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Beneath the epithelium is a layer of lymphoid nodules containing lymphocytes. Mucous glands located at the root of the tongue are drained through several ducts into the crypts of the lingual tonsils. [2] [3] Secretions of these mucous glands keep the crypts clean and free of any debris.
The tonsils are a set of lymphoid organs facing into the aerodigestive tract, which is known as Waldeyer's tonsillar ring and consists of the adenoid tonsil (or pharyngeal tonsil), two tubal tonsils, two palatine tonsils, and the lingual tonsils.
The lingula is a small tongue-shaped process, consisting of four or five folia; it lies in front of the lobulus centralis, and is concealed by it. Anteriorly, it rests on the dorsal surface of the anterior medullary velum , and its white substance is continuous with that of the velum.
The lingula is the first lobule of the upper portion of the vermis on the superoinferior axis and pertains to the paleocerebellum together with the central lobule, culmen, pyramid and uvula. It is separated from the central lobule by the pre-central fissure. The central lobule is the second lobule of the upper portion of the vermis on the ...
In medicine, nodules are small firm lumps, usually greater than 1 cm in diameter. [ 1 ] [ 2 ] If filled with fluid they are referred to as cysts . [ 2 ] Smaller (less than 0.5 cm) raised soft tissue bumps may be termed papules .
A halo sign refers to a GGO that fills the area around a consolidation or nodule. This is a most commonly seen in various types of pulmonary infections, including CMV pneumonia, tuberculosis, nocardia infection, some fungal pneumonias, and septic emboli. Schistosomiasis, a parasitic infection, also commonly presents with the halo sign ...
Ankyloglossia. Ankyloglossia, also known as tongue-tie, is a congenital anomaly characterised by an abnormally short lingual frenulum; when severe, the tip of the tongue cannot be protruded beyond the lower incisor teeth. [6]
The lingula of the mandible is a prominent bony ridge on the medial side of the mandible. It is next to the mandibular foramen . It gives attachment to the sphenomandibular ligament .