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Blood and It's Composition Essay

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Below is an essay on "Blood and It's Composition" from Anti Essays, your source for research papers, essays, and term paper examples.

CHAPTER 20 – BLOOD
COMPOSITION OF BLOOD
Whole blood constitutes about 8% of total body weight, Plasma accounts for 55%, and the Formed Elements account for about 45% of the total blood volume.

FORMED ELEMENTS – this term is used to designate the various kinds of blood cells that are normally present in blood. (Platelets, Leukocytes, Erthyrocytes) 45%
PLASMA – is one of the three major body fluids, (Interstitial, and Intracellular fluids) are the other two. 55%
BLOOD PROTEINS
  * Albumin (liquid gold) 57%
  * Globulins 38%
  * Fibrinogen 4%   used in coagulation
  * Prothrombin 1%   used in coagulation
LEUKOCYTE TYPES AND PERCENTAGES
  * 60% - Neutrophils – acute bacterial, stress, and fungi
  * 30% Lymphocytes - viral
  * 8% Monocytes – chronic bacterial
  * 2% Eosinophils – allergies & large parasites
  * 0% Basophils – Inflammation
**Neumonic –
60 30 8 2 0 – Never Let My Engine Blow (for Leukocyte type & %)
PACKED CELL VOLUME (PCV) – hematocrit, used to describe the volume percent of red blood cells in whole blood.
ANEMIAS – conditions that result in decreased RBC numbers, and characterized by a reduced hematocrit value.
PHYSIOLOGICAL POLYCYTHEMIA (condition of many blood cells) – Healthy individuals who live and work in high altitudes often have elevated RBC numbers and hematocrit values.
ERYTHROCYTE SEDIMENTATION RATE (ESR) – test for inflammation.
BUFFY COAT – that thin white layer of leukocytes and platelets, present at the interface between the packed red cells and plasma.
RED BLOOD CELLS
ERYTHROCYTE – is unique in the fact, it does not contain ribosomes, mitochondria or other organelles typical of most body cells. It is a red protein pigment, hemoglobin.   It accounts for more than 1/3 of the cell volume and is critically important to its primary function.
  * In Men – RBC counts average about 5,500,000/mm3
  * In Women – RBC counts average about 4,800,000/mm3
FORMATION OF RED BLOOD CELLS
*Starts with the...

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