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What is the main function of platelets?
Blood clotting
What blood type is the universal recipient?
AB
What is the process of stopping bleeding called?
Hemostasis
What are the four chambers of the heart?
Right atrium
Right ventricle
Left atrium
Left ventricle
What are the three main steps of hemostasis?
Vasoconstriction
Platelet plug formation
Fibrin clot formation
Which heart chamber has the thickest muscle wall?
Left ventricle
Blood type is determined by the presence of what on red blood cells?
Antigens
What is the difference between the pulmonary circuit and systemic circuit?
Pulmonary circuit: heart → lungs → heart (oxygenates blood)
Systemic circuit: heart → body → heart (delivers oxygen to tissues)
What blood type is the universal donor?
o
What is a myocardial infarction, and what causes it?
A myocardial infarction (heart attack) occurs when a coronary artery becomes blocked, preventing oxygen from reaching heart muscle tissue, causing tissue damage or death.