17 Flashcards
(40 cards)
Atrium
Upper chamber
Ventricle
Lower chamber
Aorta
Receives blood from left venteicle
Autonomic Nervous System (ANS)
Controls involuntary activities
-heart rate, blood pressure, digestion of food
Sympathetic Nervous System
Controls active function to fear
-fight or flight
Parasympathetic Nervous System
Relaxation and recovery
- rest and digest
Coronary Arteries
Blood vessels that supply blood to myocardium
Aortic Valve
Main artery carrying blood to the body.
-It regulates blood flow from the heart to the body, opening to allow blood to leave and closing to prevent backflow.
Cadiac Output
of blood that passes through heart in 1 min
-Heart rate x Stroke volume= CO
Atherosclerosis
The build-up of fats + cholesterol in and on the artery walls.
-A build up of cholesterol plaque in the walls of arteries causing obstruction of blood flow.
Occlusion
Blockage of coronary arteries
Lumen
Space or cavity within a blood vessel through which blood flows
Ischemia
Heart muscle is not receiving enough blood, oxygen, and nutrients
Thromboembolism
Blood clot floaring through blood vessels
Infarction
Death of tissue
Acute Coronary Syndrome (ACS)
Group of conditions where there is a sudden reduction or blockage of blood flow to the heart muscle
Angina Pectoris
Chest pain or discomfort, caused by reduced blood flow to myocardium
Acute Myocardium Infarction
A blockage of blood flow to the heart muscle.
AMI signs and symptoms
-Chest pain
-Pain that spreads to the shoulder, arm, back, neck, jaw, teeth or sometimes the upper belly.
-Cold sweat.
-Fatigue.
-Heartburn or indigestion.
-Lightheadedness or sudden dizziness.
-Nausea.
-Shortness of breath.
Syncope
Temporary loss of consciousness
3 AMI signs differ from angina
- Can occur at any time- even sleeping
- 30 mins- several hours
- May or may not be relieved by rest/nitro
Consequences of AMI
- Sudden death
- Cardiogenic shock
- Congestive heart failure
Ventricular Dysrhythimia
Abnormal heart beat
Ventricular Fribrillation
Rapidly and irregular ventricle movemenf instead of pumping blood effectively