The pharynx Flashcards
1
Q
what is the pharynx made up of
A
muscular tube that is made up of 3 constrictor muscles and 3 extrinsic muscles
2
Q
what are the 3 constrictor muscles
A
- Superior: originates from the medial pterygoid plate and the pterygomandibular raphe.
- Middle: arises from the angle between the lesser and greater horns of the hyoid bone.
- Inferior: arises from the oblique line on the lateral surface of the thyroid cartilage and the fascia covering the Cricothyroid muscle.
3
Q
what is the interior pharynx divided into
A
- nasopharynx
- oropharynx
- laryngeopharynx
4
Q
where is the nasopharynx
A
The Nasophaynx: from the base of the skull to the level of the soft palate.
5
Q
where is the oropharynx
A
the Oropharynx: from the soft palate to the base of the tongue.
6
Q
where is the laryngeopharynx
A
The Laryngopharynx (Hypopharynx): it is the space above and behind the laryngeal opening
7
Q
what is the pharynx lined with
A
The nasopharynx is lined with respiratory mucosa, the other parts contain stratified non-keratinised squamous mucosa
