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SP Anatomy Test One > Development of the Nervous System > Flashcards

Development of the Nervous System Flashcards

1
Q

The diencephalon becomes what adult brain structure and what neural canal region?

A

Thalamus, hypothalamus and a few other things

Third ventricle

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2
Q

The mesencephalon give rise to what adult brain structure and what neural canal region?

A

Brain stem: midbrain

Cerebral aqueduct

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3
Q

The metencephalon gives rise to what adult brain structure and what neural canal region?

A

Pons and cerebellum

Fourth ventricle

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4
Q

Prosencephalon is what part of the brain?

A

Forebrain

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5
Q

Mesencephalon is what part of the brain?

A

Midbrain

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6
Q

Rhombencephalon is what part of the brain?

A

Hindbrain

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7
Q

The primary brain vesicle prosencephalon gives rise to what 2 secondary brain vesicles?

A

Telencephalon and diencephalon

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8
Q

The primary brain vesicle mesencephalon gives rise to what secondary brain vesicle?

A

Mesencephalon

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9
Q

The primary brain vesicle rhombencephalon becomes what 2 secondary brain vesicles?

A

Metencephalon and myelencephalon

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10
Q

The telencephalon becomes what adult brain structure and what adult neural canal region?

A

Cerebrum: cerebral hemispheres

Lateral ventricles

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11
Q

The myelencephalon gives rise to what adult brain structure and what neural canal region?

A

Brain stem: medulla oblongata

Fourth ventricle

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12
Q

What connects a lateral ventricle to the third ventricle?

A

Interventricular foramen or foramen of Monroe

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13
Q

What connects the third ventricle to the fourth ventricle?

A

Cerebral aqueduct

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14
Q

The mantle layer will become what part of the spinal cord?

A

Grey matter of the spinal cord

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15
Q

The marginal layer will become what part of the spinal cord?

A

White matter of the spinal cord

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16
Q

The basal plates will form what part of the spinal cord?

A

Ventral (motor) horns; also intermediate horns (presynaptic sympathetic nerve cell bodies) that will only be from T1-L2/3

17
Q

The alar plates will form what part of the spinal cord?

A

Dorsal (sensory) horns

18
Q

Gliablasts that migrate to the marginal layer differentiate into what?

A

Astrocytes

19
Q

Gliablasts that migrate to the mantle layer differentiate into what?

A

Oligodendroglia

20
Q

What do astrocytes do?

A

They are interfacing cells between the blood supply and neurons themselves, aiding in neuron support and metabolism

21
Q

What do oligodendroglia do?

A

They are responsible for producing the myelin sheath found on nerve fibers (axons) within the CNS

22
Q

What do Schwann cells do?

A

They are responsible for myelinating axons within the CNS

23
Q

What do microglia do?

A

These are the phagocytic cells of the CNS

24
Q

What is the innervation of the nerve modality (general) somatic efferent?

A

Somatic striated muscles (skeletal muscles that contract voluntarily except for those derived from the pharyngeal arches)

25
Q

What is the innervation of the nerve modality special visceral (brachial) efferent?

A

Striated (skeletal) muscles derived from the pharyngeal arches, except for CN XI

26
Q

What is the innervation of the nerve modality General visceral efferent?

A

AKA the autonomic nervous system

27
Q

What is the innervation of the nerve modality (general) somatic afferent (general sensory)?

A

General sensations such as touch, temperature & pain

28
Q

What is the innervation of the nerve modality special afferent?

A

Special sense (taste, smell, vision, hearing & balance)

29
Q

What is the innervation of the nerve modality general visceral afferent?

A

Interoceptive information

30
Q

The medulla contains what nerve modalities?

A

All six

31
Q

The pons contain what nerve modalities?

A

All six

32
Q

The midbrain contains what nerve modalities?

A

Only somatic efferent and general visceral efferent

SP Anatomy Test One (2 decks)

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