Exam 17: Mechanics of Breathing

Distinguish between intrapulmonary and intrapleural pressure.

Premature babies frequently need to be put on a respirator to help them breathe.Why does this become a necessary treatment for many premature babies?

Match the lung capacity with its description. -the amount of air remaining in the lungs after a normal breath

The pressure contributed by a single gas in a mixture of gases is known as ________.

Because of their smooth muscle component,the structures of the lower respiratory system that can most alter airway resistance are the ________.

Pressure and volume of gas in a container are related to temperature and number of gas molecules.This is known as ________ law.

The opposing layers of pleural membrane are held together by a thin film of ________.

Cindy is taking 14 breaths per minute.Her vital capacity is 3000 mL,her total lung capacity is 4000 mL,and her tidal volume is 450 mL per breath.Calculate the following: A.Cindy's total pulmonary ventilation (minute volume) B.Cindy's alveolar ventilation rate

A newborn infant is found dead,abandoned by the road.Among the many questions that the police would like to have answers to is whether the infant was born dead or alive.After an autopsy,the medical examiner tells them that the infant was dead at birth.How could the medical examiner determine this?

The ease with which the lungs stretch in response to changes in pressure is termed ________.

Air flow in the respiratory system and blood flow in the cardiovascular system have many similarities-name them.How are they different?

The upper respiratory tract includes all EXCEPT which of the following?

Poiseuille's law is summarized this way:

Increasing the alveolar ventilation rate will

Match the type of breathing with its description. -rapid breathing

The distance between the alveolar airspace and capillary endothelium is ________,allowing gases to diffuse ________ between them.

When the diaphragm and external intercostal muscles contract,