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CVS CCC PN105
Circulatory System/Cardiovascular System A&P
Question | Answer |
---|---|
mainstains bloodflow during cardiac arrest | CPR |
upper chambers, receive blood | RL atria |
lower chambers, discharge blood | RL ventricles |
cardiac muscle | myocardium |
lines heart chambers | endocardium |
2 layered fibrous sac with lubricated space between layers | pericardium |
inner layer of pericardium | visceral pericardium |
outer layer of pericardium | pareital pericardium |
systole | contraction of heart (first sound) |
diastole | relaxation of heart (2nd sound) |
valves | keep blood flowing and prevent back flow |
AV valves (atrioventricular) | tricuspid and bicuspid (mitral) |
SL valves (semilunar) | pulmonary and aortic |
O2 poor blood is on ____ side | right side |
O2 rich blood is on _____ side | left side |
chest pain due to inadequate O2 to heart | angina pectoris |
AV bundle is also known as _____ | Bundle of His |
inpulses run in this order | SA node/AV node/AV bundle/Purkinje fibers |
types of blood vessels | arteries, veins, capillaries |
these distribute nutrients and carry blood away from the heart at a high pressure | arteries |
these move blood to the heart at a low pressure | veins |
these exchange vessels carry blood from arteriols to venules | capillaries |
systemic circulation | carries blood throughout the body |
pulmonary circulation | carries blood to/from the lungs for gas exchange |
hepatic portal circulation | unique path of blood through the liver to be filtered and redistributed |
factors that influence BP | blood volume, contraction strength, blood viscosity, flow resistance |
120/80 | average BP |
expansion and recoil of blood vessel wall | pulse |