Chapter 2 Flashcards

0
Q

When secreted, neuromodulators affect

A

Cluster of neurons

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1
Q

The ____ lobe is the somatosensory area of the brain

A

Parietal

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2
Q

Nerotransmitters are detected by the receiving neuron at specific positions on the cell membrane called ______.

A

Receptor sites

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3
Q

Neurons contain more ____ charged ions compared to extracellular fluids.

A

Negatively

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4
Q

The process specialized to conduct a nerve impulse called the ____.

A

Axon

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5
Q

Supporting cells in the brain are called ____ cells.

A

Glial

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6
Q

A decrement in the effectiveness of the drug as a result of repeated administration is called ____.

A

Tolerance

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7
Q

The ____ lobe is the motor area of the brain

A

Frontal

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8
Q

The _____ is the bodies master gland, and it’s controlled by the _____.

A

Pituitary gland/hypothalamus

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9
Q

Chemical messengers are stored in the axon terminal in small spheres called ____.

A

Synaptic vessels

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10
Q

Brain cells that conduct nerve impulses are called ____.

A

Neurons

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11
Q

The _____ extends outward from the cell body to increase the surface area available for receiving signals from adjacent neurons

A

Dendrite

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12
Q

The ____ branch of the ANS restores the body’s energy reservoirs.

A

Parasympathetic

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13
Q

When sodium ion channels open the neurons becomes _____ polarized.

A

Less

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14
Q

An increase in the potency of a drug as a result of repeated administration is called ____.

A

Sensitization

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15
Q

The ____ nervous system is encased in bone, while the _____ nervous system is not.

A

Central/peripheral

16
Q

Neurotransmitter molecules disturb the resting potential of the receiving neuron by opening ____.

A

Ion channels

17
Q

The gap between axons and dendrites is called the ____.

A

Synaptic cleft

18
Q

In addition to the presence of absence of myelin, the speed of nerve conduction is governed by the ______ of the axon.

A

Diameter

19
Q

The triggers nine for the initiation of a nerve impulse is that the ____.

A

Axon hillock

20
Q

The brain comprises 2% of our body weight, but consumes ____ of our calories

A

20%

21
Q

Response is regulated by ____ are sluggish relative to his response is regulated by ____.

A

Hormone/neurotransmitters

22
Q

_____ is a decreed meant in the resting potential

A

Depolarization

23
Q

Language behavior is lateralized to the ____ hemisphere in most people.

A

Left

24
Q

The fact that all or most neurons fire randomly while at rest is called the?

A

Spontaneous activity

25
Q

The _____ lobe is the visual area of the brain

A

Occipital

26
Q

The resting potential, the polarity inside of a neuron when it is not being stimulated father sales is about?

A

-70mV

27
Q

The _____ is the auditory area of the brain.

A

Temporal

28
Q

The metabolic machinery needed to power the cell is located in the ____.

A

Soma

29
Q

Hyperpolarization is produced by the _____ synapses.

A

Inhibitory

30
Q

The idea that action potentials are always the same quantal magnitude is known as the _____ law.

A

All or none

31
Q

Depolarization is produced by ____ synapses.

A

Excitatory