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Neuroanatomy > Development > Flashcards

Development Flashcards

1
Q

What is the function of neutrons?

A

To transfer information rapidly from one part of the body to another

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2
Q

What does the CNS consist of?

A

The brain and spinal cord

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3
Q

What is the CNS protected by?

A

Cranium and vertebral column

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4
Q

What are the bundles of axons called that connect the CNS with all parts of the body?

A

Nerves

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5
Q

Where are the cell bodies of neurones in the CNS?

A

Grey matter

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6
Q

What is a compact aggregation of grey matter called?

A

Nucleus

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7
Q

What is the region of CNS tissue that contain axons but not neuronal cell bodies?

A

White matter

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8
Q

What do neurones develop from?

A

The dorsal ectoderm

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9
Q

What layer becomes the epidermis?

A

Ectoderm

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10
Q

The cells lining the neural tube constitute?

A

The neuroepithelium

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11
Q

What are the first populations of cells produced in the neural tube?

A

Neurones

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12
Q

What cells comprise the other cells of the nervous system that are not neurones?

A

Glia cells

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13
Q

What is the first type of glia cell?

A

Radial Glia

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14
Q

What are the three divisions of the brain at the end of the 4th week of development?

A

Prosencephalon, Mesencephalon and Rhombencephalon

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15
Q

What part of the brain is prosencephalon?

A

Forebrain

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16
Q

What part of the brain is mesencephalon?

A

Midbrian

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17
Q

What part of the brain is rhombencephalon?

A

Hindbrain

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18
Q

What are the five divisions of the brain at the end of the 5th week of development?

A

Telencephalon, Diencephalon, Mesencephalon, Metencephalon and Myelencephalon

19
Q

What does the myelencephalon become?

A

Medulla oblongata

20
Q

What does the metencephalon become?

A

Pons and cerebellum

21
Q

Is the thalamus grey matter or white matter?

A

Grey

22
Q

What part of the brain does the thalamus develop?

A

Diencephalon

23
Q

What are the left and right halves of the telencephalon known as?

A

Cerebral hemispheres

24
Q

The lumen of the neural tube becomes?

A

The ventricular system

25
Q

Where does the lateral ventricle develop?

A

In each cerebral hemisphere

26
Q

Where is the third ventricle?

A

Diencephalon

27
Q

What is the fourth ventricle bounded by?

A

The medulla, pons and cerebellum

28
Q

What are the third and fourth ventricle connected by?

A

Cerebral aqueduct

29
Q

Where does the first cervical flexure occur?

A

Junction of the rhombencephalon

30
Q

Where does the mesencephalic flexure occur?

A

At the level of the midbrain

31
Q

Where is the pontine flexure?

A

In the metencephalon

32
Q

What is the function of the flexures?

A

Ensure that the optical axes of the eyes are at right angles to the axis of the vertebral column

33
Q

What are the three meninges called?

A

Pia mater, arachnoid mater and dura mater

34
Q

What meninges is closer to the nervous tissue?

A

Pia mater

35
Q

What meninges lines the cranial cavity and spinal cord?

A

Dura mater

36
Q

What is the space called between the inner two meningeal layers?

A

Subarachnoid space

37
Q

What fluid is contained within the subarachnoid space?

A

Cerebrospinal fluid

38
Q

What shape is the grey matter in, in the spinal cord?

A

H shape

39
Q

Where are neuronal cell bodies located?

A

Grey matter

40
Q

Where are myelinated axons located?

A

White matter

41
Q

What cells in the hypothalamus synthesise hormones that enter the blood stream?

A

Neurosecretory cells

42
Q

What are gyri?

A

Ridges

43
Q

What are sulci?

A

Grooves

Neuroanatomy (29 decks)

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