Ch 10 & 11 PP Terms Flashcards
(32 cards)
cardiovascular system
heart and vessels, circulates blood and o2 to body, carries away waste
endocardium
inside lining, lines chambers and valves
myocardium
thick muscular layer that makes up the heart wall
epicardium
outside thin lining, covers heart
pericardium
surrounding fibrous sac
systole
contraction of heart
diastole
relaxation of heart
heart rate
number of times the heart contracts per minute
pulse
wave of pressure as heart contracts
ECG waveforms
p wave, QRS, t wave, u wave
blood pressure
force of blood against arterial walls as heart contracts and rests
atherosclerosis
fatty deposits in artery
thrombosis
blood clot
embolism
blockage of or mass carried into blood stream
CVA (cerebrovascular accident/stroke)
embolus or thrombus from artery blocks vessel in brain
hypertension
high BP, systolic > 140 diastolic > 90
CAD (coronary artery disease)
result of atherosclerosis in vessels that supply blood to the heart
myocardial infarction (MI)
heart attack
lymphatic system
returns excess fluid and proteins from tissues to bloodstream to protect the body
blood
fluid that circulates through vessels
blood plasma
yellow part of blodd remaining after BCs have been removed, 90% water, pH of 7.4
erythrocytes
RBC, carry oxygen, most common, require constant replacement
leukocytes
WBC, fight fbs, 5 types
thrombocytes
platelets, clotting factors