Unit 8 Cardio Vascular System Flashcards
Intermittent Circulation
Cramping pain in the muscles brought on by exercise in calves of the legs, but can also affect the muscles of the thigh and buttock.
Intermittent Claudication
Pain when walking that diminishes at rest.
Heart Failure
Congestion and increased pressure either right or left sided.
Congestion develops with the heart is unable to move the amount of blood it receives efficiently through the system due to weak heart muscles or narrow or constricted vessels.
Angina Pectoris
Chest Pain
Occurs when blood supply to the heart is decreased or totally obstructed.
Stable Angina
Chest pain that occurs with activity or emotional stress. Angina is due to poor blood flow through the blood vessels in the heart.
Vasoconstriction
Increased blood pressure due to narrowing of blood vessels.
Vasodilation
Widening of blood vessels. Result of smooth muscle cell relaxation within the vessel walls.
Venous Insufficiency
Is a problem with the flow of bloody from the veins of the legs back to the heart.
Paroxysmal Nocturnal Dyspnea
An attack of severs shortness of breath and coughing. Generally at night
Anemia
Condition in which you lack enough healthy red blood cells to carry adequate o2 to the body’s tissues.
Cardiac Cycle Contraction
At beginning of systole the ventricles contract. Increases BP in ventricles forces the AV valves to close and semi lumbar valves to open
Cardiac Cycle Relaxation
When ventricles empty and relax, ventricles pressure falls below the pulmonary artery and the aorta.
Cardio Output
Refers to the amount of blood in heart pumps in 1 minute.
Stroke Volume
The amount of blood ejected with each heart beat.
Three Methods of Circulation in the Body
1) Pulmonary
2) Systemic
3) Coronary
