PHYSIOLOGY
BLOOD PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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blood and lymph.
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sodium and potassium.
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serum and plasma.
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blood cells and platelets.
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Detailed explanation-1: -The formed elements are cells and cell fragments suspended in the plasma. The three classes of formed elements are the erythrocytes (red blood cells), leukocytes (white blood cells), and the thrombocytes (platelets).
Detailed explanation-2: -Blood is composed of formed elements-erythrocytes, leukocytes, and cell fragments called platelets-and a fluid extracellular matrix called plasma.
Detailed explanation-3: -The nonfluid portion of blood consists of various types of formed elements, so called because they are all formed from the same stem cells found in bone marrow.
Detailed explanation-4: -Red blood cells are formed in the red bone marrow of bones. Stem cells in the red bone marrow are called hemocytoblasts. They give rise to all of the formed elements in blood. If a stem cell commits to becoming a cell called a proerythroblast, it will develop into a new red blood cell.