Wednesday 6 March 2013

PHYSICAL CHARACTERISTICS OF BLOOD

PHYSICAL CHARACTERISTICS OF BLOOD

   - Is denser and more viscous than water

   - Feels slightly sticky

   - Temperature -  38 °C - 100.4 °F

   - slightly alkaline pH ranging from 7.35 - 7.45



COLOR

   - Color varies with its oxygen content

      - High oxygen content - bright red

      - Low oxygen content  - dark red


Constitutes

   - 20 % of extra cellular fluid

   - 8 % of total body mass



VOLUME

    Adult male - 5-6 liters

Adult female - 4-5 liters




IMPORTANT HORMONES ENSURING BLOOD VOLUME AND OSMOTIC PRESSURE RELATIVELY CONSTANT

1. Aldosterone

2. ADH

3. Atrial natriuretic peptide



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