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A&P midterm 1-1
OSU A&P midterm 1
| Question | Answer |
|---|---|
| What are the two major components of blood? What is the most abundant formed element? | •Plasma = 50-60%- non-cellular fluid matrix (water & dissolved proteins, etc •Formed elements = 40-50%- include erythrocytes, leukocytes, and Platelets •Formed element = Erythrocytes = Red Blood Cells = RBC’s = 99.9% of blood’s formed elements |
| What are two important components of plasma? What are three proteins dissolved in plasma and what is the role of each? | •Water (92%) and dissolved proteins (7%) •3 proteins o Albumins- maintain osmotic pressure o Globulins- immune proteins o Fibrinogens- clotting |
| What features of the RBC make it particularly well suited for its job? | •Small size and shape provide large surface area/volume •97% hemoglobin/RBC- dry content (280 million hemoglobin molecules per RBC) •Lack mitochondria- don’t burn oxygen (increased efficiency) •Flexible & stackable |
| 4. What is hemoglobin? Where is hemoglobin found in the body and what is its function? Where does hemoglobin pick up oxygen? Where does hemoglobin give up oxygen? | •Hemoglobin is the iron-containing oxygen-transport metalloprotein in the red blood cells in tissues. Hemoglobin transports oxygen from the lungs to peripheral tissues and carbon dioxide from peripheral tissues to lungs. |
Created by:
Jacobszoon
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