function
- oxygen transport
- carries nutrients to the circulation
- carry waste products
- circulates hormones and immune substances
- controls body pH
- Thermoregulation
- hydraulics
- plasma
- 55% of the whole blood
- straw yellow in color
- carries
- glucose
- fatty acid
- lactic acid
- amino acid
- urea
- hormone
- immune subs.
- erythrocytes (RBC)
- leukocytes (WBC)
- thrombocytes (platelets)
- stays in the circulation for 120 days
- composed of two substance the heme and the globin
- heme is the pigment that causes the red color of blood
- globin is the protein ion atoms that carries the carbondioxide when exchange of gas is happening
- 2 types: agranular means absence of granules and the granular or with granules
- in granular theres 3 cells present:
- Basophil-involved in allergic reactions. Secretes histamine, heparin & vasopresin
- Neutrophil- stays in the circulation for 12 hours, most common leukocyte, a phagocytic cell, secretes lysozyme( destroys bacterias)
- Eosinophil-combats irritants, produce antihistamines and a defense against parasites.
- in agranular theres 2 cell present:
- Monocyte- largest of all the leukocytes, stays in the circulation for 3 days, a phagocytic cell, it increases in size then becomes Macrophages.
- Lymphocyte- called B-lymphocyte when produced in bones and T-lymphocyte when produced in the thymus gland, smallest of all the leukovytes, produces antibodies, controls cancer cells, destroys microorganisms and rejects foreign tissues (implants).
- called plateslets
- disk like fragments
- with nucleus
- stays in the circulation for 1 week
- responsible for blood clotting
- hemoglobin is bright red in color when oxygenated and dark red with hue of blue if deoxygenated.
- in carbonmonoxide poisoning the blood is bright red in color.
- abscence of plasma the blood will be too viscou
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