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Neurophysiology > Neurophysiology BRS > Flashcards

Neurophysiology BRS Flashcards

1
Q

Origin of Preganglionic Nerve
Sympathetic
Parasympathetic

A

Sympathetic: Nuclei of Spinal Segment (Thoracolumbar: T12-L3)
Parasympathetic: Nuclei of Cranial Nerves, Spinal Cord Segment (Craniosacral: S2-S4)

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2
Q

Length of Preganglionic Nerve Axon

Para vs Sympa

A

Para: Long
Sym: Short

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3
Q

Neurotransmitter in ganglion

Para vs Sympa

A

Ach both

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4
Q

Receptor in ganglion

Para vs Sym

A

Para Nicotinic

Sym Nicotinic

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5
Q

Length of postganglionic nerve axon

Para vs Sym

A

Para short

Sym long

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6
Q

Effector organs

Para vs Sym vs Somatic

A

Para and Sym: Smooth and cardiac muscle, glands

Somatic: Skeletal

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7
Q

Neurotransmitter in Effector organs

Para vs Sym vs Soma

A

Para: Ach
Sym: Norepinephrine (exc gland: Ach)
Skeletal: Ach

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8
Q

Receptor types in effector organs

Para vs Sym vs Som

A

Para: Muscarinic
Sym: A1, A2, B1, B2
Soma: Nicotinic

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9
Q

Specialized ganglion of the SNS

A

Adrenal Medulla

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10
Q

Chromaffin cells secrete

A

80% Norepinephrine

20% Epinephrine

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11
Q

A tumor of the renal medulla that secretes excessive amounts of Catecholamines

A

Pheochromocytoma

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12
Q

Neurotransmitters of the ANS

A

Adrenergic neurons: Norepinephrine
Cholinergic Neurons: Acetylcholine
Noncholinergic, nonadrenergic: Substance P, VIP, NO

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13
Q

Receptor Types in the ANS

A

Adrenergic receptors
A1, A2, B1, B2

Cholinergic receptors
Nicotinic, Muscarinic

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14
Q

G Proteins of the adrenergic receptors

A

Adrenergic:

A1: Gq
A2: Gi
B1: Gs
B2: Gq

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15
Q

G Proteins of the Cholinergic Receptors

A

Nicotinic: -
Muscarinic:

M2: Gi
M3: Gq

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16
Q

Nictonic receptors location

A

Nn- Adrenal Medulla, Autonomic Ganglia

Nm- Neuromuscular Junction

17
Q

Autonomic Centers

A

Medulla: Respiratory, Vasomotor, swallowing, cough, vomiting
Pons: Pneumotaxic Center
Midbrain: Micturition
Hypothalamus: Temp Reg, Thirst and Food intake

18
Q

Cells of the Nervous System

A

Neurons

Glial cells- support cells for neurons

19
Q

Structure of the Neuron and functions

A

Cell Body- protein synthesis
Dendrites- receive information
Axon- send information

20
Q

Glial cells and functions

A

Astrocytes- supply metabolic fuels, secrete trophic factors, synthesis of neurotransmitters

Oligodendrocytes- synthesis of melanin in the CNS, Schwann Cells in the PNS

Microglial cells- scavengers for cellular debris

Neurophysiology (2 decks)

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