PHLEBOTOMY NATIONAL EXAM (NHA) 187
Q&A/ A+ SCORE SOLUTION.
Flow of blood through the heart - Answer: Superior and Inferior Vena Cavae<
Right atrium< tricuspid valve< right ventricle< pulmonic valve< pulmonary artery<
lungs< pulmonary vein< left atrium< mitral (bicuspid) valve< left ventricle< aorta<
rest of body
Three layers of the heart - Answer: Endocardium, myocardium, epicardium
Blood vessels - Answer: arteries, arterioles, capillaries, venules, veins, superior &
inferior vena cavae
aorta, arteries, and arterioles carry_____ blood _______ the heart - Answer:
oxygenated & away from
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,venules, veins, and superior and inferior vena cave carry _____ blood ________
the heart - Answer: deoxygenated & back to
The average adult has ______ liters of blood - Answer: 5-6
Plasma comprises how much of circulating blood? - Answer: 55%
Plasma contains.... - Answer: proteins, amino acids, gases, electrolytes, sugars,
hormones, minerals, vitamins, and water
What percent of plasma is water? - Answer: 92%
Formed elements comprise what percent of circulating blood? - Answer: 45%
another name for red blood cells... - Answer: Erythrocytes
What makes up the formed elements? - Answer: Red blood cells, White blood
cells, and platelets
Another name for white blood cells... - Answer: leukocytes
another name for platelets... - Answer: thrombocytes
What comprises 99% of the formed elements? - Answer: red blood cells
(erythrocytes)
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, Where do blood cells originate? - Answer: stem cells in bone marrow
How many RBCs are in a microliter of blood? - Answer: 4.2 to 6.2 million
Normal life span of an RBS is... - Answer: 120 days
Function of a leukocyte - Answer: provide the body protection against infection
Amount of WBCs per microliter of blood - Answer: 5,000-10,000
leukocytosis - Answer: increase in WBCs
leukocytosis is seen when? - Answer: cases of infection and leukemia
leukopenia - Answer: decrease in WBCs
leukopenia is seen when? - Answer: viral infections or chemotherapy
Five types of WBCs - Answer: neutrophils, lymphocytes, monocytes, eosinophils,
basophils
Average number of platelets per microliter of blood - Answer: 140,000-440,000
Hemostasis - Answer: process by which blood vessels are repaired after injury
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Q&A/ A+ SCORE SOLUTION.
Flow of blood through the heart - Answer: Superior and Inferior Vena Cavae<
Right atrium< tricuspid valve< right ventricle< pulmonic valve< pulmonary artery<
lungs< pulmonary vein< left atrium< mitral (bicuspid) valve< left ventricle< aorta<
rest of body
Three layers of the heart - Answer: Endocardium, myocardium, epicardium
Blood vessels - Answer: arteries, arterioles, capillaries, venules, veins, superior &
inferior vena cavae
aorta, arteries, and arterioles carry_____ blood _______ the heart - Answer:
oxygenated & away from
Page 1 of 20
,venules, veins, and superior and inferior vena cave carry _____ blood ________
the heart - Answer: deoxygenated & back to
The average adult has ______ liters of blood - Answer: 5-6
Plasma comprises how much of circulating blood? - Answer: 55%
Plasma contains.... - Answer: proteins, amino acids, gases, electrolytes, sugars,
hormones, minerals, vitamins, and water
What percent of plasma is water? - Answer: 92%
Formed elements comprise what percent of circulating blood? - Answer: 45%
another name for red blood cells... - Answer: Erythrocytes
What makes up the formed elements? - Answer: Red blood cells, White blood
cells, and platelets
Another name for white blood cells... - Answer: leukocytes
another name for platelets... - Answer: thrombocytes
What comprises 99% of the formed elements? - Answer: red blood cells
(erythrocytes)
Page 2 of 20
, Where do blood cells originate? - Answer: stem cells in bone marrow
How many RBCs are in a microliter of blood? - Answer: 4.2 to 6.2 million
Normal life span of an RBS is... - Answer: 120 days
Function of a leukocyte - Answer: provide the body protection against infection
Amount of WBCs per microliter of blood - Answer: 5,000-10,000
leukocytosis - Answer: increase in WBCs
leukocytosis is seen when? - Answer: cases of infection and leukemia
leukopenia - Answer: decrease in WBCs
leukopenia is seen when? - Answer: viral infections or chemotherapy
Five types of WBCs - Answer: neutrophils, lymphocytes, monocytes, eosinophils,
basophils
Average number of platelets per microliter of blood - Answer: 140,000-440,000
Hemostasis - Answer: process by which blood vessels are repaired after injury
Page 3 of 20
