Cardiac/Respiratory
Clicker Quiz
Human Biology
S
A mammalian heart has ___chamber(s)
A.
B.
C.
D.
One
Two
Three
Four
In a mammal, blood pressure is
lowest in the
A. Aorta
B. Vena cavae
C. Capillaries of the arm
D. Veins of the leg
Blood leaves the human heart from:
A. Left and right atria
B.
Left ventricle only
C.
Right ventricle only
D. Right ventricle and left ventricle
The term vasoconstriction refers to
A. Increasing the size of the lumen of the
blood vessel
B. Decreasing the size of the lumen of the
blood vessel
C. Delivering oxygen and nutrients to the
body tissues
D. Delivering waste products to the kidney
for excretion
Which of the following represents the flow of
blood from the heart to the body organs and
back to the heart?
A. Venules to capillaries to veins to arteries
B. Arteries to capillaries to veins
C. Capillaries to arterioles to veins
D. Veins to arteries to capillaries to arterioles
Which of the following chambers of the
heart receives blood from the lungs?
A. Right atrium
B.
Left atrium
C.
Right ventricle
D. Left ventricle
This bag is a thin membrane
that surrounds the heart.
A. Visceral pleura
B. Auricle
C. Pericardium
D. Thalamus
Starting from the right atrium, which of the
following is the correct pathway for blood to
flow through the human circulatory system?
A. Mitral valve, right ventricle, pulmonary vein, aorta
B. Right ventricle, pulmonary artery, left atrium, aorta, left
ventricle
C. Tricuspid valve, right ventricle, pulmonary artery, left
atrium
Systemic circulation refers to
the circulation of blood:
A. To the lungs and back
B. Within the brain
C. Throughout the body
D. Within the heart
True/False: The left side of the heart
pumps the same amount of blood as the
right.
A. True
B. False
True/False: An obstruction in the superior vena
cava would decrease the flow of blood from the
head and neck to the heart.
A. True
B. False
Which of the following are involved
directly in the pulmonary circulation?
A. Superior vena cava, right atrium and left ventricle
B. Right ventricle, pulmonary artery and left atrium
C. Left ventricle, aorta and inferior vena cava
D. Right atrium, aorta and left ventricle
The second heart sound, described as
“dub” is actually the
A. Atria contracting
B. Ventricles contracting
C. Atrioventricular valves closing
D. Semilunar valves closing
E. Heart slapping the liver
The tricuspid valve is closed
A. While blood flows from the right ventricle to the
pulmonary trunk
B. While blood flows from the atrium to the ventricle
C. By the movement of blood from the superior vena cava to
the right atrium
D. While the atrium is contracting
The valve located between the left atrium and
left ventricle is the
A. Aortic semilunar valve
B. Bicuspid (mitral) valve
C. Pulmonary semilunar valve
D. Tricuspid valve
Strong connective tissue strings that are
attached to papillary muscles and to the cusps
of the atrioventricular valves are
A. Musculi pectinati
B. Traveculae carnae
C. Chordae tendinae
D. The interventricular septum
Which statement best describes
arteries?
A. All carry oxygenated blood to the heart
B. All carry blood away from the heart
C. All contain valves to prevent the backflow of blood
D. Only large arteries are lined with endothelium
Select the correct statement
about the heart valves
A. The mitral valve separates the right atrium from the right
ventricle
B.
The tricuspid valve divides the left atrium from the left ventricle
C. Aortic and pulmonary valves control the flow of blood into the
heart
D. The AV valves are supported by the chordae tendinae so that no
regurgitation of blood into the atria occurs
Blood within the pulmonary
veins returns to the _____.
A. Right atrium
B. Left atrium
C. Right ventricle
D. Left ventricle
Which vessel(s) of the heart receive(s)
blood during right ventricular
contraction?
A. Vena cava
B. Pulmonary trunk
C. Aorta
D. Pulmonary veins
The nose serves all the following functions
except
A.
B.
C.
D.
As a passageway for air movement
As the initiator of the cough reflex
Warming and humidifying the air
Cleansing the air
Surfactant helps to prevent the alveoli from
collapsing by
A.
B.
C.
D.
Humidifying the air before it enters
Warming the air before it enters
Interfering with the cohesiveness of water molecules, thereby
reducing the surface tension of alveolar fluid
Protecting the surface of alveoli from dehydration and other
environment variations
The respiratory membrane is a combination
of
A.
B.
C.
D.
Respiratory bronchioles and alveolar ducts
Alveolar walls, alveolar space and capillary walls
Atria and alveolar sacs
None of the above
The pleurae are vital to the integrity of the
lungs because they
A.
B.
C.
D.
Contain cilia that protect the lungs
control the volume of the lungs
Secrete a lubricating serous fluid, allowing the lungs to glide
over the thoracic wall during breathing
Maintain the proper temperature of the lungs during sleep