Question

question 1
1 pts
the sensors that provide feedback information to the medullary rhythmicity area are the
central chemoreceptors and peripheral mechanoreceptors.
peripheral chemoreceptors and peripheral mechanoreceptors.
central chemoreceptors and peripheral chemoreceptors.
peripheral chemoreceptors and central mechanoreceptors.
question 2
1 pts
the ____ represents the largest volume of air an individual can move in and out of the lungs.
tidal volume
inspiratory capacity
total lung capacity
vital capacity
question 3
1 pts
during the respiratory cycle, intrapleural pressure is always less than alveolar pressure. this difference is called
continuous positive airway pressure.
elastic recoil.
inflation pressure.
transpulmonary pressure.

Explanation:

• Question 1: Central chemoreceptors detect changes in cerebrospinal fluid \(pH\) (related to \(CO_2\) levels) and peripheral chemoreceptors (carotid and aortic bodies) detect \(O_2\), \(CO_2\), and \(pH\) changes in the blood. Both provide feedback to the medullary rhythmicity area. Mechanoreceptors (e.g., in lungs for stretch - related feedback) are not the main ones for this specific feedback related to chemical - based respiratory regulation.
• Question 2: Vital capacity is the sum of inspiratory reserve volume, tidal volume, and expiratory reserve volume. Tidal volume is the normal breath volume. Inspiratory capacity is tidal + inspiratory reserve. Total lung capacity includes residual volume (air that can't be exhaled). Vital capacity is the largest volume that can be moved in and out.
• Question 3: Transpulmonary pressure is defined as alveolar pressure minus intrapleural pressure. Continuous positive airway pressure is a therapy. Elastic recoil is the tendency of lungs to recoil (not a pressure difference term). Inflation pressure is not the standard term for this specific pressure difference.

Answer:

• Question 1: central chemoreceptors and peripheral chemoreceptors.
• Question 2: vital capacity.
• Question 3: transpulmonary pressure.