1
Largest artery in the body
Aorta
One of two upper chambers of the heart
atrium or atria
Beat of the heart as felt through the walls of the arteries
Pulse
Largest vein in the body. The superior and inferior aspects return blood to the right atrium of the heart
Vena Cava
One of two lower chambers of the heart
Ventricle
Inner lining of the heart
Endocardium
Gas waste released by body cells, transported via veins to the heart and then to the lungs for exhalation
Carbon dioxide or CO2
Muscular middle layer of the heart
Myocardium
Gas that enters the blood through the lungs and travels to the heart to be pumped via arteries to all body cells
Oxygen
Double-layered membrane surrounding the heart
Pericardium
Blood that is oxygen poor is called?
Deoxygenated blood
Heart rhythm originating in the SA node with a rate of 60-100 bpm at rest
Normal sinus rhythm
Relaxation phase of the heartbeat
Diastole
Blood vessels that branch from the aorta and carry oxygen-rich blood to the heart muscle
Coronary arteries
Contraction phase of the heartbeat
Systole
The lower tip of the heart is called?
Apex or Apex of the heart
One of two pairs of vessels carrying oxygenated blood from the lung to the left atrium of the heart?
Pulmonary vein
Two common arteries located on each side of the neck, branch from the aorta and provide blood to the head, neck, and brain
The valve positioned between the right ventricle and the pulmonary artery
Pulmonary valve
This artery carries oxygen-poor blood from the heart to the lungs?
Pulmonary artery
The valve between the left atrium and the left ventricle. Also known as the bicuspid valve
Mitral Valve
Specialized tissue in the wall between the atria that sends electrical impulses to the bundle of His toward the ventricles?
Atrioventricular node or AV node
Specialized muscle fibers connecting the atria with the ventricles and transmitting electrical impulses between them
Atrioventricular bundle or bundle of His
Specialized nervous tissue in the right atrium that begins the heartbeat
The valve located between the right atrium and right ventricle; has three leaflets or cusps
Tricuspid valve