Heart 1

Coronary arteries

Blood is supplied to the muscle of the heart through the:

Systemic circulation

Blood that is transported to and from all of the tissues of the body with the exception of the lungs is in the:

Cardiac arrhythmias

ECG analysis is especially useful in detecting:

Capillaries

Exchange vessels are:

Diaphragmatic surface

Externally the posterior & inferior portions of the left ventricle form the:

Covering the inner surfaces of the heart, including the valves

Functions of the endocardium include: 1) covering the inner surfaces of the heart, including the valves 2) covering the outer surface of the heart 3) forming the atria and ventricles of the heart 4) covering the interatrial septum 5) ALL OF THE ABOVE

the sympathetic component of the autonomic nervous system -AND- the parasympathetic component of the autonomic nervous system

Nodal activity of the heart may be influenced or modified by:

80-100 times per minute

Pacemaker cells depolarize about HOW many times per minute?

Pectinate muscles

Prominent muscular ridges that run along the inner surface of the auricle & across the adjacent atrial wall are the:

Start of ventricular contraction and the closing of the atrioventricular valves & the opening of the semilunar valves

The 1st heart sound, otherwise called the "lubb," signals (the):

Depolarization of the ventricles occurs

The QRS complex of the electrocardiogram occurs when:

Right coronary artery

The coronary artery found in the coronary sulcus is (the):

ALL OF THE ABOVE

The fibrous skeleton of the heart functions to: 1) maintain the shape of the heart 2) provide an anchor for the heart valves 3) help distribute the force of contraction of the heart 4) strengthen and help prevent overexpansion of the heart 5) ALL OF THE ABOVE

in the wall of the right atrium

The main pacemaker region of the heart is:

Systole

The phase of the cardiac cycle during which each chamber contracts & pushes blood into an adjacent chamber is:

Pericardium

The serous membrane lining the pericardial cavity is the:

Conus arteriosus

The superior end of the right ventricle near the pulmonary valve is called (the):

The amount of blood entering the right atrium of the heart would have been increased

What condition would be caused if the amount of blood entering the ascending aorta with each contraction of the heart were increased?

Anterior cardiac veins

Which of the following empties directly into the RIGHT ATRIUM? (anterior cardiac veins; great cardiac vein; small cardiac vein; middle cardiac vein; NOTA)

Atrioventricular-Aortic valve

Which of the following is an INCORRECT association? 1) Atrioventricular-aortic valve 2) Atrioventricular-mitral valve 3) Semilunar-pulmonary valve 4) Atrioventricular-tricupsid valve 5) NOTA