Question

Blood tests can be used to determine which substances are present within blood and in what...

Blood tests can be used to determine which substances are present within blood and in what quantities.

  1. What are the three main components of blood?
  2. How do each of these components contribute to the characteristics of blood?
  3. How does a decreased hematocrit percentage affect blood physiology at the cellular level? What effects can be seen at the organismal level?
Science   Anatomy-And-Physiology   
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Answer #1

A,

The 3 major components of blood are:

Red blood cells

White blood cells

Platelets

B,

Red blood cells gives the red color to the blood. They contain hemoglobin which carries the oxygen and distributed to different cells present in the body.

White blood cells are responsible for defensive function of blood. They act against pathogenic organisms and protect the body from infection and provide signs of any infection in the body.

Platelets are responsible for blood coagulation.

C,

Decreased hematocrit percentage or otherwise called as anemia it means  the percentage of red blood cells is below the lower limits of normal. So the physiological change seen in the cellular level is lack of oxygen at cellular level. Because of the red blood cells transport oxygen and its deficency lead to decreased amount of oxygen at cellular level and cell cannot do their activity.

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