Ch 19-20 Test Flashcards
which blood vessel returns blood to the heart
veins
what’s the purpose of valves
prevent blood from flowing backward
these are smaller vessels taking blood to the heart
venules
this vessel brings blood back to the heart from the upper portion of the body
superior vena cava
this is the pacemaker of the heart
SA node
this portion of the conduction system of the heart has a slight pause before continuing the impulse
AV node
which blood vessel is built for exchange of materials
capillaries
which part of an EKG indicates ventricular repolarization
T wave
layer of a blood vessel that helps with reducing friction for blood
tunica intima
which is most indicative of a healthy blood pressure?
- 140/85 mm Hg
- 110/50 mm Hg
- 140/70 mm Hg
- 110/70 mm Hg
110/70 mm Hg
blood enters the aorta from which chamber
left ventricle
membrane layer found directly on top of the heart
visceral pericardium
which number is most likely indicative of high diastolic pressure?
110
after returning from the lungs through the pulmonary veins, blood enters what chamber?
left atrium
blood enters the aorta from which chamber
left ventricle
this blood vessel is associated with the left ventricle
aorta
valve between right ventricle and pulmonary trunk
pulmonary SL
which blood vessel is built for exchange of materials
capillaries
layer of a blood vessel that helps with protecting the interior layers
tunica externa
which pathway would be found in the systemic circuit
left ventricle, aorta, superior and inferior vena cava
part of the heart allowing for attachment
base
