Pharynx

Question 1

Layers

Answer 1

• Outer muscular layer
• Middle fibrous layer
• Inner mucous membrane

Question 2

Muscular layer sections

Answer 2

Outer circular layer : superior, middle, inferior

Inner longitudinal layer: salpingopharangeus, stylopharangeus, palatopharangeus

Question 3

salpingopharangeus point of attachment

Answer 3

The Eustachian tube

Question 4

Function of the constrictor muscles during swallowing?

Answer 4

Responsible for propelling food towards the oesophagus

Question 5

Function of the inner longitudinal muscles during swallowing?

Answer 5

They lift the larynx up and shorten the pharynx to

Question 6

Innervation of muscles

Answer 6

Via the pharyngeal plexus (CN IX, X)

Question 7

Which cranial nerve carries sensory information

Answer 7

CN IX

Question 8

Which cranial nerve carries motor information

Answer 8

CN X

Question 9

What is the pharangeal lymphoid ring known as?

Answer 9

Waldeyers ring

Question 10

what is the function of the lymphoid ring?

Answer 10

To protect the oropharynx from pathogens as many foreign bodies go through here

Question 11

what us waldeyers ring made up of?

Answer 11

adenoid (pharyngeal tonsil)
Tubal tonsil
Palatine tonsils
Lingual tonsil