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Human Anatomy & Physiology > Chapter 12 Nervous Tissue > Flashcards

Chapter 12 Nervous Tissue Flashcards

1
Q

what is the nervous system responsible for?

A

it is responsible for our behaviours, memories and movements. It also helps to maintain homeostasis which is maintaining the body’s internal environment.

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2
Q

what are the 3 basic functions of the nervous system and elaborate?

A
  1. sensory function is sensory input from receptors detect changes both inside and out the body (sensory input).
  2. integrative function is sensory input is analyze and coordinate with an appropriate motor response.
  3. motor function is motor output to an effector organ such as a muscle or gland.
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3
Q

what does afferent and efferent mean in the nervous system?

A

afferent refers to the sensory function which brings info into the central nervous system whereas efferent refers to motor function which means out the central nervous system.

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4
Q

what are the 2 main subdivisions of the nervous system and what do they include?

A
  1. central nervous system (CNS) which consists or the brain and spinal cord
  2. peripheral nervous system (PNS) which consists of the cranial and spinal nerves, ganglia and sensory receptors
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5
Q

what are the further subdivisions of the PNS?

A
  1. Sensory divison
  2. Motor divison
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6
Q

what is the sensory division of the PNS?

A
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7
Q

what is the motor division of the PNS? what are the further subdivisions of the motor division?

A
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8
Q

what is the somatic nervous system of the motor division of the PNS?

A
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9
Q

what is the autonomic nervous system of the motor division of the PNS?

A
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10
Q

what are the further subdivisions of the autonomic nervous system?

A
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11
Q

what are the two basic cell types for the nervous tissue?

A
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12
Q

what are neurons?

A
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13
Q

what are neuroglia?

A
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14
Q

what are the 6 types of neuroglia cells and where are they found?

A

astrocytes, oligodendrocytes, microglia and ependymal cells are found in the CNS

schwann and satellite cells found in the PNS

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15
Q

what are astrocytes?

A
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16
Q

what are oligodendrocytes?

A
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17
Q

what are microglial cell?

A
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18
Q

what are ependymal cells?

A
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19
Q

what are schwann cells?

A
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20
Q

what are satellite cells?

A
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21
Q

what are the parts of a neuron?

A
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22
Q

what is a multipolar neuron?

A
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23
Q

what is a bipolar neuron?

A
24
Q

what is a unipolar neuron?

A
25
Q

axons can be….

A
26
Q

what does the term grey matter consist of in the NS?

A
27
Q

what does the term white matter consist of in the NS?

A
28
Q

what does the term nucleus mean in the NS?

A
29
Q

what does the term ganglion mean in the NS?

A
30
Q

what does the term tract mean in the NS?

A
31
Q

what does the term nerve mean in the NS?

A
32
Q

what are ion channels in neurophysiology?

A
33
Q

what are the 4 kinds of channels in neurophysiology?

A
34
Q

what are leakage channels?

A
35
Q

what are ligand-gated channels?

A
36
Q

what are mechanically-gated channels?

A
37
Q

what are voltage-gated channels?

A
38
Q

what is the resting membrane potential?

A
39
Q

what is an action potential?

A
40
Q

explain the generation of an action potential.

A
41
Q

what are the phases of an action potential?

A
42
Q

explain the conduction of an action potential.

A
43
Q

what are the 2 types of propagation in a conduction of an action potential?

A
44
Q

what is continuous conduction?

A
45
Q

what is saltatory conduction?

A
46
Q

what is a synapse?

A
47
Q

what is axodendritic?

A
48
Q

what is axosomatic?

A
49
Q

what is axoaxonic?

A
50
Q

what does presynaptic, postsynaptic and synaptic cleft refer to?

A
51
Q

what are the events of a synapse?n

A
52
Q

removal of a neurotransmitter from a synapse can occur by…? why is thus important?

A
53
Q

what is the organization of the neutrons like?

A
54
Q

what is divergence when referring to neurons?

A
55
Q

what is convergence when referring to neurons?

A

Human Anatomy & Physiology (7 decks)

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