pharynx

Question 1

what cavities comprise the pharynx

Answer 1

nasopharynx

oropharynx

laryngopharynx

Question 2

name the site of the entrance to the auditory tubes

Answer 2

nasopharynx

Question 3

When does the auditory tubes open and why

Answer 3

open during swallowing

allows for the equalization of pressure across the tympanic membrane

Question 4

how does the soft palate react to swallowing

Answer 4

raises during swallowing to narrow the lumen of the nasopharynx

Question 5

what is an additional special function of the pharynx present in ruminants not present in other animals

Answer 5

pharynx received and transmits regurgitated cud to mouth (includes gas from stomach)

Question 6

what is a consequence of regurgitating cud in ruminants

Answer 6

closure of the nasopharynx limits the ability of the gas from the stomach exiting the pharynx and therefore is forced back towards the lungs

can cause pathology of the lungs and tainted milk

Question 7

What would be a consequence if the retropharyngeal lymph nodes were to swell

Answer 7

compression of the pharynx