Niology B5 unit

All of the biology unit B5

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the heart

Describe the difference between a single circularatory system to a double circularatory system.

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the heart

single circularatory: blood passes through the heart once to reach all parts of the body. Eg: fish or shark

Double circularatory:blood passes through the heart twice. Eg: one circuit to the lungs one to the body.

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the heart

what are these and what do they do:

-the coronary artery

- pace maker cells

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the heart

coronary artery = the artery that supplies blood to the heart.

pace maker cells= send an electric current to control the beating of the heart.

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the heart

what other ways can doctors monitor the beating of your heart?

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the heart

an ECG or EKG

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the heart

what is an echodiagram?

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the heart

an ultra sound image of the heart

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