Earlham High School
Anatomy Class
Cardiovascular
System
#1
The main organ of the cardiovascular system is the:
A: Lungs
B:
Heart
C: Liver
D:
Your mom!
B: Heart
#2
Which of the following structures consists
of self-exciting tissue?
A: chordae tendineae
B:
papillary muscles
C: sinoatrial node
D:
atrial syncytium
C: sinoatrial
node
#3
Platelets are best defined as
A: Giant, multinucleated
B:
Cytoplasmic
fragments of cells
D:
Lymphoid cells
cells
C: Immature leukocytes
B:
cytoplasmic
fragments of
cells
#4
The tissue that forms a loose-fitting sac
Around the heart is the
A: pericardium
B:
epicardium
C: endocardium
D:
exocardium
A:
pericardium
#5
Nonprotein nitrogenous substances include
A: Amino acids
B:
Urea
C: Uric acid
D:
All of the above
D: All of the
above
#6
Of the following, the one that is not a type
of plasma protein:
A: Heparins
B:
Fibrinogens
C: Albumins
D:
Globulins
A: Heparins
#7
Of the following, the one that is not a factor
that influences blood pressure:
A: Blood volume
B:
Viscosity
C: Digestive rate
D:
Stroke volume
C: Digestive
rate
#8
A normal white blood cell count (WBCC) is between
A: 500-1000/mm3 of blood
B:
5000-10,000/mm3 of
blood
C: 50,000-100,000/mm3 of
D:
15,000-25,000/mm3 of
blood
blood
B: 500010,000/mm3
of blood
#9
The basic event in the formation of a blood clot
is the change of
A: Fibrinogen to fibrin
B:
Fibrin to fibrinogen
C: Thrombin to
D:
Vitamin K to
prothrombin
prothrombin
A: Fibrinogen
to fibrin
#10
The most important action of plasma albumin is
A: Acting as antibodies of
B:
Helping to control
bleeding
D:
Helping to maintain
blood osmotic pressure
immunity
C: Serving as energy
sources
D: Helping to
maintain
blood osmotic
pressure
#11
When the ventricular walls contract, the
Bicuspid valve opens
A: and the tricuspid valve
B:
closes
C: Bicuspid and tricuspid
valves close
D:
Tricuspid valve opens
and the bicuspid valve
closes
Bicuspid and tricuspid
valves open
C: Bicuspid
and tricuspid
valves close
#12
The most active phagocytic cells among the
leukocytes are
A: Basophils and
B:
Neutrophils and
monocytes
D:
Monocytes and
lymphocytes
eosinophils
C: Lymphocytes and
neutrophils
B:
Neutrophils
and
monocytes
#13
The density of capillaries within a tissue varies
directly with the tissue’s
A: Thickness
B:
Fluid content
C: Type of matrix
D:
Rate of metabolism
D: Rate of
metabolism
#14
In an ECG pattern, the T wave is caused by
A: Polarization of atrial
muscle fibers
C: Depolarization of atrial
muscle fibers
B:
Polarization of
ventricular muscle
fibers
Depolarization of
D: ventricular muscle
fibers
B:
Polarization
of ventricular
muscle fibers
#15
In an ECG pattern, the P wave is caused by
A: Polarization of atrial
B:
Polarization of
ventricular muscle
fibers
D:
Depolarization of
ventricular muscle
fibers
muscle fibers
C: Depolarization of atrial
muscle fibers
C:
Depolarization
of atrial
muscle fibers
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