Cardiopulmonary Anatomy and
Physiology - Chapter 2 Exam
Ventilation - ANS-Mechanism by which oxygen is carried from the atmosphere to the
alveoli and by which carbon dioxide is carried from alveoli to the atmosphere
What measures atmospheric pressure? - ANS-Mercury Barometer
Atmospheric Pressure - ANS-Force exerted by air (gases) that surrounds the body
Barometric Pressure at Sea Level - ANS-760 mm
If pressure in the trachea is -4 mmHg, what is the atmospheric pressure? - ANS-756
mmHg
Gas or liquid always moves from area of ______ pressure to area of ____ pressure. -
ANS-high, low
What is pressure difference called in pulmonary physiology? - ANS-Pressure Gradient
What are pressure gradients responsible for? - ANS-moving air in and out of the lungs
and maintaining the lungs in an inflated state
Primary principles of ventilation: - ANS-mechanisms of pulmonary ventilation that create
pressure gradient, gas always moves down pressure gradient from high pressure area
to low pressure area
Mechanisms of Pulmonary Ventilation: - ANS-1. During inspiration, barometric pressure
is greater than alveolar pressure.
2. During expiration, alveolar pressure is greater than barometric pressure
Boyle's law - ANS-Volume of gas varies inversely proportional to its pressure at
constant temperature
Formula for Boyle's law - ANS-(p1 x v1 = p2 x v2)
When true elastic is acted on by two units of force, how many units of length will it
stretch? - ANS-two units
- how many units of stretch is how many units of length the elastic will stretch
Physiology - Chapter 2 Exam
Ventilation - ANS-Mechanism by which oxygen is carried from the atmosphere to the
alveoli and by which carbon dioxide is carried from alveoli to the atmosphere
What measures atmospheric pressure? - ANS-Mercury Barometer
Atmospheric Pressure - ANS-Force exerted by air (gases) that surrounds the body
Barometric Pressure at Sea Level - ANS-760 mm
If pressure in the trachea is -4 mmHg, what is the atmospheric pressure? - ANS-756
mmHg
Gas or liquid always moves from area of ______ pressure to area of ____ pressure. -
ANS-high, low
What is pressure difference called in pulmonary physiology? - ANS-Pressure Gradient
What are pressure gradients responsible for? - ANS-moving air in and out of the lungs
and maintaining the lungs in an inflated state
Primary principles of ventilation: - ANS-mechanisms of pulmonary ventilation that create
pressure gradient, gas always moves down pressure gradient from high pressure area
to low pressure area
Mechanisms of Pulmonary Ventilation: - ANS-1. During inspiration, barometric pressure
is greater than alveolar pressure.
2. During expiration, alveolar pressure is greater than barometric pressure
Boyle's law - ANS-Volume of gas varies inversely proportional to its pressure at
constant temperature
Formula for Boyle's law - ANS-(p1 x v1 = p2 x v2)
When true elastic is acted on by two units of force, how many units of length will it
stretch? - ANS-two units
- how many units of stretch is how many units of length the elastic will stretch
