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Neuropsych > NS Topography > Flashcards

NS Topography Flashcards

1
Q

What are the major organelles found in dendrites?

A

Cytoskeleton
Mitochondria

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2
Q

What are the major organelles found in axons?

A

Cytoskeleton
Mitochondria
Transport vesicles

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3
Q

What are the major organelles found in axon terminals?

A

Synaptic vesicles
Mitochondria

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4
Q

What are the major organelles found in soma?

A

Nucleus
Golgi apparatus
Nissl substance
Cytoskeleton
Mitochondria

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5
Q

What defines a preganglionic autonomic neuron?

A

Cell bodies in CNS with axons that travel through PNS to reach autonomic ganglia

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6
Q

What defines a postganglionic autonomic neuron?

A

Cell bodies in PNS in autonomic ganglion with axons that travel through PNS to reach viscera

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7
Q

What defines a local interneuron?

A

Entirely contained in CNS with short axons that project to nearby areas of CNS

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8
Q

What defines a projection neuron?

A

Entirely contained in the CNS with long axons that project to distance parts of the CNS

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9
Q

What are neuroglia derived from in development?

A

Microglia from mesoderm
Rest from ectoderm

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10
Q

What are the general functions of astrocytes?

A

Maintain blood-brain barrier
Regulate ion, nutrient, and dissolved gas concentrations
Form scar tissue after injury

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11
Q

What is the function of oligodendrocytes?

A

Form myelin around CNS axons

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12
Q

What is the function of microglia?

A

Remove cellular debris and pathogens in CNS by phagocytosis

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13
Q

What are the functions of endymal cells?

A

Line ventricles of the brain and central canal of spinal cord
Assist in formation of blood-CSF barrier
Assist in production, circulation, and monitoring of CSF

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14
Q

What is the function of satellite cells?

A

Surround nerve cells bodies in peripheral ganglia

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15
Q

What are the functions of Schwann cells?

A

Surround all axons in PNS
Myelination of axons in PNS
Participate in repair process of PNS neurons after injury

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16
Q

What generally constitutes gray matter?

A

Cell bodies and dendrites

17
Q

What generally constitutes white matter?

A

Axons/nerve fibers that are usually myelinated

18
Q

What is a tract in neuroanatomy?

A

Neural pathway/neural face
Connects one part of NS to another part via axons and long fibers of neurons

19
Q

What is a fasciculus in neuroanatomy?

A

Bundle of nerve fibers that follow the same course, but do not necessarily have the same functional divisions

20
Q

What is a lemniscus in neuroanatomy?

A

Ribbon or band of nerve fibers

21
Q

What are the 3 meninges?

A

Dura mater
Arachnoid mater
Pia mater

22
Q

What are the 3 primary functions of the cerebellum?

A

Maintenance of posture
Maintenance of muscle tone
Coordination of voluntary motor activity

23
Q

What is the extension of the spinal cord?

A

From C1 to the lower border of L1

Neuropsych (20 decks)

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