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Physio 2 > CNS > Flashcards

CNS Flashcards

0
Q

____ responsible for half of body’s glucose consumption

A

Brain

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1
Q

Oxygen pass _____ across blood brain barrier

A

Freely

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2
Q

Progressive hypoglycemia leads to _______, ___ and ___

A

Confusion
Unconsciousness
Death

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3
Q

______ move glucose from plasma into the brain interstitial fluid

A

Membrane transporter

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4
Q

Cerebrospinal fluid are made in______

A

Choroid plexus

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5
Q

Simplified function of back , top and front of cerebrum

A

Back: perception
Top: movement
Front: thinking

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6
Q

Neural tube develop from which embryonic tissue?

A

Ectoderm

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7
Q

Brain develop ___ weeks after conception

A

2

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8
Q

Dendrite conduct signal _____ the cell body

Axon conduct signal _____ from cell body

A

Toward

Away

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9
Q

Gray matter consists of _____ cell bodies, dendrites, and axon terminal

A

Unmyelinated

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10
Q

White matter is mostly ____ axons an contains very few _____

A

Myelinated

Cell bodies

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11
Q

Meninges lies between ____ and ____ of the CNS

A

Bones

Tissues

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12
Q

Name 3 meninges layer from bone toward neural tissue

A

Dura mater
Arachnoid mater
Pia mater

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13
Q

Dura mater consist of 2 layers of __________ tissue, fused except for dural sinus

A

Fibrous connective

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14
Q

Dura mater has 2 layers, _____ which is attached to the bone, and _______ which covers the brain

A

Periosteal layer

Meningeal layer

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15
Q

The blood brain barrier refers to the functional barrier between the ____ and the ______

A

Interstitial fluid

Blood

16
Q

Neurons are protected from harmful substance in the blood because brain capillaries are not ____

A

Leaky

17
Q

In brain capillaries, endothelial cells from _____ with one another, junction that prevent solute movement between cell

A

Tight junction

18
Q

Dopamine administered in a pill or injection is ineffective because it is unable to cross the _____, the dopamine precursor ____ can cross it.

A

Blood brain barrier

L-DOPA

19
Q

Benadryl can cross blood brain barrier, its 2nd generation antihistamine called _____ cannot

A

Claritin

20
Q

The blood brain barrier excludes many ___ soluble substances, but smaller ___ soluble molecule can diffuse through

A

Water

Lipid

21
Q

Because of its high demand for _____, the brain receives 15% of the blood pumped by the heart

A

Oxygen

22
Q

Oxygen can pass freely across BBB

T/F

A

True

23
Q

Neurons require a constant supply of ___ and ____ to make ATP for active transport of ions and neurotransmitter

A

Oxygen glucose

24
Q

Brain is responsible for half of body’s ___ consumption

A

Glucose

Physio 2 (1 decks)

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