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Clinical Foundations > Physiology > Flashcards

Physiology Flashcards

1
Q

Body Fluid Compartments

A

Intracellular fluid

Extra cellular fluid

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2
Q

Types of ECF

A

Interstitial fluid

Blood plasma

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3
Q

ICF makes up how much of total body water volume?

A

2/3

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4
Q

ECF makes up how much total body water volume?

A

1/3

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5
Q

Plasma is what percentage of ECF?

A

25%

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6
Q

Interstitial fluid is what percentage of ECF?

A

75%

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7
Q

Total Body Water is how much of the total body weight?

A

60%

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8
Q

Sodium is high in which compartment?

A

ECF

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9
Q

Potassium is high in which compartment?

A

ICF

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10
Q

What ions are high in blood plasma?

A

Sodium, chloride, and proteins

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11
Q

What ions are high in ICF?

A

Potassium and proteins

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12
Q

Osmotic Pressures

A

Material moving into and out of the ICF must cross the cell membrane

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13
Q

What will a cell do in an isotonic solution?

A

Stay the same

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14
Q

What will a cell do in a hypotonic solution?

A

Swell/burst

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15
Q

What will a cell do in a hypertonic solution?

A

Shrink

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16
Q

Rate of simple diffusion relays on what factors?

A 
Lipid solubility
Molecular size
Concentration gradient
Membrane surface area
Composition of lipid layer
17
Q

Membrane permeability is proportional the what factor?

A

Lipid solubility

18
Q

Membrane permeability is inversely related to what factor?

A

Molecular size

19
Q

Fick’s Law of Diffusion

A

Rate of diffusion is proportional to the SA x concentration gradient x membrane permeability

20
Q

Does facilitated diffusion use energy?

A

No

21
Q

Facilitated diffusion uses what?

A

Channels and Facilitated transporters

22
Q

Primary active transport does what for Secondary active transport?

A

Creates concentration gradient

23
Q

Does secondary active transport directly use energy?

A

No, indirectly from concentration gradient made by primary active transport

24
Q

Types of secondary active transporters?

A

Symporter and antiporter

25
Q

What ion has to enter a muscle cell to cause a contraction?

A

Ca++

26
Q

What is the ER called in a myocyte?

A

Sarcoplasmic reticulum

27
Q

The sarcoplasmic reticulum stores what ion?

A

Ca++

28
Q

What primary active transport pump has to be present to cause muscle relaxation?

A

Na+/K+ ATPase

29
Q

What transporter is inhibited by digoxin?

A

Na+/K+ ATPase

30
Q

Does simple diffusion have a transport maximum?

A

No

Clinical Foundations (17 decks)

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