Blood Part one.
Blood is a suspension of cells in fluid. It is circulated around the body by the heart and,as a result of this circulation,blood serves as the transport vehicle for gases,nutrients,waste products,cells and hormones.
The fluid is known as plasma and typical sample is composed of 90% water,8% protein,1% inorganic salts,0.5% lipids,0.1% glucose and other miner components.The proteins are numerous and diverse, including albumin,blood coagulation factors,anti-proteases,transport proteins and antibodies(immunoglobulins). Collectively, these proteins exert a water blinding effet known as colloidal osmotic pressure which helps regulate the distribution of fluid between the plasma and the extracellular space,serving to keep the fluid in the circulation.
Plasma components,including hormones,lipids,salts,water molecules and small proteins, are constantly exchange with the extracellular fluid of body tissues in accordance with the blood's transport functions.Proteins and plasma are not demonstrated by light microscopy except as a background colour.
Blood is a suspension of cells in fluid. It is circulated around the body by the heart and,as a result of this circulation,blood serves as the transport vehicle for gases,nutrients,waste products,cells and hormones.
The fluid is known as plasma and typical sample is composed of 90% water,8% protein,1% inorganic salts,0.5% lipids,0.1% glucose and other miner components.The proteins are numerous and diverse, including albumin,blood coagulation factors,anti-proteases,transport proteins and antibodies(immunoglobulins). Collectively, these proteins exert a water blinding effet known as colloidal osmotic pressure which helps regulate the distribution of fluid between the plasma and the extracellular space,serving to keep the fluid in the circulation.
Plasma components,including hormones,lipids,salts,water molecules and small proteins, are constantly exchange with the extracellular fluid of body tissues in accordance with the blood's transport functions.Proteins and plasma are not demonstrated by light microscopy except as a background colour.
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