biomed unit 4 test
which structure is the pacemaker of the heart? a. SA node b. right ventricle c. right atrium d. AV node
a. SA node
what is the term used for a sudden loss of conciousness, sensation, and voluntary motion caused by a blood clot in the brain? a. a stroke b. myocardial infarction c. angina d. thrombosis
a. a stroke
what is the term for a procedure that uses a tiny balloon to open a blood vessel? a. angioplasty b. stent insertion c. angiogram d. coronary bypass
a. angioplasty
which of the following is a measure of the push of blood against the blood vessels? a. blood pressure b. heart rate c. electrocardiogram (EKG) d. biopsy
a. blood pressure
what is the effect of narrowed arteries on a person's blood flow and blood pressure? a. decreased flow and increased pressure b. decreased flow and decreased pressure c. increased flow and increased pressure d. increased flow and decreased pressure
a. decreased flow and increased pressure
which of the following measures the pressure of blood on the artery walls when the heart is relaxed? a. systolic pressure b. diastolic pressure c. gel electrophoresis d. angiogram
a. systolic pressure
which of the following measures the pressure of blood on the artery walls when the heart is pumping? a. systolic pressure b. diastolic pressure c. gel electrophoresis d. angiogram
b. diastolic pressure
which of the following measure the number of times the heart beats per miute? a. blood pressure b. heart rate c. electrocardiogram (EKG) d. biopsy
b. heart rate
which of the following associations is correct? a. high HDL: high risk of heart disease b. high LDL: high risk of heart disease c. low HDL: low risk of heart disease d. low LDL: low risk of heart disease
b. high LDL: high risk of heart disease
what is the medical term for a heart attack? a. a stroke b. myocardial infarction c. angina d. thrombosis
b. myocardial infarction
in the EKG, the P-wave is completely absent. What does this indicate? a. the ventricles are not contracting b. the atria are not contracting c. the SA node is misfiring d. the ventricle are contracting
b. the atria are not contracting
what is the desirable cholesterol level?
below 200
which of the following is a measure of the electrical activity in the heart? a. blood pressure b. heart rate c. electrocardiogram (EKG) d. biopsy
c. electrocardiogram (EKG)
which of the following procedures is not used to treat a blocked or narrowed blood vessel? a. angioplasty b. stent insertion c. mitral valve replacement d. coronary bypass
c. mitral valve replacement
which type of blood vessel carries blood toward the heart? a. capillary b. atrium c. vein d. artery
c. vein
how do veins compare to arteries? a. veins carry faster moving blood b. veins have more smooth muscle c. veins have thinner walls d. veins experience more pressure
c. veins have thinner walls
which type of blood vessel carries blood away from the heart? a. capillary b. atrium c. vein d. artery
d. artery
what is the term for a procedure that creates an alternate pathway for the blood around a blocked artery? a. angioplasty b. stent insertion c. angiogram d. coronary bypass
d. coronary bypass
which of the following increases the risk for heart disease? a. smoking b. diabetes c. family history d. abdominal obesity e. all of the above
e. all of the above c
where is a graft artery attached to?
the aorta
