Cardiovascular And Respiritory Flashcards
What is a vascular shunt?
Redistribution of blood
What is vascular dilating
Blood vessels increase in size to allow more blood through
What is vascular constricting
Blood vessels Decreasing in size to limit amount of blood passing theough
What is tidal volume
Volume of air inspired or expired per breath
What is breathing rate
Number of breaths per minute
What is minute ventilation
The volume of air a person breathes out in a minute
What is the formula for minute ventilation
Breathing rate x tidal volume
Where does gaseous exchange take place?
Alveoli
Describe the pathway of oxygen in inspiration
Mouth
Trachea
Bronchi
Bronchioles
Alveoli
What is a diastole
Heart fills with blood (relaxes)
What is a systole
Heart ejects blood (contracting)
What is the pressure like in an artery
High
How thick r artery walls
Thick-muscular
What is the pressure like in a vein
Low
What do veins contain to stop backflow of blood
Valves
What is the muscle around and inside the lungs?
External and intercostal
What is the equation for aerobic excercise
Glucose + oxygen=co2 + energy +water
What is the equation of anaerobic respiration
Glucose = energy + lactic acid
What is the duration for aerobic excercise like
Long
Where is the atrium
Top chambers
What is a double circulatory system
consists of a pulmonary circuit which pumps blood from the right ventricle to be oxygenated at the lungs, and a systemic circuit which pumps blood from heart tp rest of body
What is stroke volume
Volume of blood pumped out the the left ventricle each contraction
What is the cardiac equation
Stroke volume x heart rate = cardiac output
What does aerobic excercise use
Oxygen
