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Pharmacology > Unit 3 - Central & Peripheral Nervous System > Flashcards

Unit 3 - Central & Peripheral Nervous System Flashcards

1
Q

Central Nervous System

A

Brain and spinal cord

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2
Q

Peripheral Nervous System

A

Sensory (afferent)
Somatic (efferent)
Autonomic nervous system

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3
Q

Autonomic nervous system

A

Sympathetic

Parasympathetic

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4
Q

Peripherl Nervous system

A

Nerves outside of the brain and spinal cord

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5
Q

Somatic (Efferent)

A

Away from the brain
Voluntary
Skeletal muscles

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6
Q

Autonomic

A

Smooth
Cardiac muscles
Glands

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7
Q

Parasympathetic

A

Homeostasis

Daily maintenance

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8
Q

Sympathetic

A

Fight or Flight
Alert system
No essential to life

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9
Q

Sensory (Afferent)

A

input to brain (light, heat, pressure

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10
Q

Synapse within spinal cord

A

Sensory & Somatic

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11
Q

Autonomic Nervous system (ANS)

A

Involuntary
Unconscious
No control

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12
Q

Control of ANS lies where?

A

Midbrain/medullary center of brain

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13
Q

Origin of Sympathetic Branch

A

12 thoracic and 1st 3 lumbar of spinal cord

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14
Q

Parts of Sympathetic branch

A

Short preganglionic fiber
Ganglionic synapse
Long ganglionic fiber
Neuroeffector synapse

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15
Q

Release of epinephrine into bloodstream

A

Sympathetic fibers innervate the adreal medulla

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16
Q

Circulation epinephrine

A

Stimulates all receptors responding to norepinephrine even if no sympathetic nerves are present

17
Q

Sympathetic Stimulation

A

Electrical and chemical

Start electrical as nerve signal is carried along nerve fiber. At gaps (synapse), electrical transmission replaced by chemical transmission.

Synapses are named for their location.

18
Q

Sympathetic Neurotransmitter

A 
Ganglionic Synapse (Acetylcholine)
Neuroeffector Synapse (Norepinephrine)
19
Q

Sympathetic Neurotransmitter Exceptions

A
  • Sympathetic sweat glands release acetylcholine instead of norepinephine
  • Pre-ganglionic sympathetic nerve fibers directly innervate the adrenal medulla, where the neurotransmitter is acetylcholine
20
Q

Adrenergic Receptors

A 
A1
A2
B1
B2
B3
21
Q

A1

A

Found in lungs and kidneys
Bronchoconstriction & Vasoconstriction
Norepinephrine

*Constrict

22
Q

B2

A

Found in lungs and vessels
Bronchodilation & Vasodilation
Epinephrine

*Dilate

23
Q

B1

A

Found only in heart
increase HR, force of constriction, Automiaticity (more response)
Chronotropic effect/ Ionotropic

*Excite

24
Q

Beta Blockers

A

Competitive antagonist

Proprandol vs Epinephine

25
Q

Proprandol

A

causes decrease HR & BP

Indirect constictor

Pharmacology (14 decks)

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