of stress, is the sympathetic nervous system. It helps the body respond to stress by increasing heart rate and energy in a "fight or flight" situation.