unit 3 idek anymore
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what percentage of the blood is plasma
55%
what are the substances dissolved in the water of plasma
proteins/hormones, gases, nutrients
what is the main function of erythrocytes
red blood cells. carry oxygen and carbon dioxide
what is the main function of leukocytes
white blood cells. fight infection
what is the main function of thrombocytes
platelets. clotting cells.
small veins that connect the capillaries to the large veins of the body
venules
fatty deposits inside the coronary arteries cause a condition known by what two names
coronary artery disease, ateriosclerosis
complete blockage of coronary vessels leads to
heart attacks
loose fatty plaque may result in the formation of a clot called a
thrombus
when a thrombus dislodges and moves to another location in the body it is
an embolism
when a clot blocks a coronary artery and the heart muscle becomes hungry for oxygen it is called
ischemia
does lack of oxygen to heart issue immediately cause permanent damage
no, this will not occur until the injury stage
chest pain that is a result of the heart being starved for oxygen is called
angina
why is chest pain more common when the patient is exercising or under stress
the heart is forced to work harder and the diastolic stage is shortened so chambers have less time to fill
permanent damage to the heart muscle
infarction
the amount of blood the heart can pump is called
cardiac output