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Anatomy And Physiology > Nervous System > Flashcards

Nervous System Flashcards

0
Q

What is the role of glia?

A

Support neurons, capable of dividing

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1
Q

What are the two types of nervous tissue?

A

Neurons and glia

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2
Q

What is the role of Schwann cells?

A

Myelinate neurons

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3
Q

How many pairs of cranial nerves are there?

A

12 pairs

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4
Q

How many pairs of spinal nerves are there?

A

31

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5
Q

What does the diencephalon consist of?

A

Hypothalamus and thalamus

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6
Q

What does the brain stem consist of?

A

Midbrain, pons and medulla

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7
Q

What does the thalamus do?

A

Acts as a relay station for sensory information

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8
Q

What does the hypothalamus do?

A

Thirst and hunger centre, thermoregulation, hormone secretion

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9
Q

What does the cerebellum do?

A

Controls balance, posture, movement coordination and muscle tone

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10
Q

What is the frontal lobe responsible for?

A

Contains motor cortex, controls intellect, planning, mood, social judgement

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11
Q

What is the parietal lobe responsible for?

A

Somatosensory cortex, general sensation and taste

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12
Q

What is the temple lobe responsible for?

A

Auditory cortex

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13
Q

What is the occipital lobe responsible for?

A

Visual cortex

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14
Q

Name the three layers of meninges, outer layer in

A

Dura mater, arachnoid mater, pia mater

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15
Q

What fills the subarachnoid space?

A

Cerebrospinal fluid

16
Q

What is the function of ventricles in the brain?

A

Producing csf

17
Q

What main vessel supplies blood to the brain?

A

Internal carotid artery, vertebral artery

18
Q

Hat do the arteries within the brain form?

A

Circle of Willis

19
Q

Where is Ach found in the ANS?

A

Preganglionic fibers for Sympathetic and parasympathetic

Postglantlionic fibers in parasympathetic only

20
Q

What do nicotinic receptors do?

A

Control ion channels

21
Q

Where are nicotinic receptors found?

A

At ganglionic synapses of parasympathetic and sympathetic divisions

22
Q

Where are muscarinic receptors found?

A

In target tissues of parasympathetic postganglionic neurons

23
Q

What neurotransmitter is present in postganglionic neurones of the sympathetic nervous system?

A

Noradrenaline

24
Q

What receptors are present in target tissues of sympathetic nervous system?

A

Adrenergic receptors

25
Q

What hormone does the adrenal cortex release during stress?

A

Cortisol

26
Q

Describe the anatomy of parasympathetic fibers

A

Long preganglionic fibres and short postganglionic fibers

27
Q

Describe the anatomy of sympathetic fibers

A

Short preganglionic fibers long postganglionic fibers

28
Q

What is a ganglion?

A

Bundle of nerve cells located in the peripheral nervous system

Anatomy And Physiology (15 decks)

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