What is the primary cause of irreversible damage in heart muscle during a myocardial infarction?

• Increased heart rate

• High blood pressure

• Lack of oxygen

• Excessive blood flow

What term describes the preservation of cell architecture after cell death in myocardial infarction?

• Fibrosis

• Apoptosis

• Coagulative necrosis

• Inflammation

Which type of white blood cells are the first to respond to clean up dead muscle cells after a heart attack?

• Eosinophils

• Lymphocytes

• Basophils

• Neutrophils

What is the main role of macrophages during the healing process after a myocardial infarction?

• To cause further cell death

• To form scar tissue

• To clean up necrotic debris

• To increase blood flow

During which phase is the heart most at risk of rupture after a myocardial infarction?

• 1-3 days

• 4-7 days

• 7-10 days

• 10-14 days

What is the term for the new tissue formed by fibroblasts and new blood vessels during heart healing?

• Scar tissue

• Granulation tissue

• Fibrous tissue

• Epithelial tissue

What type of collagen replaces granulation tissue to form scar tissue in the heart?

• Type II collagen

• Type III collagen

• Type I collagen

• Type IV collagen

How does scar tissue in the heart affect its function?

• Increases contractility

• Prevents heart failure

• Decreases contractility

• Improves blood flow

What psychological effect might a patient experience after a heart attack?

• Improved memory

• Heightened senses

• Depression

• Increased energy

How might a heart attack affect the patient's family and friends?

• They gain medical knowledge

• They become physically stronger

• They experience psychological effects

• They become more independent