A&P
It is the main organ of the cardiovascular system
The heart
It allows a cardiac muscle cell to contract spontaneously without stimulus from a nerve source
Automaticity
What are the vessels that feed deoxygenated blood to the right atrium?
The superior vena cava, and the inferior vena cava
Ventricles
Lower chambers of the heart under high pressure
Thromboembolism
A blood clot that flows through blood vessels until it reaches an area to narrow for it to pass, causing it to stop or block the blood flow at that point
It brings deoxygenated blood from the lower body to the heart
Inferior vena cava
Known as the pacemaker cells, it has a natural rhythm of 60 to 100 bpm
Sinoatrial node
The right ventricle sends blood into which vessel
The pulmonary artery
Myocardium
The heart muscle
Name three controllable factors associated with an MI
Cigarette smoking, hypertension, diabetes, elevated, cholesterol levels, lack of exercise, obesity
It receives oxygenated blood from the lungs
The left atrium
The autonomic nervous system is made up of which two parts
Sympathetic nervous system, also known as fight or flight system, and the parasympathetic nervous system also known as rest and digest
What is the largest artery in the body?
The aorta
Cardiac output
A measure of the volume of blood circulated by the heart in one minute, calculated by multiplying the stroke volume by the heart rate
Transient or short-lived chest discomfort caused by partial or temporary blockage of blood flow to the heart muscle
Angina pectoris
It prevents blood from flowing back into the right ventricle
The pulmonary semilunar valve
Which chamber does the SA node reside?
Right atrium
What is the first thing to receive oxygenated blood from the heart?
The heart itself via the coronary arteries
Ischemia
A lack of oxygen depriving tissues of necessary nutrients, resulting from partial or complete blockage of the heart flow part, potentially reversible because permanent injury has not yet occured
Five symptoms or signs of an MI
Weakness, nausea, vomiting, chest, pain, discomfort, or pressure, radiating pain to the lower jaw, arm, back, abdomen, or neck. Syncope, dyspnea.cardiac arrest.
Name all four heart chambers and the heart valves that separate them
Right atrium left atrium and the tricuspid valve
Left atrium and right atrium the bicuspid valve or mitral valve
Name the pathway of the electrical system in the heart in order
Sinoatrial node, atrioventricle node, bundle of His, left bundle branch/right bundle branch, purkinje fibers
Name the complete pathway of the blood through the heart
Inferior vena cava/superior vena cava- Right atrium- trichosis valve- right ventricle- pulmonic valve- main pulmonary artery- left and right pulmonary artery- lungs- left and right pulmonary vein- left atrium- mitral valve- left ventricle- aortic valve- aorta- the body
Atherosclerosis
A disorder in which cholesterol and calcium buildup inside the walls of blood vessels eventually leading to partial or complete blockage of blood flow
Disorganized, ineffective, quivering of the ventricles, resulting in no blood flow and a state of cardiac arrest
Ventricular fibrillation