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WorksheetsPN Exam 4 Practice
Total questions: 25
Worksheet time: 13mins
Which of the following represents the amount of air that can be expelled from the lungs by maximum exhalation following maximum inhalation?
vital capacity
total lung capacity
residual volume
residual volume
Peripheral chemoreceptors that regulate breathing are located in the:
brachiocephalic vein and superior vena cava
carotid and aortic bodies
cerebellum and pons
coronary sinus and alveoli
Orthopnea means:
cessation of breathing
difficult or labored breathing
a breathing difficulty that is relieved by sitting upright
rhythmic variation in breathing
Which of the following describes the layering, in order from top to bottom, of a test tube of blood that has been “spun down” in a centrifuge?
plasma, red blood cells, buffy coat
buffy coat, plasma, red blood cells
plasma, buffy coat, red blood cells
red blood cells, buffy coat, plasma
Polymorphs (polys), segs, and band cells are:
platelets that become sticky and form a plug
erythrocytes that carry oxygen throughout the body.
neutrophils.
antibody-secreting agranulocytes
Which white blood cells secrete heparin?
eosinophils
monocytes
neutrophils
basophils
The blood type that has antigen A on the cell and anti-B antibody in the plasma is:
type O
type AB
type A
type B
Vasospasm, platelet plug, and blood coagulation are most related to which process?
agglutination
phagocytosis
fibrinolysis
hemostasis
The innermost layer of the heart is called the::
epicardium
endocardium
visceral pericardium
both A and C above
Oxygenated blood is found in which structure?
right ventricle
right atrium
pulmonary artery
pulmonary veins
When the left ventricle contracts, it pushes blood through a valve to the:
aorta
pulmonary artery
pulmonary vein
inferior vena cava
A disease of the arteries in which cholesterol-containing masses called plaque accumulate on the inside of the arterial walls is known as ____.
venosclerosis
arteriomyopathy
arteritis
atherosclerosis
Activation of the muscarinic receptors by acetylcholine:
increases myocardial contractile force
slows heart rate
increases cardiac output
causes a (+) chronotropic effect
Which of the following is classified as killer, helper, suppressor, and memory?
Granulocytes
Antibodies.
T cells.
Vaccines.
Which of the following cells engulfs the pathogen to achieve “antigen presentation”?
Red blood cells.
Antibodies.
Macrophages.
Vaccines.
What happens if the lymphatic vessels and nodes are removed from the right axillary region?
The right arm will become gangrenous from lack of oxygen.
All lymph will drain directly into the superior vena cava.
The patient will experience anginal pain.
The right arm will become edematous.
Which term refers to the amount of blood pumped by the heart in one minute?
inotropic effect
stroke volume
cardiac output
Starling's law of the heart
What is the name of the valve that prevents backflow of blood into the right atrium when the right ventricle contracts?
mitral valve
semilunar valve
tricuspid valve
pulmonic valve
These conducting fibers rapidly spread the electrical signal throughout the ventricles.
bundle of His
SA node
Purkinje fibers
AV node
If the QRS complex does not develope.develop
the heart develops a sustained muscle contraction (tetanizes).
the ventricular myocardium does not contract.
the ventricles myocardium remains in systole and cannot relax.
all heart valves close
What is the origin of the electrical signal (cardiac impulse) in a patient in normal sinus rhythm (NSR)?
SA node
AV node
an atrial ectopic site
His-Purkinje system
Blood flows from the right ventricle to the left semilunar valve. Which structure is not in this blood path?
pulmonary veins
right atrium
bicuspid valve
left atrium
Which of the following term is not part of white blood cell?
Leucocyte.
Lymphocyte.
Erythrocyte.
Monocyte.
The blood group known as the ABO group is based on the presence of what on the red blood cell (RBC)?
Antibodies.
Agglutinins.
Antigens.
Immunoglobulins
The two types of hemopoietic tissue in an adult are:
Lymphatic tissue and white blood cell.
Platelets and lymphatic tissue.
Red bone marrow and lymphatic tissue.
Lymphocytes and monocytes
