Cardiac anatomyby xayouluma

Pericardial Tamponade

• Bleeding into pericardial space after chest trauma

• Excess blood restricts expansion of heart during pumping

• Causes shock or death if not corrected

Heart Chambers

Four chambers:

• 2 atria: top of heart – receive blood from veins

• 2 ventricles: bottom of heart – pump blood through arteries

Nodes (you need to know these)

Valve Disorders

• Leaky Valves: caused by incompetent or deformed valves that force the heart to re-pump blood because of backflow

Stenosis Valves are stiff and do not open completely.

Heart has to pump harder

Murmur: stenosis

Mitral Valve Prolapse• The most common valve disorder

(5-10% of people)

• Mitral valve opens (prolapses) into atrium when shutting & allows blood backflow