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divisions of the nervous system Flashcards

(13 cards)

1
Q

What does Central Nervous System (CNS) consist off and it’s function

A
  • consists of the brain and spinal cord
  • function is to process and coordinate information in the body
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2
Q

What does the peripheral nervous system (PNS) consist of and it’s function

A
  • consists of all neural tissue outside the CNS
  • function is to move messages to and from the brain and spinal cord
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3
Q

What is the afferent division

A

it carriers sensory information from PNS sensory receptors to CNS

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4
Q

What are the three types of receptors in the afferent division in the PNS

A

1) sensory - smell, touch, taste, vision, balance, and hearing
2) Visceral - monitors internal organs
3) Somatic - monitors skeletal muscle, joints, and the skin’s surface

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5
Q

What is the efferent division

A

it carries motor commands from CNS to PNS, muscles, and glands

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6
Q

What is the somatic nervous system

A

sends signals to skeletal muscles and controls skeletal muscle contractions

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7
Q

What is the autonomic system

A

it controls subconscious actions: contractions of smooth muscle, cardiac muscle, and glandular secretions

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8
Q

How is the autonomic system divided?

A

Into sympathetic division and parasympathetic division

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9
Q

define the sympathetic division and parasympathetic division

A

sympathetic division: has a flight or fight response
parasympathetic division: has a relaxing effect (rest and digest response)

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10
Q

Compare CNS and PNS

A

CNS - processes and coordinates information in the body
PNS - move messages to go to and from the brain and spinal cord

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11
Q

Compare Afferent and Efferent

A

Afferent - carries sensory information
Efferent - carries motor commands

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12
Q

Compare SNS and ANS

A

SNS - controls skeletal muscle contractions
ANS - controls subconscious actions

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13
Q

Compare sympathetic and parasympathetic

A

sympathetic - has a stimulating effect
parasympathetic - has a relaxing effect

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