Topic 1 Flashcards

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1
Q

What is the nervous system

A

A communication system that receives sensory input, processes and integrates it, and then triggers an appropriate response.
MAINTAINS HOMEOSTASIS!

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2
Q

What are the 2 types of nervous cells? What do they do?

A

Neurons—> transmits nervous impulses (secretes neurotransmitters)
Glial cells—> insulates and adds structures (supports neuron’s functions)

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3
Q

What are nerves?

A

A bundle of neurons.

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4
Q

What are the 2 types of nerves?

A

Sensory —> responds to stimuli and carries info the the CNS.
Motor —> produces the effect

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5
Q

Subdivisions of the Nervous System (2)?

A

CNS —> composed of the brain and spinal cord
PNS —> The nerves that extend to and from the spinal cord (and other parts of the body).

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6
Q

What systems can the PNS be further divided into (2)?

A

Somatic Nervous system - voluntary and responds to bold text external stimuli.
Autonomic nervous system - involuntary and responds to internal stimuli.

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7
Q

Draw homeostatic regulation chart

A

Look at answer in textbook!

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8
Q

What 2 subdivision systems can the autonomic system be divided into?

A

Sympathetic Nervous System: responds to stress
Parasympathetic Nervous System: Brings body back to homeostasis (opposite of sympathetic ns). Essentially maintains normal involuntary functions.

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9
Q

Draw chart of subdivisions!

A

Look in textbook!

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