Question

What are the functions of the follow structures in the lower respiration system and the nasal system:

1. capillary endothelium

2. Alveolar epithelium

3. smooth muscle

4. respiratory capillaries

5. Nasal vestibule

6. right middle lobe

7. Tertiary bronchi

8. right superior lobe

9. Left superior lobe

10. intrapleural space

11. right inferior lobe

12. right primary bronchus

Thank you for helping!

Answer 1

Answer

1. Capillary endothelium

• The cells of capillary endothelium helps in forming respiratory membrane in order to facilitate exit of carbon dioxide and entry of oxygen.

2. Alveolar epithelium

• The cells of slveolar epithelium are of simple squamous type that helps in forming respiratory membrane in order to facilitate exit of oxygen and entry of carbon dioxide.

3. Smooth muscle

• It helps to facilitate the constriction and dilation of the airways to regulate the flow of air into the lungs.

4. Respiratory capillaries

• They surround alveoli to facilitate external respiration.
• It contains high pressure of carbon dioxide and low pressure of oxygen to facilitate gaseous exchange.

5. Nasal vestibule

• The hairs present in the nasal vestibule, traps dust and foreign particles that are inhaled with the air.

6. Right middle lobe

• It contains small branches of conducting airways that connect to alveoli and provide the surface for exchange of gases in the middle region of right lung.

7. Tertiary bronchi

• It serves as a passage way for air to the bronchopulmonary segment.
• It further divides into bronchioles.

8. Right superior lobe

• It contains alveoli and provides the surface for exchange of gases in the superior region of right lung.

9. Left superior lobe

• It is much larger than the superior lobe of right lung.
• It contains alveoli and provides the surface area for exchange of gases in the superior region of left lung.

10. Intrapleural space

• It is the space between parietal and visceral layers of pleura that contains pleural fluid.
• This fluid absorbs shock and prevent trauma to the lungs.

11. Right inferior lobe

• It contains alveoli and provides the surface area for exchange of gases in the inferior segment of the right lung.

12. Right primary bronchus

• It is a right branch of trachea that enters the right lung.
• It divides into secondary bronchi that enters into each lobe of the right lung.