Hole's Human Anatomy and Physiology (Shier), 13th Edition

Ph.I.L.S. 4.0 Quizzing :

Ph.I.L.S. 3.0 Quizzing

1
What happens to the pressure inside the thorax when the volunteer inhales?
A)The pressure inside the thorax is less than that outside the body, so air moves into the lungs.
B)The pressure inside the thorax is the same as that outside the body.
C)The pressure inside the thorax is greater than that outside the body, so air moves into the lungs.
2
What is the effect of this negative pressure on the veins around the heart?
A)The negative pressure pushes blood away from the heart.
B)The negative pressure has no effect on blood flow in the veins.
C)The negative pressure pulls blood into the veins around the heart.
3
Look at your trace. What happens to the heart rate when the volunteer is inhaling (when the red trace is deflected upwards)?
A)The heart rate increases.
B)The heart rate does not change.
C)The heart rate decreases.
4
Assume that the size of the finger pulse signal indicates the stroke volume of the left ventricle. Look at your trace; what happens to stroke volume when the volunteer is inhaling (when the red trace is deflected upwards)?
A)The stroke volume increases.
B)The stroke volume does not change.
C)The stroke volume decreases.
5
When the volunteer is inhaling (when the red trace is deflected upwards) the amount of blood returning to the heart increases and:
A)the heart rate decreases and the stroke volume increases.
B)the heart rate decreases and the stroke volume decreases.
C)the heart rate increases and the stroke volume increases.
D)the heart rate increases and the stroke volume decreases.
6
What happens to the pressure inside the thorax when the volunteer exhales?
A)The pressure inside the thorax is less than that outside the body, so moves out of the lungs.
B)The pressure inside the thorax is the same as that outside the body.
C)The pressure inside the thorax is greater than that outside the body, so air moves out of the lungs.
7
What is the effect of this positive pressure on the veins around the heart?
A)The positive pressure pushes blood away from the heart.
B)The positive pressure has no effect on blood flow in the veins.
C)The positive pressure pulls blood into the veins around the heart.
8
Look at your trace. What happens to the heart rate when the volunteer is exhaling (when the red trace is deflected downwards)?
A)The heart rate increases.
B)The heart rate does not change.
C)The heart rate decreases.
9
Assume that the size of the finger pulse signal indicates the stroke volume of the left ventricle. Look at your trace; what happens to stroke volume when the volunteer is exhaling (when the red trace is deflected downwards)?
A)The stroke volume increases.
B)The stroke volume does not change.
C)The stroke volume decreases.
10
When the volunteer is exhaling (when the red trace is deflected downwards) the amount of blood returning to the heart increases and:
A)the heart rate increases and the stroke volume decreases.
B)the heart rate increases and the stroke volume increases.
C)the heart rate decreases and the stroke volume decreases.
D)the heart rate decreases and the stroke volume increases.
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