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1. What are the blood cells responsible for carrying oxygen to body tissues?-
: Erythrocytes
2. Which is not a function of blood?: a. participates in the initiation of blood clotting
b. transports a variety of nutrients
c. produces hormones
d. helps stabilize the pH of extracellular fluids
Answer: C
3. Which is not a component of the circulatory system?: a. blood
b. blood vessels
c. heart
d. lungs
Answer: D
4. Describe blood plasma: clear, light-yellow fluid and makes up 55% of the blood
volume
*antibodies are found in the plasma*
5. What makes up the formed elements within blood?: 45% of blood volume,
consists of:
- erythrocytes (RBCs)
- leukocytes (WBCs)
- thrombocytes (platelets)
6. What does the "Buffy coat" consist of?: white blood cells and platelets
7. Upon centrifuging of a blood tube, which component will be at the bottom
of the tube?: erythrocytes (red blood cells)
8. What is the term for the value representing the percentage of RBCs in the
total blood volume?: Hematocrit
9. What is the average blood volume in adults?: 4-6 Liters
10. What is the pH of blood?: 7.35-7.45
11. Name the major plasma proteins in blood plasma: 1. albumin (60%) - trans-
port & buffer pH
2. globulins (26%) - immunity
3. fribrinogen (4%) - blood clotting
12. Which component of blood would you need to determine if a patient had a
sodium imbalance?: a. Buffy coat
b. White blood cells (WBCs)
c. Platelets
d. Hematocrit
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, Anatomy & Physiology III (BIOS 255) - EXAM 1 REVIEW
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e. Red blood cells (RBCs)
f. Plasma
Answer: F
13. Which plasma protein has the greatest influence on blood pressure and
blood volume?: albumin
14. What is the primary hematopoietic tissue responsible for producing blood
cells after birth?: red bone marrow
15. What is erythropoiesis?: production of red blood cells
*secretion of hormone erythropoietin (EPO)*
hormone is found *primarily from kidneys (85%) & also in liver (15%)*
16. What is leukopoiesis?: production of white blood cells
*stimulated by hormones called colony stimulating factors (CSFs).
17. What is thrombopoiesis?: production of platelets (thrombocytes)
*regulated by hormone thrombopoietin (TPO), which is produced by the liver and
kidneys
18. The hormone erythropoietin (EPO) that regulates the production of ery-
throcytes is mainly produced where?: kidneys
19. Name the major functions of the cardiovascular system: 1. transport (blood
and other substances throughout the body)
2. regulation of body fluids, temperature, and pH
3. protection against pathogens
20. What does blood protein concentration do as a result of liver failure?: It
decreases, and water accumulates in tissue spaces.
21. Which is removed from plasma to create blood serum?: a. Electrolytes
b. Glucose
c. Clotting proteins (fibrinogen)
d. Water
e. Nitrogenous wastes
f. Albumin
Answer: C
22. Identify all sites of hematopoiesis in an adult. Select all that apply.: a. Femur
b. Sternum
c. Metacarpal
d. Parietal bone
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