PGY 502 Final Exam Questions With 100%
Verified Answers!!
Pleural Pressure
Pressure within the pleural cavity, typically negative.
Alveolar Pressure
Pressure inside the alveoli, varies during breathing.
Airflow
Movement of air in and out of lungs.
Lung Volume
Total volume of air in the lungs.
Compliance
Lung's ability to expand with pressure changes.
Restrictive Lung Disease
Conditions causing reduced lung compliance.
Obstructive Lung Disease
Conditions causing increased airway resistance.
Surface Tension
Force at the liquid-gas interface in alveoli.
Surfactants
Substances reducing surface tension in alveoli.
Work of Breathing
Energy required for inhalation and exhalation.
, Cyclic Breathing
Regular pattern of inhalation and exhalation.
Central Nervous System
Brain regions controlling respiratory patterns.
Pulmonary Afferents
Nerve fibers relaying lung conditions to the CNS.
Chemoreceptors
Sensors detecting changes in blood gases and pH.
Arterial PO2
Partial pressure of oxygen in arterial blood.
Arterial PCO2
Partial pressure of carbon dioxide in arterial blood.
Ventilation Reflex Responses
Automatic adjustments in breathing based on stimuli.
Negative Pressure
Sub-atmospheric pressure aiding in inhalation.
Positive Pressure
Supra-atmospheric pressure aiding in exhalation.
Boyle's Law
Increased volume leads to decreased pressure.
Diaphragm Contraction
Muscle action initiating inhalation.
Pressure Gradient
Verified Answers!!
Pleural Pressure
Pressure within the pleural cavity, typically negative.
Alveolar Pressure
Pressure inside the alveoli, varies during breathing.
Airflow
Movement of air in and out of lungs.
Lung Volume
Total volume of air in the lungs.
Compliance
Lung's ability to expand with pressure changes.
Restrictive Lung Disease
Conditions causing reduced lung compliance.
Obstructive Lung Disease
Conditions causing increased airway resistance.
Surface Tension
Force at the liquid-gas interface in alveoli.
Surfactants
Substances reducing surface tension in alveoli.
Work of Breathing
Energy required for inhalation and exhalation.
, Cyclic Breathing
Regular pattern of inhalation and exhalation.
Central Nervous System
Brain regions controlling respiratory patterns.
Pulmonary Afferents
Nerve fibers relaying lung conditions to the CNS.
Chemoreceptors
Sensors detecting changes in blood gases and pH.
Arterial PO2
Partial pressure of oxygen in arterial blood.
Arterial PCO2
Partial pressure of carbon dioxide in arterial blood.
Ventilation Reflex Responses
Automatic adjustments in breathing based on stimuli.
Negative Pressure
Sub-atmospheric pressure aiding in inhalation.
Positive Pressure
Supra-atmospheric pressure aiding in exhalation.
Boyle's Law
Increased volume leads to decreased pressure.
Diaphragm Contraction
Muscle action initiating inhalation.
Pressure Gradient
