The Heart is a muscular organ that is situated in the ____
What is the mediastinum
100
The pressure against the wall of the arteries during the contraction phase of the heart:
What is the systolic blood pressure
100
Returns venous blood from the head, neck, and upper limbs:
What is the superior vena cava
100
The right atrium consists of the pacemaker known as ____
What is the sinoatrial node or the SA node
100
The right atrium receives what type of blood?
What is oxygen poor or oxygenated blood
200
The heart is made up of four chambers which are
What are the atria and ventricles
200
Faster heart beat which originates from the sinus node.
What is sinus tachycardia
200
The inferior vena cava returns blood from:
What is the lower parts of the body.
200
The node present at the boundaries between the atria and ventricle that conducts the impulses to the ventricles is:
What is the atrial-ventricular node or the AV node
200
In the lungs, the ________________ blood is oxygenated:
What is the venous blood
300
Blockage of electrical impulse from one part to another within the heart:
What is heart block
300
From the right ventricle, the _________________ artery arises:
What is the pulmonary artery
300
The ability to initiate a heart beat continuously and regularly without external stimulation:
What is autorhythmicity
300
The left atrium receives oxygenated blood from the lungs through:
What are the pulmonary veins
400
Blood from the left atrium enters the left ventricle through the:
What is the bicuspid valve or the mitral valve
400
Reduced oxygen level in tissues and cells of the body:
What is hypoxia
400
A person with a heart rate of 72 and SV of 70 will have a cardiac out of ____________ml/min
What is 5040 ml/min
400
The ability to contract in response to stimulation:
What is contractility
400
Is otherwise known as greater circulation:
What is systemic circulation
500
The right atrioventricular valve is known as the ___________ valve:
What is the tricuspid valve
500
The outermost layer of the cardiac wall:
What is the epicardium
500
Is a blood vessel which carries deoxygenated blood:
What is a vein
500
Explains that the increased volume of blood within the ventricles during diastole will cause an increase in the intensity of the stretches within the ventricular wall resulting in a more forceful ventricular contraction.
What is the Frank-Starling Law
500
Is the amount of blood pumped out of each ventricle during each beat: