Exam 35: Respiration

Gas exchange in mammalian lungs occurs in the ____.

Match the respiratory disease or disorder with the best description. -active bacterial infection, cough up bloody mucus, have chest pain, and find breathing difficult

In which group does some gas exchange occur across the skin?

Adult insects exchange respiratory gases primarily by means of ____.

Inhalation is always ____, whereas exhalation is usually ____.

Contraction and relaxation of smooth muscle in the walls of ____ can alter their diameter and therefore air flow.

Match the respiratory disease or disorder with the best description. -inflammation of bronchial epithelium with excess mucous production and coughing

The maximum volume of air that moves in and out of the lungs with forced inhalation and exhalation is the ____.

Vocal cords are made of ____.

Match the respiratory disease or disorder with the best description. -thin, elastic alveolar walls are destroyed

The human vocal cords are located in the ____.

Gases diffuse down a ____ gradient.

The respiratory membrane consists of alveolar epithelium, capillary endothelium, and ____.

Match the type of respiratory system with the correct description.​ -​Air is conveyed directly to tissues by reinforced tubes.

Match the type of respiratory system with the correct description.​ -​Air sacs in the lungs provide continual one-way flow of fresh, oxygen-rich air.

Match the structure with the correct description. -pharynx

The steepness of the concentration gradient across the respiratory membrane affects gas exchange, with a steeper gradient ____.

The first lungs evolved from outpouchings of the gut wall in some ____.

Gases enter and leave a mammal's body by diffusing across a ____.

The group of animals with an efficient respiratory system, in that there is no "stale air" after exhalation, is the ____.