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603 Physiology > Cardio 1 > Flashcards

Cardio 1 Flashcards

1
Q

What are the three components of the cardiovascular system? (big picture)

A
  1. Fluid
  2. Pump
  3. Circuit
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2
Q

Are there multiple circuits in the cardiovascular system or is there just one?

A

Multiple

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3
Q

closed and circular

A

cardiovascular system

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4
Q

open and bidirectional

A

respiratory system

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5
Q

What are the three components of the respiratory system? (big picture)

A
  1. Gas
  2. Bellows
  3. Tube
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6
Q

What five other body systems does the cardiovascular system interact with?

A
  1. Respiratory
  2. Nervous
  3. Endocrine
  4. Urinary
  5. Hemolymphatic and Immune
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7
Q

4 Important Functions of the Circulatory System

A
  1. Maintain homeostasis
  2. Deliver nutrients
  3. Remove waste products
  4. Be energeticaly efficient
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8
Q

Which has to come first, mechanical or electrical?

A

electrical

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9
Q

Is flow continuous in the circulatory system?? Why or why not?

A

No - need time for diffusion

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10
Q

What are the two reservoirs for blood?

A

Spleen and venous circulation

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11
Q

Which side of the circulation is the spleen on - arterial or venous?

A

Arterial

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12
Q

Diffusion

A

method for substances to move across capillary walls into the interstitial space and then into the cell

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13
Q

Is diffusion fast or slow?

A

slow [over short distances]

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14
Q

Is bulk flow fast or slow?

A

fast [over long distances]

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15
Q

What is the maximum distance a metabolically active cell can be from bulk flow?

A

100um (microns)

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16
Q

What types of metbolically active cells would be at the max distance?

A

Example, tendons - don’t have a lot of energy requirements

17
Q

Relationship b/n Hematocrit and Viscosity

A

Increased hematocrit = increased viscosity

18
Q

What is the problem with having too many erythrocytes?

A

Too many erythrocytes increases hematocrit therefore increases viscosity exponentially, making it difficult to pump

603 Physiology (22 decks)

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