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32 terms

heart/veins chap6

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Bicuspid/Mitral valve
Btwn. left atrium and Left ventricle. left side of heart
Left Smilunar/Aortic valve
Enterance to aorta left side of heart. Largest Artery
Layers of Blood Vessel
Tunica adventitia (external) outer layer. Tunica media middle layer. Tunica intima inner layer (interna)
(SA) node
sinoatrial node, initiates electric impulse,pacemaker
(AV) node
atrioventricular node, fibers relay impulses, bundle of his
Tricuspid Valve
btwn right atrium and right ventricle, right lower heart
empoism
obstruction of blood vessels by emolus
embolus
blood clot or undissolved matter circulating in bloodstream
phlebitis
inflamation of a vein
capillaries
one cell thick vessels form bridge btwn arterial and venous circulation
antecubital
area of arm anterior in front of and below elbow, several veins here, vein arrangements h and m
median cubital vein
near center of anticubital vein, first choice, usually larger, close to surface, staionary
Blood vessels
tube like expand and contract, arteries,veins,capillaries.
arterioles
smallest branches of arteries, join cappillaries
lumen
internal space of blood vessels where blood flows
great saphenous
longest vein in body
arteries
carry blood away from heart, thick walls, blood is under pressure, no bounce.
two divisions of circulation
pulmonary circulation: carries blood from right ventricle to lungs to remove carbon dioxide and pick up oxygen and returns oxygenated blood to left atrium. systemic circulation: serves the rest of the body carring oxygenated blood from left ventricle returns to right atrium with dirty blood.
pulmonary artery
only artery carries deoxygenated blood from heart to lungs
chambers of the heart
upper chamber: right and left atrium, recieves deoxygented blood. Lower chamber: right and left ventricle: pumps and delivers blood.
layers of the heart
Epicardium- outer, endocardium- inner, myocardium- middle
systal/disystal
contraction,relaxation
veins
return blood low in oxygen, thin walls, no pulse.
vena cava
largest vein in the body
circulatory system
The means by which oxygen and food are carried and the way carbond dioxide and waste are carried to excretory organs, kidneys, lungs, skin,coagulates blood, regulates body temp.
two parts of circulatory system
cardiovascular system: heart,blood,blood vessels, Lymphatic system: lymph,lymph vessels, nodes
Arrhythmias
bracardia- slow beats >60, tacacardia- fast beats <100, Extrasystole- extra beats, fibrillation- rapid uncoordinated beats.
pericardium
fluid filled sac that surrounds the heart
thrombus
blood clot
Basilic vein
vein located on medial aspect, inner side, of anticubital, last choice, easy to palpate, not well anchord, rolls, close to major artery.
Cephalic vein
located in lateral aspect of anticubital area, second choice, harder to palpate, fairly anchord
right semilunar/pulmonary valve
entrance to pulmonary artery, right upper heart