NEW
Font size
WorksheetsG. Factors that Effect Blood Flow
Total questions: 11
Worksheet time: 6mins
A high viscosity of blood causes an increased resistance in the blood vessels and leads to slow blood flow.
True
False
The changing of the shape of red blood cells to a crescent shape decreases resistance and lead to a faster blood flow.
True
False
The narrowing of blood vessels increases pressure and leads to a faster blood flow.
True
False
Viscosity refers to the thickness of blood.
True
False
Blood thickness (viscosity) is caused by the number of red blood cells. Thick blood travels through blood vessels at a slower rate than thin blood.
True
False
Which of the following factors would most directly affect blood flow through the circulatory system?
blood pressure
blood sugar
respiratory rate
outside temperature
The factors that most directly affect blood flow are blood pressure, blood volume, resistance and activity level.
True
False
What causes blood pressure?
cholesterol in the blood
stress that exercise puts on heart muscle
contraction of the ventricles in the heart
removal of oxygen from the blood
Blood pressure is caused by contraction of the ventricles of the heart and also by the elasticity of the arterial walls
True
False
Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise?
Line A
Line B
Line C
Line D
Which of the following best describes the connection between cardiovascular disease and age? As people age.......
their blood vessels become more elastic leading to less cardiovascular disease.
the heart becomes more efficient with each pump, increasing cardiac output.
blood pressure decreases leading to more cardiovascular disease.
plaque builds up in the arteries increasing vessel resistance, which leads to disease.
