Respiratory System

Question 1

Respiration (to respire)

Answer 1

the act of respiring; inhalation and exhalation of air; breathing

Question 2

Diaphragm

Answer 2

the partition separating the thoracic cavity from the abdominal cavity in mammals

Question 3

Trachea

Answer 3

the tube in humans and other air-breathing vertebrates extending from the larynx to the bronchi, serving as the principal passage for conveying air to and from the lungs; the windpipe

Question 4

Lung

Answer 4

either of the two saclike respiratory organs in the thorax of humans and the higher vertebrates

Question 5

Bronchi

Answer 5

either of the two main branches of the trachea

Question 6

Alveolar

Answer 6

an air cell of the lungs, formed by the terminal dilation of tiny air passageways