the heart Flashcards
types of muscle that move blood
cardiac, smooth, skeletal
relationship between heart and lungs
lungs bring oxygen to blood and release carbon dioxide out of blood.
the heart pumps blood to lungs
pathway of blood in and out of heart
flows from body to right atrium then the right ventricle, to lungs, then to the left atrium and to the left ventricle and then is put back into body
arteries function and structure
thicker walls
more smooth muscle
capillaries
thin walls
exchange oxygen and carbon dioxide, nutrients, and waste
veins
not as thick walls
moves blood back to heart with valves
varicose veins
pooled, backed up blood
enlarged veins
why are there no varicose arteries
no valves
higher pressure
cardiac output
amount of blood/min
heartrate x stroke volume
how does cardiac output assess overall health?
it shows how hard your heart is working
Why take blood pressure?
see if your heart is working too hard/not enough
assess any blockage
diastolic
at rest
systolic
pumping and contracting
how does smoking cause periphrial artery disease?
creates blockages from toxins and body parts arent getting enough bloodq
where is your natural pace maker?
right atrium
