Chapter 29

Central Nervous System is the brain and spinal cord in vertebrates.

Peripheral Nervous System are nerves that carry signals between the central Nervous System and the rest of the body.

Somatic Nervous System is a part of the peripheral Nervous System which involves voluntary control.

Autonomic Nervous System is the body's spontaneous response to stimulus. Involuntary muscles located anywhere.

Sympathetic Nervous System causes a reflex when you are startled, sending a message that causes your heart race to increase. "Fight or Flight Response".

Parasympathetic Nervous System slows body functions during periods of rest to conserve energy. For example, digestion.

Sensory Neuron is a neuron that is activated when its receptor endings detect a specific stimulus, such as light or pressure.

Interneuron is a neuron that both receives signals from and sends signals to other neurons. It is located mainly in the brain and spinal cord.

Motor neuron is a neuron that controls muscle or gland.

Neuromuscular junction is a synapse between a neuron and a muscle.

Acetylcholine is a neuro transmitter.

Norepinephrine and epinephrine are known as adrenaline. They are neurotransmitters that prepare the body to respond to stress or excitement.

Synapse is a region where a neurons axon terminals transmit signaling molecules (neurotransmitter) to another.

White matter is central Nervous System tissue consisting mainly of myelinated axons.

Gray matter is central Nervous System tissue that consists of neuron axon terminals, cell bodies, and dendrites, along with neuroglial cells.

Cerebral cortex is the outer layer of the cerebrum composed of folded gray matter and playing an important role in consciousness.

The lobes of the brain are frontal, occipital, temporal and parietal.

Limbic System is the group of structures deep in the brain that function in expression of emotion.

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