Respiratory system

Question 1

The Upper Respiratory Tract consists of

Answer 1

• Nose
• Nasal Cavity
• Pharynx

Question 2

In the Respiratory mucosa, the cilia move

Answer 2

Contaminated mucus posteriorly to throat

Question 3

The Respiratory mucosa warms inspired air with the use of

Answer 3

Capillaries and veins

Question 4

What triggers sneezing in the Respiratory mucosa?

Answer 4

Sensory nerve ending

Question 5

What are the three parts of the Pharynx?

Answer 5

• Nasopharynx
• Oropharynx
• Laryngopharynx

Question 6

What is the Nasopharynx?

Answer 6

Airway posterior to nasal cavity

Question 7

What happens to the Nasopharynx during swallowing?

Answer 7

It is closed by the soft palate and uvula

Question 8

What is the Oropharynx?

Answer 8

Passageway for food and air

Question 9

What is the Laryngopharynx?

Answer 9

Passageway for food and air

Question 10

The Laryngopharynx is continuous with

Answer 10

Larynx and esophagus

Question 11

The Lower Respiratory Tract consists of

Answer 11

• Larynx
• Trachea
• Bronchi

Question 12

The Larynx is attached to the

Answer 12

Hypoid Bone

Question 13

The Larynx opens up into the

Answer 13

Laryngopharynx

Question 14

The Larynx is continuous with the

Answer 14

Trachea

Question 15

What is the function of the Larynx?

Answer 15

• Provides patent airway
• Routes air and food
• Voice production

Question 16

The Trachea is known as the

Answer 16

Windpipe

Question 17

The Trachea wall is composed of

Answer 17

Three layers

Question 18

The innermost wall of the Trachea contains

Answer 18

Ciliated epithelium with goblet cells

Question 19

What contracts during coughing to expel mucus?

Answer 19

Trachealis

Question 20

What is the Carina?

Answer 20

Point where trachea branches into two main bronchi

Question 21

What is the Pleura?

Answer 21

The serous membrane that lines the outer surfaces of the lung and adjacent internal thoracic wall

Question 22

What are the steps of Respiration?

Answer 22

• Pulmonary Ventilation
• Alveolar Gas Exchange
• Gas Transport
• Systemic Gas Exchange

Question 23

What does Boyle’s Law State and what is it?

Answer 23

The pressure of a gas varies inversely with its volume

P1V1 = P2V2

Question 24

What are the two mechanics of respiration?

Answer 24

• Inspiration

- Expiration

Question 25

What happens to the diaphragm during inspiration?

Answer 25

It contracts

Question 26

What happens to the ribs during inspiration?

Answer 26

They are elevated

Question 27

What in the brain has control over breathing?

Answer 27

Cerebral cortex

Question 28

What are the respiratory centers in the brain?

Answer 28

• Medulla

- Pons

Question 29

Dalton’s Law communicates the idea of

Answer 29

Partial pressure

Question 30

Henry’s Law states that

Answer 30

The solubility of gas in a liquid depends on:

• The partial pressure of the gas in the air
• The solubility coefficient of the gas in the liquid

Question 31

CO2 is more soluble than

Answer 31

O2

Question 32

O2 is more soluble than

Answer 32

N2

Question 33

Alveolar gas exchange happens

Answer 33

Across the respiratory membrane

Question 34

Alveolar gas exchange is influenced by

Answer 34

• Thickness and surface area of respiratory membrane
• Partial pressure gradients
• Gas solubilities

Question 35

How is O2 carried in the blood?

Answer 35

• About 2% in plasma

- About 98% bound to each Fe of hemoglobin

Question 36

How is CO2 transported in the blood?

Answer 36

• About 7-10% dissolved in plasma
• 20% bound to globin of hemoglobin
• 70% as bicarbonate ions in plasma