Pulmonary Stsyem And Excercise Flashcards
Terminal air sacs in the lungs that are surrounded by capillaries where gas exchanges occur.
Alevoli
Movement of blood through the pulmonary circulation
Pulmonary perfusion
Chemicals produced during metabolism that releases a hydrogen ion
Metabolic acids
Number of breaths a person takes per minute
Breathing frequency
Distressed breathing pattern
Also called dyspnea
Shortness of breath
Heart pain associated with the heart muscle not getting enough oxygen
Angina
Two chambers found on the top of the heart that pump blood to the ventricles
Atria
Two chambers found on the bottom of the heart that pump blood to the lungs and general circulation
Ventricles
Blood vessels that supply oxygenated blood to the tissues
Arteries
Small vessels lying between arteries and veins that deliver oxygen and fuels to the tissues and remove carbon dioxide and waste
Capillaries
Increase in the internal diameter of the blood vessel that increases blood flow
Vasodilation
Decrease in the internal diameter of the blood vessels that decreases blood flow
Vasoconstriction
Process that maintain body temperature at a relatively constant levels
Temperature regulation
Adrenal hormone that increases systemic vascular resistance and improves coronary and cerebral blood flow
Epinephrine
Amount the heart pumps per minute. It is determined by stroke volume and heart rate
Cardiac output
Refers to the internal organs
Visceral
Active or pumping phase of the cardiac cycle
Systolic
Relaxation phase of the cardiac cycle
Diastolic
Highest rate the heart can reach - usually during exercise - in one minute
Maximum heart rate
Tendency for heart rate to increase gradually with time during exercise
Cardiovascular drift
Non-cellular part of blood
Plasma volume
Signals sent from the sympathetic nervous system to the blood vessels that keep them partially closed at rest or sub maximal exercise
Sympathetic tone
Movement of air in and out of the lungs
Ventilation
