Respiratory System

Question 1

Respiration

Answer 1

• Ventilation of lungs
• Exchanges of gases b/n 1) air and blood, 2) blood and tissue fluid
• Use of O2 in cellular metabolism

Question 2

Emphysema

Answer 2

• alveolar WALL BREAKDOWN
• less compliant lungs, air not efficiently moved in or out
• total surface area decreases

Question 3

Chronic bronchitis

Answer 3

• causes mucus-producing cells to make alot of MUCUS, cilia immobilized and decrease in number

Question 4

Asthma

Answer 4

• allergen triggers histamine release, intense bronchoconstriction

Question 5

Pnuemonia

Answer 5

• lower respiratory tract infection; filling of alveoli with fluid, dead leukocytes, thickening of respiratory membrane, hypoxemia

Question 6

TB

Answer 6

mycobacterium tuberculosis, invades lungs and stimulates formation of fibrous nodules of immune cells around TB bacteria (?), scarring of lungs, decrease in lung compliance

Question 7

ventilation

Answer 7

air that reaches the alVeoli

Question 8

perfusion

Answer 8

air that reaches the blood

- red purse

Question 9

What causes oxygen to have less affinity for hemoglobin, so that it can be unloaded to the tissues?

Answer 9

High temperature and acidic.