A&P II Mastering 17-19
Type A blood contains __________.
A antigens and anti-B antibodies
The plateau phase of the cardiac action potential is due to __________.
Ca2+ influx
Colloid osmotic pressure (COP) is an osmotic pressure gradient equal to __________.
Capillary OP - interstitial OP
How will the cardiac output change if you double the heart rate but reduce the stroke volume by one-half?
It will not change.
The main pacemaker of the heart is the __________.
SA node
Which of the following statements about capillaries is INCORRECT?
The velocity of blood flow increases as blood flows into capillaries.
Which of the following is NOT one of the characteristics of platelets?
They are incapable of oxidative catabolism.
According to the Frank-Starling law, a bigger preload will result in __________.
a stronger contraction
Which of the following is a plasma protein?
albumin
Which of the following describes an anastomosis?
an artery empties directly into a vein without passing through a capillary bed
White blood cells that have an S-shaped nucleus and large dark-staining granules are the __________.
basophils
An example of a waste product from the breakdown of hemoglobin is__________.
biliverdin
The outward force that the blood exerts on the walls of the blood vessels is called __________.
blood pressure
Which of the following is NOT a characteristic of erythrocytes?
capable of protein synthesis
The pulse that can be palpated on the side of the neck is the __________.
carotid pulse
The cusps of the atrioventricular valves attach to the papillary muscles via the __________.
chordae tendineae
The process that converts fibrinogen to fibrin and results in the formation of a more solid clot is called __________.
coagulation
The majority of the arterial supply to the head and neck comes from the __________.
common carotid arteries
Which of the following is NOT an effect of the hormone Angiotensin II?
decreased cardiac output
A patient is suffering from liver failure and their liver is not producing enough plasma proteins. This will result in __________.
decreased colloid osmotic pressure
Which of the following donors will be suitable for a recipient with type A+ blood?
donor with O- blood
The maximum amount of blood in the ventricles at the end of the ventricular filling phase is called __________.
end-diastolic volume
If a patient has a parasitic infection, you would expect an elevated __________ count.
eosinophil
The visceral pericardium is also known as the __________.
epicardium
The superficial vein in the medial leg and thigh is called __________.
great saphenous vein
The percentage of blood composed of erythrocytes is called __________.
hematocrit
The heart is located _________.
in the mediastinum
Which of these changes will result in increased blood pressure?
increased blood volume
Dilating arterioles in a specific tissue will cause __________.
increased local perfusion
The apex of the heart is __________.
inferior
Unlike skeletal muscle action potentials, cardiac muscle action potentials __________.
involve calcium voltage-gated channels
Ventricular systole begins during the __________ phase of the cardiac cycle.
isovolumetric contraction
Blood returning from the lungs enters the __________.
left atrium
Which of the following does NOT drive venous return?
low compliance
Platelets form from large cells called __________.
megakaryocytes
During leukopoiesis, neutrophils are derived from __________.
myeloblasts
Water can move across capillary walls by __________.
osmosis
The force that pulls water into capillaries is called the __________.
osmotic pressure
Which of the following is NOT one of the formed elements in blood?
plasma
The AV valves close when __________.
pressure in the ventricles increases
Blood that leaves the right ventricle enters the __________.
pulmonary trunk
Which of the following is a cause of hypertension?
renal artery stenosis
The vessels that drain blood away from the kidneys are the __________.
renal veins
The left and right brachiocephalic veins merge to form the __________.
superior vena cava
The vessels that deliver oxygen to the tissues of the body are part of the __________.
systemic circuit
Compared to veins, arteries have __________.
thicker tunica media
The process by which a blood clot dissolves is called __________.
thrombolysis
Which of the following is NOT one of the functions of blood?
to protect vital organs
Which of the following blood types is considered the universal donor?
type O-
The first step of hemostasis is __________.
vascular spasm
The baroreceptor reflex response to high blood pressure is __________.
vasodilation and decreased cardiac output
Which of the following vessels will have the lowest blood pressure?
vein
Blood from the systemic circuit returns to the heart via the __________.
vena cavae
The chambers that have just emptied when the second heart sound is heard are the __________.
ventricles
The T wave of an ECG corresponds to __________.
ventricular repolarization