Parts, parts, and more parts
What are the 3 parts of the Cardiovascular system?
What are the heart, blood vessels, and blood.
The atria and ventricles are separated by which valves?
What are the semilunar valves, tricuspid and bicuspid (mitral) valves.
What are the cells in the heart that create their own electrical impulses?
What are the pacemaker cells.
What is the disease of the heart muscle that causes enlargement and weakening?
What is cardiomyopathy.
How big is the heart?
The heart weighs about 250-350 grams and is about the size of the patients fist.
Of the three layers of the walls of the heart, which one is the muscular layer?
What is the myocardium, or muscular layer (middle)
Which circulation loop takes deoxygenated blood through the lungs and returns oxygenated blood back to the heart?
What is the pulmonary circulation loop.
What is the hearts intrinsic pacemaker called?
What is the sinoatrial node. (SA)
What is caused by the lack of blood flow and oxygen to the heart?
What is a myocardial infarction. (MI)
What is the largest vein in the body?
What is the superior vena cava.
What are the three main coronary arteries?
What are the left anterior descending (LAD), circumflex, and the right coronary artery (RCA).
What chambers produce the greatest pressure in the heart?
What are the ventricles, to be able to pump the blood to the lungs and to the entire body.
What is the deviation from the normal pattern of impulse conduction and contraction of the heart called?
What is an arrhythmia.
What are symptoms of bradycardia?
What are HR <60bpm, weakness, fatigue, dizziness, syncope, chest pain, respiratory distress, palpitations.
Where do the great vessels attach to the heart?
What is the base. Which is actually the top of the heart.
What is the sac that surrounds the heart called?
What is the pericardial sac.
What does the systolic blood pressure represent?
What if the peak pressure on the walls of the arteries when the ventricles contract.
If the heart is fibrillating (quivering) is CPR enough to correct this?
What is definitely not, DEfibrillation is needed by an AED to stop the heart briefly so it can reset.
What is it called when the heart cannot pump enough blood to meet the needs of the body?
What is Congestive Heart Failure.
How much blood is typically pumped through the heart in a day?
What is 14,000 liters.
What are the 4 heart valves and what are their purpose?
What are the tricuspid, pulmonic, mitral, and aortic valves. They prevent the backflow of blood in the heart.
What does the systemic circulation loop do?
What is delivering oxygenated blood to the tissues and organs, then it returns relatively deoxygenated blood back to the heart.
What is it called when the electrical impulses between the atria and the ventricles do not talk to each other?
What is a 3rd degree or complete heart block.
When a wall of an artery weakens and begins to balloon out it is called?
What is an aneurysm.
What are the only arteries in the body that carry deoxygenated blood?
What are the pulmonary arteries.