Cardiac
define tachycardia
fast heart rate, >100 bpm
do veins travel toward the heart or away from the heart?
towards the heart
the walls of arteries are thicker than those of veins, why?
the large amount of pressure in arteries since its being pumped by the left ventricle to reach the distal areas of the body.
what is the purpose of the lymphatic system?
fight infection and return plasma that has leaked from vessels back to systemic circulation
define antigen
anything that causes an immune response
what does an ekg detect?
the electrical signal through the heart
what is a thrombus?
blood clot
arteriosclerosis causes blood vessel damage and causes vessels to lose their elasticity, what effect would this have on blood pressure
it would cause an increase in blood pressure because it decrease vessel compliance
what causes return of lymph to systemic circulation since there is no pump
respirations, muscles
define antibody
the bodies defense against a know antigen
atrial fibrillation is an example of what?
an arrhythmia or irregular heart beat
what are the smallest veins and arteries called?
venules and arterioles
this is the term for a connect of two vessels or any two tubes
anastomosis
macrophage translates literally to?
"big eater"
innate
what is happening during an myocardial infarction aka heart attack
which vessels contain valves to prevent backflow of blood?
veins
smooth endothelium in our vessels helps to prevent this
blood clotting
what are so many lymph nodes found in the gut and near portals of entry?
to prevent infection in these areas that are more likely to be dirty
what are the types of acquired immunity
passive and active
describe the path of electrical signal through the heart
SA--> AV--> bundle of his-->bundle branches--> purkinje fibers
how does oxygen pass through from the blood to the tissues?
diffusion
albumin is the most abundant protein found in the plasma, why is it so important here?
it provides colloid osmotic pressure
lymphedema is a problem with what?
leaky vessels and lymphatic return
which type of immunity has memory
adaptive