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Cardiac Cycle > Single And Double Circulation > Flashcards

Single And Double Circulation Flashcards

1
Q

What has a single circulatory system?

A

Fish

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2
Q

What has a double circulatory system?

A

Mammals

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3
Q

What is the order of circulation in fish?

A

Heart > Gills > Tissues > Heart

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4
Q

How many pumps are there are in single circulatory systems?

A

1 pump

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5
Q

What are the characteristics of single circulation?

A

Blood loses pressure quickly
Less complex
Can only support animals with a lower demand for oxygen

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6
Q

What type of circulation do cold blooded animals have?

A

Single circulation

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7
Q

How many pumps are there a double circulation system?

A

2 pumps

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8
Q

What are the circulation names in a double circulatory system?

A

Pulmonary circulation

Systemic circulation

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9
Q

What is the role of the second pump in double circulatory systems?

A

Re-pressusize blood before going to whole body after lungs

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10
Q

What is Pulmonary circulation?

A

Blood pumped to lungs to receive oxygen

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11
Q

What is Systematic circulation?

A

Blood carrying oxygen and nutrients pumped to body and tissues

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12
Q

What are the advantages of double circulation?

A

Blood flows quicker to tissue as has higher pressure.

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13
Q

What has a higher block pressure? Pulmonary circulation or systematic circulation?

A

Systematic circulation has higher blood pressure

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14
Q

Why does the pulmonary circulation have a lower blood pressure than systematic?

A

Capillaries in lungs could be damaged if pressure was too high
Not pumped as far by the heart

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15
Q

What type of circulation do insects have?

A

Open circulatory system

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16
Q

What is a open circulatory system?

A

Blood is not held within blood vessels but is free in the body cavity.

17
Q

Why do larger animals not have open circulatory systems?

A

They would not receive sufficient amounts oxygen and nutrients to all parts of the body

18
Q

What are the characteristics of open circulatory systems?

A

Blood flows slow

Pressure is low

19
Q

Why do insects use open ciruculatory systems?

A

Insects are small

Don’t rely on blood to transport oxygen and carbon dioxide

Cardiac Cycle (6 decks)

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