Tonsils & Adenoids Flashcards
Waldeyer’s tonsillar ring is a ring of _________________ in the ____________ layer of oropharynx and nasopharynx
Waldeyer’s tonsillar ring is a ring of lymphoid aggregation in the subepithelial layer of oropharynx and nasopharynx
Waldeyer’s tonsillar ring is a ring of lymphoid aggregation in the subepithelial layer of _____________ and ______________
Tonsils & adenoids contain concentrations of ____________ but are devoid of __________ lymphatic vessels
Tonsils & adenoids contain concentrations of lymphocytes but are devoid of efferent lymphatic vessels
What are the main tonsils
Palatine tonsils
Pharyngeal tonsils
Lingual tonsils
What are pharyngeal tonsils aka
Adenoids
Where are palatine tonsils located
sit within the muscular anterior and posterior tonsillar pillars (palatoglossus and palatopharyngeus)
Where are pharyngeal tonsils (adenoids) located
positioned in the midline of the posterior pharyngeal wall
Where are lingual tonsils located
posteriorly at the base of the tongue
What is the name of the area where the palatine tonsils meet inferiorly with the lingual tonsils
plica triangularis
What is the fossa of rosenmuller
space created lateral to the adenoid and posteromedial to the eustachian tube orifice
What is the gerlach’s tonsil located
within the lip of the fossa of Rosenmuller, goes into Eustachian tube
The palatine tonsil is composed of____________ epithelium with _________ and ______________
The palatine tonsil is composed of stratified squamous epithelium with deep crypts and lymphoid follicles
Base of the tonsil is separated from underlying muscle by a __________________________
Base of the tonsil is separated from underlying muscle by a dense collaginous hemi-capsule
Adenoids is composed of _______________________________ epithelium with some stratified squamous epithelium and also a ____________ deep to the stratified squamous layer
Adenoids is composed of ciliated pseudostratified columnar epithelium with some stratified squamous epithelium and also a transitional layer deep to the stratified squamous layer
What is the function of the ciliated pseudostratified columnar in adenoids
mucociliary clearance
What is the function of the transitional layer in adenoids
Antigen processing
What happens to the ciliated pseudostratified columnar vs stratified squamous epithelium with chronic infection
ciliated pseudostratified columnar - thins
stratified squamous - thickens
The adenoids have deep _____ with ______ crypts
The adenoids have deep folds with few crypts
Summarise the histology of the upper aerodigestive tract
Where food goes / high use / trauma
→Squamous
→Oral, pharyngeal, vocal cords, oesophagus
Where air goes
→Columnar
→Nose, PNS, Larynx, Trachea
