Cardio Emergencies A&P 2 Flashcards
connect arterioles to venules.
Capillaries
are the smallest branches of the veins.
Venules
return blood to the heart.
Vena cavae
from the head and arms
Superior vena cava
from the abdomen, kidneys, and legs
Inferior vena cava
carry oxygen
Red blood cells
fight infection
White blood cells
help blood to clot
Platelets
the fluid cells float in
Plasma
the pressure of circulating blood against artery walls
Blood pressure
The max pressure generated by left ventricle
Systolic blood pressure
The pressure while the left ventricle is at rest
Diastolic blood pressure
is felt when blood passes through an artery during systole
A pulse
felt in the extremities
Peripheral pulses
felt near the body’s trunk
Central pulses
the volume of blood that passes through the heart in 1 min.
Cardiac output
Heart rate × volume of blood ejected with each contraction
Stroke Volume
the constant flow of oxygenated blood to tissues
Perfusion
A well-functioning heart
Good perfusion requires
an adequate volume of blood
Good perfusion requires
appropriately constricted blood vessels
Good perfusion requires
Cellular and patient death occur
If perfusion fails
