Cardiovascular and respiratory system Flashcards
which side of the heart is bigger and why?
the left side is bigger, it supplies blood to the rest of the body.
the right side pumps blood back to the lungs.
what are the thick walls that the heart is made up of called?
myocardium
the walls of the heart is wrapped around by al layered sac called?
pericardium
what are the two types of valves in the heart and what are their roles?
Atrioventricular valve: prevent the backflow of blood from the ventricles to the atria.
Semilunar Valves: prevents backflow of blood into the right and left ventricle
when the heart’s chambers alternatively contract, what is this known as
cardiac cycle
the contraction phase and relaxation phase of the cardiac cycle is?
systole and diastole
what is the amount of blood pumped out the ventricle in one minute known as?
cardiac output
what is the amount of blood pumped by the hearty per beat known as?
stroke volume
what is another name for a pacemaker?
sinoatrial node
what is bradycardia
heart rate of 60 beats or less per minute
is 100/60 mmHg considered low, normal or high blood pressure?
low
what four factors are short term increases to blood pressure?
anger, fear, excitement and exercise
what three poor lifestyle choices can affect blood pressure?
poor diet, smoking and excessive drinking
for someone with high blood pressure, should you do an aerobic or anaerobic workout? give examples of workouts that should be done
aerobic e.g swimming, jogging, walking
what are the two paths that the cardiovascular system is made of? what side of the body do they begin?
pulmonary circulation: right side
systemic circulation: left side
