Cardiovascular Quiz Flashcards
Cardiac arrhythmias
Irregular heart beat
Tach>100
Brady
Heart fibrillation
When different fibers contract at different times
Heart flutter
Similar to fibrillation; not able to build pressure
Ischemia
Decline of blood supply to the heart
Heart murmur
Leaky valve
Myocarditis
Infection to the heart muscle
Stenosis
Congenital defect; narrowing of the valves
Myocardial infarction
Heart attack; death of myocardial tissue
Angina pectoris
Chest pain due to a lack if oxygen/nutrient to he heart
Portal circulation
Transportation of nutrients through the portal vein from the capillaries of the intestine to the liver instead of directly to the heart
Heart sounds
Clicking of the valves
Heart rate
Number of cardiac cycles per minute
Stroke volume
Measurement of blood leaving the ventricles during a contraction
Cardiac output
Heart rate plus stroke volume
3 bypasses
Ductus venosus- bypass liver
Foramen ovale- bypasses right ventricle
Ductus ateriosus- bypasses lungs
Bundle of His
Connects AV node to purkinje fibers
Purkinje fibers
carry contraction impulses to myocardium of ventricles
Sinoatrial node
controls the heart rate by sending impulses through the heart
Atrioventricular Node
Recieves impulses from SA node and regulates them
What can cause the heart strength and beat to increase
- hormones
- chemicals
- nerve impulses
QRS complex
ventrical contraction/polarization
T wave
ventricles rest
P wave
Atrial contraction
