WGU D313 Verified Multiple Choice and Conceptual
Actual Final Exam Questions With Reviewed 100%
Correct Detailed Answers
Guaranteed Pass!!Current Update
1. Phonation - ANSWER voice production
2. Vocal ligaments are connected to what? - ANSWER Arytenoid cartilage
3. What muscles contract during forceful exhalation - ANSWER Abdominal
muscles
Internal intercostal muscles
4. Main muscles that can aid in ventilation - ANSWER Diaphragm
Intercostal muscles
5. Insertion and origin of external intercostals - ANSWER Originates on the
inferior borders of ribs one through 11
Inserts on the superior borders of ribs two through 12
6. Insertion and origin of the internal intercostals - ANSWER Originates on
the inferior borders of the ribs and costal cartilages
,Inserts all new superior borders of ribs two through 12
7. Action of the external intercostals - ANSWER elevates ribs during
inspiration
8. Action of the internal intercostals - ANSWER depress rib cage for forced
exhalation
9. Insertion and origin of the innermost intercostals - ANSWER Originates
on the internal aspect of ribs one through 11
Inserts on the internal aspect of ribs two through 12
10.Action of the innermost intercostals - ANSWER Stiffens the chest wall
during forced exhalation
11.What is the action caused by the contraction of the external intercostal
muscles? - ANSWER The thoracic cavity volume increases
12.Boyle's Law in regards to inhalation - ANSWER When the volume of the
lungs is expanded, the air pressure within the lung is lower than
atmospheric pressure and allows air from outside to flow in
13.Surfactants in the lungs - ANSWER Compounds that lower the surface
tension of alveolar fluid and helps reduce the effort needed to inflate the
alveoli
,14.What is the relationship between the resistance to airflow caused by the
diameter of the airway in the phases of respiration and healthy individuals?
- ANSWER Airway resistance decreases during inspiration due to an
increase in the diameter of the airways.
15.Based on Boyles law, how would lung pressure change in a case of
bronchiolitis? - ANSWER Pressure will increase because the volume will
decrease
16.Alveolar basement membrane - ANSWER Thin, extracellular membrane
surrounding the alveolar wall
Consists of the Basal lamina and fibrous reticular lamina
Anchors alveolar cells to connective tissue
17.Alveolar macrophages - ANSWER phagocytose small particles in alveoli
18.Type one alveolar cells - ANSWER flat cells; sites of gas exchange
19.Type two alveolar cells - ANSWER secrete surfactant
20.What structure lines the closed internal spaces of the body - ANSWER
Endothelium
, Dalton's law - ANSWER Each gas in the mixture, behaves, as if no other gases
were present. This means the total pressure of a gas mixture can be determined
by adding together the partial pressures of each individual gas in the mixture.
Henry's law - ANSWER The quantity of a gas that will readily dissolve in a
solution is proportional to the partial pressure of that gas, and it's solubility
Gases with high partial pressure and high solubility stay in a solution longer than
those with low, partial pressure and low solubility
What happens during external respiration? - ANSWER Oxygen diffuses across
the respiratory membrane from the alveoli to the capillaries, where CO2 diffuses
out of the capillary into the alveoli
Where are the peripheral chemo receptors - ANSWER Arch of aorta
Carotid arteries
An increase in CO2 levels in the blood leads to what level of pH in the brain brain
- ANSWER Decreased
Acidotic
When the pH in the blood is decreased, what will the brain do?
What is the overall result? - ANSWER Increase respiration
Actual Final Exam Questions With Reviewed 100%
Correct Detailed Answers
Guaranteed Pass!!Current Update
1. Phonation - ANSWER voice production
2. Vocal ligaments are connected to what? - ANSWER Arytenoid cartilage
3. What muscles contract during forceful exhalation - ANSWER Abdominal
muscles
Internal intercostal muscles
4. Main muscles that can aid in ventilation - ANSWER Diaphragm
Intercostal muscles
5. Insertion and origin of external intercostals - ANSWER Originates on the
inferior borders of ribs one through 11
Inserts on the superior borders of ribs two through 12
6. Insertion and origin of the internal intercostals - ANSWER Originates on
the inferior borders of the ribs and costal cartilages
,Inserts all new superior borders of ribs two through 12
7. Action of the external intercostals - ANSWER elevates ribs during
inspiration
8. Action of the internal intercostals - ANSWER depress rib cage for forced
exhalation
9. Insertion and origin of the innermost intercostals - ANSWER Originates
on the internal aspect of ribs one through 11
Inserts on the internal aspect of ribs two through 12
10.Action of the innermost intercostals - ANSWER Stiffens the chest wall
during forced exhalation
11.What is the action caused by the contraction of the external intercostal
muscles? - ANSWER The thoracic cavity volume increases
12.Boyle's Law in regards to inhalation - ANSWER When the volume of the
lungs is expanded, the air pressure within the lung is lower than
atmospheric pressure and allows air from outside to flow in
13.Surfactants in the lungs - ANSWER Compounds that lower the surface
tension of alveolar fluid and helps reduce the effort needed to inflate the
alveoli
,14.What is the relationship between the resistance to airflow caused by the
diameter of the airway in the phases of respiration and healthy individuals?
- ANSWER Airway resistance decreases during inspiration due to an
increase in the diameter of the airways.
15.Based on Boyles law, how would lung pressure change in a case of
bronchiolitis? - ANSWER Pressure will increase because the volume will
decrease
16.Alveolar basement membrane - ANSWER Thin, extracellular membrane
surrounding the alveolar wall
Consists of the Basal lamina and fibrous reticular lamina
Anchors alveolar cells to connective tissue
17.Alveolar macrophages - ANSWER phagocytose small particles in alveoli
18.Type one alveolar cells - ANSWER flat cells; sites of gas exchange
19.Type two alveolar cells - ANSWER secrete surfactant
20.What structure lines the closed internal spaces of the body - ANSWER
Endothelium
, Dalton's law - ANSWER Each gas in the mixture, behaves, as if no other gases
were present. This means the total pressure of a gas mixture can be determined
by adding together the partial pressures of each individual gas in the mixture.
Henry's law - ANSWER The quantity of a gas that will readily dissolve in a
solution is proportional to the partial pressure of that gas, and it's solubility
Gases with high partial pressure and high solubility stay in a solution longer than
those with low, partial pressure and low solubility
What happens during external respiration? - ANSWER Oxygen diffuses across
the respiratory membrane from the alveoli to the capillaries, where CO2 diffuses
out of the capillary into the alveoli
Where are the peripheral chemo receptors - ANSWER Arch of aorta
Carotid arteries
An increase in CO2 levels in the blood leads to what level of pH in the brain brain
- ANSWER Decreased
Acidotic
When the pH in the blood is decreased, what will the brain do?
What is the overall result? - ANSWER Increase respiration
