nervous system Flashcards

1
Q

Function of Nervous System

A

Your nervous system is your body’s command center. Originating from your brain, it controls your movements, thoughts and automatic responses to the world around you.

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2
Q

Major Organs of Nervous System

A

the brain, cerebellum and spinal cord

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3
Q

Difference between Neurons and Neuroglia

A

Nervous tissue contains two categories of cells — neurons and neuroglia. Neurons are highly specialized nerve cells that generate and conduct nerve impulses. Neuroglia are supporting cells that provide physical sport, remove debris, and provide electrical insulation.

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4
Q

Dendrite

A

Dendrites are appendages that are designed to receive communications from other cells

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5
Q

Soma

A

the parts of an organism other than the reproductive cells

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6
Q

Schwann cells

A

Schwann cells (SCs) are the main glial cells of the peripheral nervous system which wrap around axons of motor and sensory neurons to form the myelin sheath.

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7
Q

Node of Ranvier

A

Node of Ranvier, periodic gap in the insulating sheath (myelin) on the axon of certain neurons that serves to facilitate the rapid conduction of nerve impulses

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8
Q

Myelin

A

Myelin is an insulating layer, or sheath that forms around nerves, including those in the brain and spinal cord. It is made up of protein and fatty substances

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9
Q

Axon

A

Axon, also called nerve fibre, portion of a nerve cell (neuron) that carries nerve impulses away from the cell body.

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10
Q

Axon Terminal

A

axon terminals are small swellings that are found at the terminal ends of axons.

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