AI Powered (Respiratory Epithelium Adaptations)

Question 1

What type of epithelium is the respiratory epithelium?

Answer 1

Pseudostratified columnar ciliated epithelium with goblet cells

This type of epithelium is specifically designed for the respiratory tract.

Question 2

What do goblet cells secrete?

Answer 2

Mucous

This mucous forms a watery layer on the cilia.

Question 3

What is the purpose of the watery layer formed by mucous on cilia?

Answer 3

To humidify the inspired air

This prevents the air from dehydrating the alveoli.

Question 4

What is the temperature of air when it reaches the alveoli?

Answer 4

37°C

This is achieved through the heat radiated by blood vessels in the lamina propria.

Question 5

What role do cilia on columnar cells play in the respiratory system?

Answer 5

They filter inspired air

This helps in trapping particles and pathogens.

Question 6

What are vibrissae and where are they located?

Answer 6

Hair-like structures at the anterior nares

They prevent large particles from entering the respiratory tract.

Question 7

What effect do bony projections in the nasal cavity have on airflow?

Answer 7

They make the air turbulent

This slows down the airflow, allowing more time for particles to be trapped in mucus.

Question 8

What is mucociliary escalation?

Answer 8

The process where cilia beat in a wave-like pattern to propel trapped particles towards the nasopharynx

This is part of the respiratory defense mechanism.

Question 9

What reflexes are involved in removing particles from the respiratory tract?

Answer 9

Coughing and sneezing

These reflexes help expel trapped particles and irritants.