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Yr 2 Sem 1 Head And Neck > 4.1 Basics of the CNS > Flashcards

4.1 Basics of the CNS Flashcards

1
Q

What does ectoderm become?

A

Nervous system

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2
Q

What does mesoderm become?

A

Muscles

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3
Q

What does endoderm become?

A

Gut tube

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4
Q

What helps prevent neural tube defects?

A

Folic acid

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5
Q

What does the neural tube go on to make and what is the relevance of this?

A

Brain and spinal cord

Hollow

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6
Q

What is emergence?

A

Complex behaviour emerges from interactions of individual simple units

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7
Q

What are the basic components of the CNS?

A

Cerebral hemispheres
Brainstem and cerebellum
Spinal cord

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8
Q

What are the basic components of the PNS?

A

Dorsal and ventral roots
Spinal nerves
Peripheral nerves

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9
Q

What anatomical terminology is used for the superior part of the brain and why?

A

Dorsal

Brain flexes at level of midbrain

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10
Q

What is another word for midbrain?

A

Mesencephalon

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11
Q

What does the midbrain do?

A

Eye movements

Reflex responses to sound and vision

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12
Q

What does the pons do?

A

Feeding

Sleep

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13
Q

What does the medulla do?

A

Cardiovascular and respiratory centres

Contains major motor pathway (medullary pyramids)

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14
Q

Define sulci

A

Groove or furrow in brain separating adjacent sulci

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15
Q

Define gyrus

A

A ridge or fold in the brain

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16
Q

Define fissure

A

A large crack or split between adjacent large areas in the brain

17
Q

Function of frontal lobe

A

Higher cognition
Motor function
Speech

18
Q

Function of parietal lobe

A

Sensation

Spatial awareness

19
Q

Function of temporal lobe

A

Memory
Smell
Hearing

20
Q

Function of occipital lobe

A

Vision

21
Q

Function of cerebellum

A

Coordination

Motor learning

22
Q

What is the optic chiasm?

A

Site where fibres in the visual system cross over

23
Q

What is the uncut?

A

Part of the temporal lobe that can herniate, compressing part of midbrain

24
Q

What are the medullary pyramids?

A

Location of descending motor fibres

25
Q

What is the corpus callosum?

A

White matter fibres connection the two cerebral hemispheres

26
Q

What is the thalamus?

A

Sensory relay station projecting to the sensory cortex

27
Q

What is the hypothalamus important for?

A

Regulating homeostasis

28
Q

What are the major roles of the cerebellum?

A

Coordination of motor control (especially fine motor control)
Posture
Balance

Yr 2 Sem 1 Head And Neck (8 decks)

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