The Cardiovascular System Flashcards
What are the three layers of the heart?
Epicardium (outer layer)
Myocardium (middle, muscle layer)
Endocardium (inner layer, lines chambers of the heart)
The SVC and IVC are the ______ veins in the body?
Largest
What are the three blood elements?
Erythrocytes (RBC)
Leukocytes (WBC)
Thrombocytes (Platelets)
What do platelets do?
Initiate the clotting mechanism
What is plasma?
Liquid part of the blood
What are the three types of blood vessels?
Arteries
Veins
Capillaries
What are arteries?
Carry oxygenated blood from the heart
Have muscle tissue to expand and contract.
What are veins?
Return blood to the heart.
Muscle contractions help move blue blood back to the heart.
What are capillaries?
Blood vessels that connect the arterial and venous systems.
How is blood pressure recorded?
As a fractional number with a sphygmomanometer.
Systolic on top, contraction
Diastolic on bottom, when it relaxes.
How many blood types are there?
4
What are the 4 blood types?
A
B
AB (universal recipient)
O (universal donor)
What is a hematologist?
Blood specialist
What is thrombosis?
A clot
What is myocardial infraction?
Heart attack