More questions timed 1 hour

The outer portion of the pericardium is the
 A.parietal pericardium.
 B.fibrous pericardium.
 C.epicardium.
 D.serous pericardium.

The left ventricle pumps the blood into the
 A.ascending aorta.
 B.pulmonary vein.
 C.descending aorta.
 D.pulmonary trunk.

Atrial repolarization is indicated by the
 A.P wave.
 B.QRS wave.
 C.T wave.
 D.None of the above.
The layer of simple squamous epithelium that lines the inside of the myocardium is called
 A.serous pericardium.
 B.endocardium.
 C.epicardium.
 D.parietal pericardium.
The normal pacemaker of the heart is/are the
 A.bundle of His.
 B.sinoatrial node.
 C.Purkinje fibers.
 D.atrioventricular node.
The pulse is a direct reflection of the

 A.cardiac output.
 B.heart rate.
 C.venous return.
 D.blood pressure.


Within the cardiovascular system, blood only flows from regions of higher pressure to regions of lower pressure.
 True
 False

The diastolic blood pressure
 A.indicates the cardiac output.
 B.indicates the force of ventricular contraction.
 C.is normally higher than the systolic blood pressure.
 D.is usually lower in people who exercise regularly and are in good physical shape.

Venous return to the heart occurs due to pressure created by
 A.contraction of the heart.
 B.skeletal muscle pump.
 C.respiratory pump.
 D.all the above.

The smallest diameter blood vessels are
 A.venules.
 B.arterioles.
 C.capillaries.
 D.arteries.