NR 507-ADVANCED PATHOPHYSIOLOGY:
RESPIRATORY SYSTEM QUESTIONS WITH 100%
ACCURATE ANSWERS
Mechanics of Breathing: Passive Process - Accurate answers During quiet breathing, exhalation is
generally a passive process that does not require energy.
Mechanics of Breathing: Muscle Relaxation - Accurate answers The diaphragm and intercostal
muscles relax, allowing the diaphragm to rise back to its dome shape and the rib cage to descend.
Mechanics of Breathing: Intrapleural Pressure Changes - Accurate answers The volume of the
thoracic cavity decreases, causing an increase in intrapleural pressure, which is now less negative.
Mechanics of Breathing: Airflow Out of the Lungs - Accurate answers As intrapulmonary pressure
becomes greater than atmospheric pressure, air is expelled from the lungs.
Mechanics of Breathing: Forced Breathing - Accurate answers During vigorous activities or
exercise, both inhalation and exhalation can become active processes.
•Accessory Muscles: Additional muscles (such as the sternocleidomastoid, scalene muscles, and
abdominal muscles) may be recruited to assist with deep inhalation and forceful exhalation.
Obstructive Pulmonary Disease - Accurate answers decreased FEV1 indicates airway obstruction
along with a low FEV1/FEV ratio 56%
Example
- COPD
- Asthma
Restrictive Pulmonary Disease - Accurate answers FEV1/FVC ratio above 70%
Examples
- Obesity
- Pregnancy
- Scoliosis
- Pulmonary Fibrosis
Intrinsic asthma - Accurate answers Something internal
- Irritant
- More common in adults
- Triggered by variety of non-allergic factors
- Stress, anxiety, obese, exercising, chemicals, air-borne irritants, infections, GRED,
- NO increased IgE
RESPIRATORY SYSTEM QUESTIONS WITH 100%
ACCURATE ANSWERS
Mechanics of Breathing: Passive Process - Accurate answers During quiet breathing, exhalation is
generally a passive process that does not require energy.
Mechanics of Breathing: Muscle Relaxation - Accurate answers The diaphragm and intercostal
muscles relax, allowing the diaphragm to rise back to its dome shape and the rib cage to descend.
Mechanics of Breathing: Intrapleural Pressure Changes - Accurate answers The volume of the
thoracic cavity decreases, causing an increase in intrapleural pressure, which is now less negative.
Mechanics of Breathing: Airflow Out of the Lungs - Accurate answers As intrapulmonary pressure
becomes greater than atmospheric pressure, air is expelled from the lungs.
Mechanics of Breathing: Forced Breathing - Accurate answers During vigorous activities or
exercise, both inhalation and exhalation can become active processes.
•Accessory Muscles: Additional muscles (such as the sternocleidomastoid, scalene muscles, and
abdominal muscles) may be recruited to assist with deep inhalation and forceful exhalation.
Obstructive Pulmonary Disease - Accurate answers decreased FEV1 indicates airway obstruction
along with a low FEV1/FEV ratio 56%
Example
- COPD
- Asthma
Restrictive Pulmonary Disease - Accurate answers FEV1/FVC ratio above 70%
Examples
- Obesity
- Pregnancy
- Scoliosis
- Pulmonary Fibrosis
Intrinsic asthma - Accurate answers Something internal
- Irritant
- More common in adults
- Triggered by variety of non-allergic factors
- Stress, anxiety, obese, exercising, chemicals, air-borne irritants, infections, GRED,
- NO increased IgE
