PCA Chapter 16,24,25 Exam
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atria - Answer The two upper chambers of the heart
atrioventricular (AV) node - Answer The part of the cardiac conduction system between
the atria and the ventricles
bundle of His - Answer Specialized muscle fibers that conduct electrical impulses from
the AV node to the ventricular myocardium
diastole - Answer The relaxation of the chambers of the heart during which blood enters
the heart from the vascular system and the lungs
ectopic - Answer Originating outside the normal tissue
ischemia - Answer Decreased blood flow to a body part or organ, caused by constriction
or blockage of the supplying artery
myocardial - Answer Pertaining to the heart muscle
sinoatrial (SA) node - Answer The pacemaker of the heart; it is located in the right atrium
systole - Answer The contraction of the heart; blood is pumped from the heart to the
lungs and the rest of the body
ventricles - Answer The two lower chambers of the heart
hemoconcentration - Answer A condition in which the concentration of blood cells is
increased in proportion to the plasma.
hemolysis - Answer The destruction or dissolution of red blood cells, with subsequent
release of hemoglobin.
phlebotomy - Answer The practice of drawing blood.
plasma - Answer The liquid portion of whole blood that contains active clotting agents.
serum - Answer The liquid portion of whole blood that remains after the blood has
clotted.
stat - Answer The medical abbreviation for "immediately"; "at this moment".
thixotropic gel - Answer A material that appears to be a solid until subjected to a
disturbance, such as centrifugation, whereupon it becomes a liquid.
Latest Update
atria - Answer The two upper chambers of the heart
atrioventricular (AV) node - Answer The part of the cardiac conduction system between
the atria and the ventricles
bundle of His - Answer Specialized muscle fibers that conduct electrical impulses from
the AV node to the ventricular myocardium
diastole - Answer The relaxation of the chambers of the heart during which blood enters
the heart from the vascular system and the lungs
ectopic - Answer Originating outside the normal tissue
ischemia - Answer Decreased blood flow to a body part or organ, caused by constriction
or blockage of the supplying artery
myocardial - Answer Pertaining to the heart muscle
sinoatrial (SA) node - Answer The pacemaker of the heart; it is located in the right atrium
systole - Answer The contraction of the heart; blood is pumped from the heart to the
lungs and the rest of the body
ventricles - Answer The two lower chambers of the heart
hemoconcentration - Answer A condition in which the concentration of blood cells is
increased in proportion to the plasma.
hemolysis - Answer The destruction or dissolution of red blood cells, with subsequent
release of hemoglobin.
phlebotomy - Answer The practice of drawing blood.
plasma - Answer The liquid portion of whole blood that contains active clotting agents.
serum - Answer The liquid portion of whole blood that remains after the blood has
clotted.
stat - Answer The medical abbreviation for "immediately"; "at this moment".
thixotropic gel - Answer A material that appears to be a solid until subjected to a
disturbance, such as centrifugation, whereupon it becomes a liquid.
