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1) In general, what is blood? 2) What is the extracellular matrix of blood? Why

ID: 3475514 • Letter: 1

Question


1) In general, what is blood? 2) What is the extracellular matrix of blood? Why is referred to as extracellular? 3) What specialized cells is blood composed of and, collectively, what are these cells called? 4) Distinguish between intracellular, interstitial, intravascular, and extracellular with respect to body fluids. 5) Blood has soluble "pre-fiber" proteins. Give an example and explain why it referred to as "pre-fiber" 6) Distinguish between hemostasis and homeostasis. How are they related? 7) Approximately how much of blood is composed of non-liquid "stuff"? 8) What is fibrin? Why is it important? 9) What is thrombin? What relationship does it have with fibrin? 10) List the three (3) main functions of blood. 11) Is blood slightly acidic or alkaline? 12) What is meant by "blue" blood? Cyanosis? 13) Identify three important hormones in the regulation of blood volume and osmotic conditions. Compare their actions with respect to blood volume 14) What is natriuresis? 15) What is the basic principle behind using a centrifuge to separate out the components of blood? In other words, why does blood separate out into layers? 16) When blood is centrifuged, what are the different layers that result? 17) What is a "buffy coat" with respect to centrifuged blood? 18) What is plasma? What is it composed of? 19) What property of blood makes it caabg a a solvent and as a regulator of heat? 20) Which blood component is a major factor in hemostasis?

Explanation / Answer

Answer 1 and 3

Blood is specialized body fluid and its main components are erythrocytes (RBC), leukocytes (WBC), blood plasma and thrombocytes (platelets) and plasma constitutes glucose, electrolytes (Na+, Ca2+, Mg2+, HCO3, Cl, etc.), proteins (albumins, fibrinogen etc.), clotting factors, hormones, oxygen (facilitate transport) etc.

Answer 2 & 4

The fluids of the body can be classified into two main divisions:

Before any explanation, we have to know what does these word means, so that we can understand why they are called so;

Intracellular means “occurring within cells”

Interstitial means “within the cell or fibre of tissue”

Intravascular means “within a blood vessel or blood vascular system”

Extracellular means “taking place outside a cell or cells”

The intracellular fluid consist fluid of the cytosol or cytoplasm and it is the fluid found inside cells.

Interstitial fluid also called as tissue fluid and it is found in the interstitial spaces, also known as the tissue spaces.

Intravascular fluid is found inside the blood vessels and lymphatic vessels.

Extracellular fluid is the overall body fluid which is present outside of the cells. It is composed of; interstitial fluid, intravascular fluid and blood plasma.