Unit 14 - Respiratory System

Question 1

Main functions of the respiratory system

Answer 1

1. Ventilation
2. Exchange of gasses (CO2 and O2) between lungs and blood

Question 2

Ventilation

Answer 2

Air movement in and out of lungs

Question 3

Upper respiratory system

Answer 3

• nose
• nasal cavity
• pharynx

Question 4

Lower respiratory system

Answer 4

• larynx
• trachea
• bronchial tree
• lungs

Question 5

Tissue of mucosa (most of respiratory tract)

Answer 5

Ciliated Pseudostratified epithelium with goblet cells on the lamina propria

Question 6

What do goblet cells secrete

Answer 6

Mucous

Question 7

How and where is mucous swallowed

Answer 7

Cilia sweeps mucous to esophagus where it gets swallowed

Question 8

What is the nose supported by

Answer 8

Hyaline cartilage and bone

Question 9

What are nostrils called

Answer 9

Nares

Question 10

Functions of nasal cavity

Answer 10

1. Airway passage (warms, moistens and filters air)
2. Olfaction (sense of smell)
3. Speech (resonance chamber)

Question 11

What is the nasal cavity divided by

Answer 11

Nasal septum

Question 12

Anterior part of nasal septum

Answer 12

Hyaline cartilage

Question 13

Posterior part of nasal septum

Answer 13

• vomer
• ethmoid
• maxillae
• palatine bones

Question 14

3 areas of thee nasal cavity

Answer 14

1. Vestibule
2. Respiratory area
3. Olfactory area

Question 15

Vestibule

Answer 15

• very tip of your nose (anterior region)
• no mucosa

Question 16

What is the vestibule lined with

Answer 16

• NOT MUCOSA
• lined by thin skin with hair that filters particles (ex. Dust, pollen)

Question 17

Respiratory area of nasal cavity

Answer 17

• Posterior region
• chonchae protrude medically from the lateral walls of nasal cavity