NHA PHLEBOTOMY NATIONAL EXAM
COMPLETE QUESTION BANK AND ANSWER
KEY 2026
◉ Circulatory system function. Answer: deliver oxygen, nutrients,
hormones, & enzymes to cells and transport cellular waste (CO2) to
organs where they can be expelled
◉ The two circulations. Answer: Pulmonary & Systemic
◉ Pulmonary circulation. Answer: carries deoxygenated blood from
the right ventricle to the lungs and returns oxygenated blood from
lungs to left atrium
◉ Where does oxygenation take place in the lungs?. Answer: alveoli
◉ Systemic circulation. Answer: carries oxygenated blood from left
ventricle throughout the body
◉ Upper chambers of the heart. Answer: right and left atria
◉ lower chambers of the heart. Answer: right and left ventricle
,◉ tricuspid valve. Answer: atrioventricular valve, situated between
right atrium and right ventricle
**to remember this valve is on the right side of the heart-- people
TRY to be RIGHT
◉ pulmonic valve. Answer: semi-lunar valve situated between the
right ventricle and the pulmonary artery
◉ Mitral valve (or bicuspid). Answer: atrioventricular valve located
between the left atrium and left ventricle
◉ aortic valve. Answer: semi lunar valve situated between the left
ventricle and aorta
◉ 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
◉ 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
COMPLETE QUESTION BANK AND ANSWER
KEY 2026
◉ Circulatory system function. Answer: deliver oxygen, nutrients,
hormones, & enzymes to cells and transport cellular waste (CO2) to
organs where they can be expelled
◉ The two circulations. Answer: Pulmonary & Systemic
◉ Pulmonary circulation. Answer: carries deoxygenated blood from
the right ventricle to the lungs and returns oxygenated blood from
lungs to left atrium
◉ Where does oxygenation take place in the lungs?. Answer: alveoli
◉ Systemic circulation. Answer: carries oxygenated blood from left
ventricle throughout the body
◉ Upper chambers of the heart. Answer: right and left atria
◉ lower chambers of the heart. Answer: right and left ventricle
,◉ tricuspid valve. Answer: atrioventricular valve, situated between
right atrium and right ventricle
**to remember this valve is on the right side of the heart-- people
TRY to be RIGHT
◉ pulmonic valve. Answer: semi-lunar valve situated between the
right ventricle and the pulmonary artery
◉ Mitral valve (or bicuspid). Answer: atrioventricular valve located
between the left atrium and left ventricle
◉ aortic valve. Answer: semi lunar valve situated between the left
ventricle and aorta
◉ 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
◉ 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
