Ch 8-10 Flashcards
GET AN A ON THIS F-ING FINAL
What body structure transfers oxygenated blood from the heart to the rest of the body
Arteries
what body structure transfers blood from the rest of the body back to the heart
Veins
what are leaflets
Flat, leaf shaped structures that comprise the valves of the heart and prevent the backflow of blood
what is lumen
Tubular space or Chenoweth an organ or structure of the body; space within an artery, vein, intestine, or tube
what is regurgitation
Backflow or rejecting of contents through an opening
What is vasoconstriction
Narrowing of the lumen of a blood vessel that limits blood flow, usually as a result of diseases, medication, or physiological processes
what is vasodilation
Widening of the lumen of a blood vessel caused by the relaxing of muscles of the vascular walls
what is viscosity
Thickness or a measure of how resistant a liquid is to flowing
what are the three major types of vessels
Artery
capillary
vein
What are the three layers that make up the walls of large arteries (in order)
Tunica externa
tunica media
tunica intima
what is the tunica externa made of
connective tissue
what is the tunica media made of
smooth muscle
What is the tunica intima made of
endothelial cells
what are capillaries
Microscopic vessels that join the arterial system with the venous system
what are the names of the small structures found within veins that prevent backflow of blood
valves
what are the names of the three layers of the pericardium (in order inner->outer)
endocardium
myocardium
epicardium
What are the names of the four chambers of the heart
Right atrium (RA) - upper
Left atrium (LA) - upper
Right ventricle (RV) - lower
Left ventricle (LV) - lower
What is the role of the right atrium
to collect deoxygenated blood from the rest of the body and move it to the right ventricle
What is the role of the left atrium
to collect oxygenated blood from the lungs and move it to the left ventricle
What is the role of the right ventricle
To pump blood to the lungs for oxygenation
what is the role of the left ventricle
To pump the oxygenated blood to the rest of the body
What veins bring deoxygenated blood to the right atrium
superior vena cava
inferior vena cava
What valve separates the right atrium and right ventricle
tricuspid valve
What arteries bring blood from the right ventricle to the lungs
left pulmonary artery
right pulmonary artery
What valve separates the right ventricle and the pulmonary arteries
pulmonic valve
What veins bring oxygenated blood from the lungs to the left atrium
right pulmonary veins
left pulmonary veins
Which valve separates the left atrium and the left ventricle
mitral (bicuspid) valve
Which valve separates the left ventricle and the aorta
aortic semilunar valve (aortic valve)
Which artery vascularizes the right side of the heart
the right coronary artery
which artery vascularizes the left side of the heart
the left coronary artery
What are the names of the two branches of the left coronary artery
Left anterior descending artery
circumflex artery
What is the other name for the sinoatrial (SA) node
pacemaker of the heart
what is the sequence of the four structures responsible for conduction of a contraction impulse in the heart
sinoatrial (SA) node
atrioventricular (AV) node
bundle of his
purkinje fibers
what is blood pressure (BP)
The force exerted by blood against the arterial walls during two phases of a heartbeat
What are the two phases of a heartbeat
the contraction phase (systole) when the blood is forced out of the heart
the relaxation phase (diastole) when the ventricles are filling with blood
What is systole
the contraction phase of a heartbeat
What is diastole
the relaxation phase of a heartbeat
what are the amount of force produced by systole and diastole
systole - maximum force
diastole - weakest force
what does a sphygmomanometer do
Measure blood pressure
what five factors influence blood pressure
Resistance of blood flow and blood vessels
pumping action of the heart
viscosity of blood
elasticity of arteries
quantity of blood in the vascular system
What does the CF “aneurysm/o” mean
aneurysm (widened blood vessel)
What is the CF for “aneurysm”
aneurysm/o
What does the CF “angi/o” mean
vessel (usuall blood or lymph)
What are the CFs for “vessel”
angi/o
vascul/o
What does the CF “vascul/o” mean
vessel (usually blood or lymph)
What does the CF “aort/o” mean
aorta
What is the CF for “aorta”
aort/o
What does the CF “arteri/o” mean
artery
What is the CF for “artery”
arteri/o
What does the CF “arteriol/o” mean
arterioles
What is the CF for “arterioles”
“arteriol/o”
What does the CF “atri/o” mean
atrium
What is the CF for “atrium”
atri/o
What does the CF “ather/o” mean
fatty plaque
What is the CF for “fatty plaque”
ather/o
What does the CF “electr/o” mean
electricity
What is the CF for “electricity”
electr/o
What does the CF “embol/o” mean
embolus (plug)