Respiratory System 10, Cilia and airway protection

Once you have watched the video, please answer these MCQs
Cilia and airway protection
Which of the following statements is false?
a. ciliated cells contain large numbers of mitochondria
b. mucus produced in the nasal cavities is moved by mucociliary clearance mechanisms towards the oropharynx
c. parasympathetic stimulation of the bronchioles will cause bronchodilation
d. sympathetic stimulation of the bronchioles will cause bronchodilation
Which of the following statements is true?
a. the trachea is posterior to the oesophagus
b. olfactory receptors are located in the oropharynx
c. the larynx is mostly composed of smooth muscle
d. all air going in and out of the lungs must pass through the laryngopharynx
Which of the following statements is true about pseudostratified columnar epithelium?
a. the upper layer of cells do not have any contact with the basement membrane
b. only occurs in the respiratory bronchioles and alveoli
c. contains keratin
d. is usually ciliated in the conducting airways
The nerve which transmits the sense of smell is the
a. optic
b. vagus
c. olfactory
d. glossopharyngeal
Which form of cell produces mucus?
a. ciliated pseudostratified columnar epithelium
b. macrophages
c. goblet cells
d. squamous epithelial cells

[@hadijaber3087]

Thank you Doctor John you really explain in a special way. Please doctor can you make a video about (blood supply to the bones)

[@user-ph2jh3sr3y]

Thank you doctor for this job...please expliane the diseases of system..

[@kamaltahir6440]

Comment to support the channel

[@lindasun5178]

Amazingly designed airway protection system! Appreciation!

[@vadimcurudimov2900]

Foarte explicit. Mulţumesc.

[@cha-ronfaheemtaylor4556]

This was an absolutely beautiful, beautiful, beautiful presentation !!
So clearly presented. I was just a little curious about cilia in the
nose, but I think I have been inspired to learn all that you have
explained. I'll also watch some other videos of yours.

[@angehano5018]

Very clever

[@katerinak4164]

Thank you for the very educational videos!

[@ahmedal-qowati2562]

Thank u doctor
that is amazing

[@IbarraAlejandro]

Amazing thank you doctor

[@ahmedal-qowati2562]

l wish to explain more in pathology

[@qasimkhan-qv9hi]

Thanks sir

[@mostafaosama3256]

👌🏼👌🏼

[@mohammedalnour1093]

👍👍

[@imranafzal3973]

Love from Pakistan ❤️