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NSB > 1. Overview of NS and Development > Flashcards

1. Overview of NS and Development Flashcards

1
Q

What are glia?

A

Non-neuronal cells in the central and peripheral nervous system

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2
Q

What are microglia?

A

Macrophages in the brain and spinal cord

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3
Q

What are the functions of astrocytes?

A

Provide structural support

Form the BBB

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4
Q

What is the function of oligodendrocytes?

A

Form myelin in the CNS

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5
Q

What are the functions of ependymal cells?

A

Line ventricles

Produce CSF

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6
Q

What are the 4 lobes of the cerebrum?

A

Frontal
Parietal
Occipital
Temporal

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7
Q

What structures make up the hindbrain?

A

Cerebellum
Pons
Medulla

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8
Q

What does the brainstem consist of?

A

Midbrain
Pons
Medulla

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9
Q

What are association fibres?

A

Interconnect cortical sites on one cerebral hemisphere

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10
Q

What are comissural fibres?

A

Connect cerebral cortex to subcortical structures

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11
Q

What does ipsilateral mean?

A

Same side

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12
Q

What does contralateral mean?

A

Opposite side

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13
Q

What does it mean to decussate?

A

Switch from 1 side to the other

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14
Q

What are the meningeal layers?

A 
Pia mater
Subarachnoid space
Arachnoid mater
Subdural space
Dura mater
Extradural space
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15
Q

Which layer is the CSF found?

A

Subarachnoid space

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16
Q

What arises from the ectoderm?

A

Epidermis

Nervous system

17
Q

What arises from the mesoderm?

A

Bone
Muscle
Connective tissue

18
Q

What arises from the endoderm?

A

GIT

Respiratory tract

19
Q

What does the oropharyngeal membrane become?

A

Mouth

20
Q

What does the cloacal membrane become?

A

Anus

21
Q

What is found at the cranial end of the primitive streak?

A

Notochord

  • Cartilaginous rod-like structure
  • lies under neural tube
22
Q

What do neural crest cells differentiate into?

A

Neurons and glial cells
Medulla of adrenal gland
Pigment containing epidermal cells
Skeletal and connective tissue of head

23
Q

What day does zipping occur?

A

22

24
Q

What does zipping accomplish?

A

Neuralisation is complete

CNS is now a closed tube

25
Q

What does the telencephalon become?

A

Cerebrum

26
Q

What does the diencephalon become?

A

Thalamus

Hypothalamus

27
Q

What does the rhombencephalon/metancephalon become?

A

Pons
Cerebellum
Medulla

NSB (22 decks)

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