AP2 Quiz questions
The WBC that releases granules that kill parasitic worms
eosinophils
The most abundant formed elements in the blood
erythrocytes
A heart murmur occurs when there is a defect in _____.
heart valve
Loss of fibrinogen within the plasma would most likely cause ______.
loss of blood clotting
What is the most common WBC that kills bacteria by respiratory burst of bleach and peroxide?
neutrophils
What is the average normal pH range of blood?
7.35-7.45
Stroke volume determined by
preload, contractility, afterload
The reduction in the number of oxygen binding sites on hemoglobin would result in ______.
Anemia
What happens between P-Q?
Atrial systole
What WBC is responsible for allergic reactions and produce histamine?
Basophils
The class of protein involved in clotting is
Fibrinogens
The ______ produces erythropoietin when cells become hypoxic
Kidneys
A cell that is slightly larger than a RBC, contains a large nucleus, and very little cytoplasm
Lymphocyte
What WBC mounts a humoral response by producing antibodies?
Lymphocyte
What WBC is clears the blood of debris (macrophage)?
Monocyte
Vessels that carry blood away from the heart and are named by the organs supply are ______. Also shows a big drop in BP
Muscular arteries
atrial depolarization is represented by what part of an EKG?
P wave
pre-capillary sphincters control ______
Profusion
ventricular depolarization is represented by what part of an EKG?
QRS
Which blood cell lacks a nucleus?
RBC
______ is when blood supply cut off then restored and flow increases above normal
Reactive hyperemia
Amount of blood that leaves the heart in one heartbeat
Stroke volume
Ventricular repolarization is represented by what part of an EKG?
T wave
peripheral resistance is effected by what 3 things?
Vaso diameter, vessel length, viscosity
There is virtually no blood pressure in what vessel?
Vena cava
What happens between S-T?
Ventricular contract and pump blood out
Due to the branching of arteries the type of arteries that would be most numerous would be ________.
arterioles
Cardiac output x resistance =
blood pressure
Permitting the exchange of nutrients and gases between the blood and tissue cells is the primary function of ________.
capillaries
the amount of blood pumped by each ventricle in one minute is _______
cardiac output
What type of tissue is blood?
connective tissue
At rest the heart rate is usually ____ by parasympathetic control?
decreased
Blood that is transported to and from all of the tissues of the body with the exception of the lungs is in the
systemic circulation
The phase of the cardiac cycle during which each chamber contracts and pushes blood into an adjacent chamber is
systole
The vessel layer that has a direct role in vasoconstriction is the __________.
tunica media
