Pharynx

Question 1

Parts of pharynx

Answer 1

▪️nasopharynx
▪️oropharynx
▪️laryngopharynx

Question 2

Muscles of the pharynx

Answer 2

▪️superior constrictors
▪️middle constrictors
▪️inferior constrictors
-pharyngeal raphe where muscle meet posteriorly

Question 3

Nasopharynx

Answer 3

▪️after the nasal choanae and before the uvula
▪️pharyngotympanic/eustachian tube - links nasopharynx and middle ear
-helps balance pressure between outside and inside the ear
-allows air to flow between both parts when opened
-can be opened by chewing, swallowing, yawning
-infections can travel up the tube and spread

Question 4

Tonsils

Answer 4

▪️lymphoid tissue in pharynx 
▪️surround the nasal and oral cavities openings 
-pharyngeal (adenoids)
-palatine 
-lingual (under back of tongue)

Question 5

Innervation of pharynx

Answer 5

▪️vagus nerve X (muscles)

▪️glossopharyngeal IX