The Cardiovascular System Flashcards
Name the phase of the cardiac cycle where blood exits the ventricles
Systole
What describes the length- tension relationship of cardiac muscle cells
Frank-Starling Law
Which circulation does the left side of the heart supply
Systematic
Which part of the circulation does the right side of the heart supply
Pulmonary
Which chamber of the heart receives oxygenated blood from the pulmonary veins
Left atrium
Give the equation of cardiac output
Cardiac Output (L)= Stroke Volume (mL) X Heart Rate (beats/min)
What function does the SAN perform
Provides a natural pacemaker for the heart
Which of these is the most accurate description of afterload
The pressure in the aorta or pulmonary artery the ventricles must overcome
What happens to the left ventricle as a result of long-term exercise
Hypertrophy
Blood flow is said to be either…
Turbulent or Laminar
Turbulent blood flow is most likely to occur in
Arteries
What is the name of the specialist cells that line the blood vessel intima
Endothelial
In Poiseuilles law, what is the main factor that brings about changes in blood flow
Vessel radius
What is the name of the artery that supplies the head and brain with oxygen
Carotid
What feature of arteries enable them to cope with higher pressures they experience
A thicker tunica media
