tubal tonsil

(redirected from Gerlach tonsil)

tu·bal ton·sil


tubal tonsil

Lymphoid tissue located in the mucous membrane of the tube connecting the middle ear to the nasopharynx.
See also: tonsil


Bartolommeo E., Italian anatomist, 1524-1574.
tuba eustachiana - Synonym(s): eustachian tube
tuba eustachii - Synonym(s): eustachian tube


Joseph, German anatomist, 1820-1896.
Gerlach anular tendon - the thickened portion of the circumference of the tympanic membrane that is fixed in the tympanic sulcus. Synonym(s): fibrocartilaginous ring of tympanic membrane
Gerlach valve - a fold of mucous membrane, simulating a valve, sometimes found at the origin of the vermiform appendix. Synonym(s): valve of vermiform appendix; valvula processus vermiformis
Gerlach valvula - the network of fibers at the iridocorneal angle between the anterior chamber of the eye and the venous sinus of the sclera. Synonym(s): trabecular reticulum


1. a small mass of lymphoid tissue, especially that found in close association with the mucous membrane of the throat; generally used alone to designate the palatine tonsil. Other structures referred to as tonsils are the cecal, lingual, esophageal, paraepiglottic, pharyngeal and tubal lymphoid aggregations.
2. a small mass of tissue.

cecal tonsil
the accumulated mass of lymphoid tissue in the wall of cecum especially the proximal segment of the avian cecum.
cerebellar tonsil
a rounded mass forming part of the cerebellum on its inferior surface.
esophageal tonsil
large volume of lymphoid tissue in the caudal segment of the duck's esophagus.
follicular tonsil
a tonsil bearing numerous invaginations of its surface epithelium (fossulae) each surrounded by lymphoid tissue to form a follicle, as in the palatine tonsils of cattle or the lingual tonsils of the horse.
lingual tonsil
diffuse collection of lymphoid tissue near the tongue root of most mammals.
palatine tonsil
see palatine tonsil.
paraepiglottic tonsil
a collection of lymphoid tissue craniolateral to the epiglottic base.
pharyngeal tonsil
a collection of lymphoid tissue in the roof of the nasopharynx in pigs.
soft palate tonsil
lymphoid tissue within the soft palate; principal tonsils in pigs in which it forms twin smooth patches of mucosa.
tubal tonsil
the lymphoid tissue clustered close to the pharyngeal orifice of the auditory tube.