3.3 Key Terms

Question 1

Alveoli

Answer 1

Terminal air sacs that constitute the gas exchange surface of the lungs

Question 2

Bronchi

Answer 2

Pair of breathing tubes that branch from the trachea into the lungs

Question 3

Diaphragm

Answer 3

A sheet of muscle that forms the bottom wall of the thoracic cavity in mammals; active in ventilating the lungs

Question 4

Intercostal muscle

Answer 4

Muscle located between the ribs

Question 5

Minute Volume

Answer 5

Volume of air breathed in one minute without conscious effort. Minute volume= tidal volume x (breaths/minute)

Question 6

Residual Volume

Answer 6

Volume of air remaining in lungs after max exhalation

Question 7

Résumé

Answer 7

Brief written account of personal, educational, and professional qualifications and experience, as that prepared by an applicant for a job

Question 8

Spirometer

Answer 8

Instrument for measuring the air entering and leaving the lungs

Question 9

Thoracic cavity

Answer 9

Body cavity in mammals that houses the lungs and heart. It is surrounded in part by ribs and seperated from the lower abdominal cavity by the diaphragm

Question 10

Tidal volume

Answer 10

Volume of air breathed in and out without conscious effort

Question 11

Vital capacity

Answer 11

Total volume of air that can be exhausted after maximal inhalation

Question 12

Abdominal cavity

Answer 12

Body cavity in mammals that primarily houses parts of the digestive, excretory, and reproductive systems. It’s separated from the thoracic cavity by the diaphragm