mayo
why is sad node known as pacemaker
starts up heartbeat
what is atrial flutter
abnormal rapid heartbeat
what agency determines who gets organs?
UNOS
what kind of doctor is a cardiologist
heart and bv specialist
what does brain death mean
identify the 2 functions for cerumen?
provides sticky trap for foreign bodies and repels insects
what are venules
small bv carrying deoxygenated blood away from capillaries
what is a sternotomy?
cutting thru breastbone
What equipment is used to measure heart rate? To measure blood pressure?
Stethescope and sphygmomanometer
Identify 2 causes of anemia
low RBC, abnormal hemoglobin in RBC
identify the 3 areas the ear is divided into
external, middle & internal
describe pulmonary circulation
conveys oxygen depleted blood from the right side of heart to lungs
What structures must be cut in order to remove the heart?
Aorta, Pulmonary artery, superior and inferior vena cava
What is atrial flutter?
abnormal rapid heart rythm
explain systemic circulation
carries 02 rich blood from left side to body tissues
identify 3 layers of the heart wall.
outer epicardium, myocardium & innermost endocardium
define isovolumetric
same volume measurement
Why are immunosuppressants needed after a transplant?
long recovery
why is electrical impulse delayed in step 2?
b/c atria must finish contracting
why do we have heart valves?
keep from going backwards
what percent of the formed elements are a) erythrocytes b)leukocytes
a) 9% b) 0.6-1%
define atrial diastole
heart completely relaxed due to less pressure. blood flows passively thru atria into ventricles
what is a perfusion system
specialized organ transport system that preserves the heart by keeping it perfused with oxygenated blood
Why cant someone with B receive from AB?
Antibodies
Identify 2 things that provide force to move blood around body
pump blood, blood psi