Topic 1 Pack 5- Biology

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Biology

Anatomy

A-Level Biology

Edexcel A (SNAB)

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7 Terms

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Blood Pressure

The hydrostatic force of blood against blood vessel walls

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elevated blood pressure

hypertension

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blood pressure units

mmHg

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peripheral resistance

friction caused by contact between the blood vessel walls & flow of blood, slowing the flow of blood

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oedema

build up of tissue fluid due to high blood pressure

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where does tissue fluid go after the oxygen and nutrients have been absorbed?

20% is absorbed into the blind ended lymph capillaries and eventually returns to blood through thoracic duct. The rest immediately reenters the blood.

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what is tissue fluid composed of?

blood plasma containing dissolved oxygen and nutrients