BIOL 3324 - Exam 3 UH Ogletree
In the 16th century, William Harvey discovered evidence that - Answer-Blood is recirculated instead of
consumed.
The most accurate definition of artery is a vessel that - Answer-Transports blood away from the heart.
Capillaries are best described as - Answer-Microscopic vessels in which blood exchanges material with
the interstitial fluid.
Which organ is NOT known to include a special portal system for blood? - Answer-Heart
The purpose of having valves in the cardiovascular system is to - Answer-Ensure that blood flows in one
direction.
Which artery/arteries branch(es) most proximal to the beginning of the aorta at the heart? - Answer-
Coronary
The hepatic portal vein carries blood away from the - Answer-Digestive tract.
The medical term for heart attack is - Answer-Myocardial infarction.
The driving force for blood flow is a(n) __________ gradient. - Answer-Pressure
, Each of the following changes will result in increased blood flow to a tissue except one. Identify the
exception. - Answer-Decreased vessel diameter
Which parameters are associated with increased resistance? - Answer-Reduced flow
As blood vessel length increases, - Answer--Resistance increases.
-Flow decreases.
When a quantity is expressed as "4 cm/sec," what is being described is the - Answer-Velocity of flow.
The sac around the heart is the - Answer-Pericardium.
The function of the pericardial fluid is to - Answer-Reduce friction between the heart and the
pericardium.
In the heart, valves are located - Answer--Between the atria and the ventricles.
-Between the ventricles and the arteries.
Which valves have chordae tendineae? - Answer--Bicuspid and tricuspid valves
-Mitral valve
The term myogenic indicates that the heart muscle is the source of - Answer-The electrical signal that
triggers heart contraction.
The action potential in a cardiac contractile cell causes - Answer-Opening of L-type calcium channels.
Stretching a myocardial cell - Answer--Allows more Ca2+ to enter.
In the 16th century, William Harvey discovered evidence that - Answer-Blood is recirculated instead of
consumed.
The most accurate definition of artery is a vessel that - Answer-Transports blood away from the heart.
Capillaries are best described as - Answer-Microscopic vessels in which blood exchanges material with
the interstitial fluid.
Which organ is NOT known to include a special portal system for blood? - Answer-Heart
The purpose of having valves in the cardiovascular system is to - Answer-Ensure that blood flows in one
direction.
Which artery/arteries branch(es) most proximal to the beginning of the aorta at the heart? - Answer-
Coronary
The hepatic portal vein carries blood away from the - Answer-Digestive tract.
The medical term for heart attack is - Answer-Myocardial infarction.
The driving force for blood flow is a(n) __________ gradient. - Answer-Pressure
, Each of the following changes will result in increased blood flow to a tissue except one. Identify the
exception. - Answer-Decreased vessel diameter
Which parameters are associated with increased resistance? - Answer-Reduced flow
As blood vessel length increases, - Answer--Resistance increases.
-Flow decreases.
When a quantity is expressed as "4 cm/sec," what is being described is the - Answer-Velocity of flow.
The sac around the heart is the - Answer-Pericardium.
The function of the pericardial fluid is to - Answer-Reduce friction between the heart and the
pericardium.
In the heart, valves are located - Answer--Between the atria and the ventricles.
-Between the ventricles and the arteries.
Which valves have chordae tendineae? - Answer--Bicuspid and tricuspid valves
-Mitral valve
The term myogenic indicates that the heart muscle is the source of - Answer-The electrical signal that
triggers heart contraction.
The action potential in a cardiac contractile cell causes - Answer-Opening of L-type calcium channels.
Stretching a myocardial cell - Answer--Allows more Ca2+ to enter.
