Anatomy & Physiology: Instructor’s Manual 26
7. Although plasma is ________ percent water, it
also transports ________ and ________.
a. 70%, cells, proteins
b. 50%, oxygen, carbon dioxide
✔✔c. 90%, nutrients, wastes
d. 20%, lymphocytes, bone particles
8. Platelets stop blood loss by:
a. Collecting and adhering at the site of damage
b. Triggering a reaction that promotes the
formation of fibrin threads
c. Forming a platelet plug
✔✔d. All of the above
9. B and T cells spend most of their time in the
________.
a. Bloodstream
✔✔b. Lymphatic system
c. Heart chambers
d. Capillaries
10. Blood traveling from the lungs is ________, and
blood traveling to the lungs is ________.
✔✔a. Oxygenated, deoxygenated
b. Deoxygenated, oxygenated
c. High-pressure, low-pressure
d. Nitrogen-rich, nitrogen-poor
29.a. Heart Multiple Choice
1. The heart is located ________ the thoracic
cage, ________ the lungs, and ________ to the
diaphragm.
a. Lateral to, within, inferior to
b. Inside, inferior to, between
✔✔c. Within, between, superior to
d. To the left of, beneath, behind
2. The flow of blood through the heart and
pulmonary circulation occurs in which sequence?
a. Left atrium, mitral valve, left ventricle, aortic
valve, right atrium, tricuspid valve, right
ventricle, pulmonary valve
✔✔b. Right atrium, tricuspid valve, right ventricle,
pulmonary valve, pulmonary circulation, left
atrium, mitral valve, left ventricle, aortic valve
c. Aortic valve, right ventricle, mitral valve, right
atrium, superior vena cava
d. Right atrium, left atrium, mitral valve, right
ventricle, left ventricle, tricuspid valve,
pulmonary circulation, pulmonary valve, aorta
3. Blood moving from the atria into the ventricles
flow through which two valves?
a. Pulmonary and mitral (bicuspid or left AV)
b. Aortic and pulmonary
✔✔c. Tricuspid (right AV) and mitral (bicuspid or left
AV)
d. Tricuspid (right AV) and aortic
4. Which part of the heart’s conduction system
sends the impulse that begins the process of
conduction?
a. Atrioventricular (AV) node
✔✔b. Sinoatrial (SA) node
c. Bundle of His
d. Purkinje fibers
5. An impulse travels through the heart’s
conduction system in which of the following
sequences?
a. Atrioventricular (AV) node, bundle of His,
sinoatrial (SA) node, bundle branches, Purkinje
fibers
b. Bundle of His, sinoatrial (SA) node, bundle
branches, Purkinje fibers, atrioventricular (AV)
node
c. Purkinje fibers, bundle branches, bundle of His,
sinoatrial (SA) node, atrioventricular (AV) node
✔✔d. Sinoatrial (SA) node, atrioventricular (AV) node,
bundle of His, bundle branches, Purkinje fibers
6. The function of coronary circulation is to:
a. Regulate the cardiac cycle
b. Deliver oxygenated blood from the lungs into
systemic circulation
✔✔c. Supply cardiac muscle with oxygenated blood
and drain deoxygenated blood from it
d. Drain excess blood from the ventricles
7. The layer of the heart wall primarily responsible
for the heart’s pumping action is the:
✔✔a. Myocardium
b. Endocardium
c. Epicardium
d. Pericardium
8. During ________, the ventricles contract and
blood pumps out of the heart. During ________,
the ventricles relax and blood flows into the heart.
a. Diastole, systole
✔✔b. Systole, diastole
c. Inhalation, exhalation
d. Cardiac circulation, pulmonary circulation