The Respiratory System

Question 1

what is respiration?

Answer 1

the exchange of gases between the atmosphere, blood, and cells

• transfer of O2 from inhaled air to blood
• transfer of CO2 from blood to exhaled air
• Acid-base balance: acidity of blood

Question 2

Four processes that make up respiration:

Answer 2

1. pulmonary ventilation (breathing)
2. external (pulmonary) respiration
3. respiratory gas trasnsport (with assistance of CVS)
4. Internal (tissue) respiration: exchange of as at the level of the cells

Question 3

Structural division of the respiratory system:

Answer 3

1. Upper Respiratory System (Nose, Pharynx, Larynx)

2. Lower Respiratory System (Trachea, Bronchi, Lungs)

Question 4

Functional divisions of the respirtory system:

Answer 4

1. conducting zone (movement of air)

2. respiratory zone (gas exchange)

Question 5

Conducting Zone

Answer 5

Nose, Pharynx, Larynx, Bronchi & divisions

Question 6

Respiratory Zone

Answer 6

Bronchioles & divisions, alveoli

Question 7

Nose:

Answer 7

inhalation

Question 8

Pharynx (throat):

Answer 8

muscular passageway for food and air

Question 9

Larynx (voice box)

Answer 9

connects the pharyx and trachea

Question 10

Trachea:

Answer 10

extends from the laryns to the primary bronchi

Question 11

Pleural Cavity:

Answer 11

lungs enclosed in this membrane.

Question 12

Bronchi to Bronchioles

Answer 12

trachea branches into bronchi at carnia

Question 13

Branching of Bronchial Tree:

Answer 13

trachea -> primary bronchi -> seocndary bronchi -> tertiary bronchi -> bronchioles -> terminal bronchioles