BSC 2086 Lecture Midterm Questions With Complete
Solutions
How long is one cardiac cycle? Correct Answers 1 heart beat or
.8 seconds
Should venus return = arteriole rejection? Correct Answers
YES
There is dead tissue in a myocardial infarction? T OR F Correct
Answers true
What are ectopic forces? Correct Answers irritants to the heart
muscle that causes an extra heart beat (alters cardiac output)
What are extrinsic factors? Correct Answers by medulla via
sympathetic
What are factors that effect blood velocity (CO)? Correct
Answers higher heart rate = higher blood pressure
-stroke volume = volume ejected
What are intrinsic factors? Correct Answers VC and VD of
smooth muscle
What are the characteristics of blood flow through a vein?
Correct Answers taking blood to heart
deoxygenated blood
has valves
transports blood under LOW pressure
, What are the characteristics of blood flow through an artery?
Correct Answers taking blood away from heart
oxygenated blood (except pulmonary artery)
no valves
trasports under HIGH pressure
What are the steps of the cardiac cycle? Correct Answers Atrial
diastole, atrial systole, ventricular systole, ventricular diastole
What are the two mechanisms that control BP? Correct Answers
intrinsic and extrinsic factors
What causes the blood to leave the capillaries and go into the
tissues? Correct Answers hydrostatic pressure
What does the hypothalamus do in terms of the circulatory
system? Correct Answers senses problems
What happens to BP when the peripheral resistance goes up?
Correct Answers BP goes up
What has the lowest pressure in the circulatory system? Correct
Answers inferior vena cava (2-0) barely makes it
What is a dichrotic notch? Correct Answers temporary raise in
pressure due to back surge in semilunar valve
What is A?
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Solutions
How long is one cardiac cycle? Correct Answers 1 heart beat or
.8 seconds
Should venus return = arteriole rejection? Correct Answers
YES
There is dead tissue in a myocardial infarction? T OR F Correct
Answers true
What are ectopic forces? Correct Answers irritants to the heart
muscle that causes an extra heart beat (alters cardiac output)
What are extrinsic factors? Correct Answers by medulla via
sympathetic
What are factors that effect blood velocity (CO)? Correct
Answers higher heart rate = higher blood pressure
-stroke volume = volume ejected
What are intrinsic factors? Correct Answers VC and VD of
smooth muscle
What are the characteristics of blood flow through a vein?
Correct Answers taking blood to heart
deoxygenated blood
has valves
transports blood under LOW pressure
, What are the characteristics of blood flow through an artery?
Correct Answers taking blood away from heart
oxygenated blood (except pulmonary artery)
no valves
trasports under HIGH pressure
What are the steps of the cardiac cycle? Correct Answers Atrial
diastole, atrial systole, ventricular systole, ventricular diastole
What are the two mechanisms that control BP? Correct Answers
intrinsic and extrinsic factors
What causes the blood to leave the capillaries and go into the
tissues? Correct Answers hydrostatic pressure
What does the hypothalamus do in terms of the circulatory
system? Correct Answers senses problems
What happens to BP when the peripheral resistance goes up?
Correct Answers BP goes up
What has the lowest pressure in the circulatory system? Correct
Answers inferior vena cava (2-0) barely makes it
What is a dichrotic notch? Correct Answers temporary raise in
pressure due to back surge in semilunar valve
What is A?
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