Mucous gland
Encyclopedia
Mucous glands, found in several different parts of the body, typically stain lighter than serous glands during standard histological preparation. Most are multicellular, but goblet cell
are single-celled glands.
.
They are found especially at the back part behind the vallate papillae, but are also present at the apex and marginal parts.
In this connection the anterior lingual glands
(Blandin or Nuhn) require special notice.
They are situated on the under surface of the apex of the tongue, one on either side of the frenulum, where they are covered by a fasciculus
of muscular fibers derived from the Styloglossus
and Longitudinalis inferior
.
They are from 12 to 25 mm. long, and about 8 mm. broad, and each opens by three or four ducts on the under surface of the apex.
Goblet cell
Goblet cells are glandular simple columnar epithelial cells whose sole function is to secrete mucin, which dissolves in water to form mucus. They use both apocrine and merocrine methods for secretion....
are single-celled glands.
Mucous salivary glands
The mucous salivary glands are similar in structure to the buccal and labial glandsLabial glands
The labial glands are situated between the mucous membrane and the Orbicularis oris, around the orifice of the mouth.They are circular in form, and about the size of small peas; their ducts open by minute orifices upon the mucous membrane....
.
They are found especially at the back part behind the vallate papillae, but are also present at the apex and marginal parts.
In this connection the anterior lingual glands
Anterior lingual glands
Anterior lingual glands are deeply placed seromucous glands that are located near the tip of the tongue on each side of the frenulum linguae. They are found on the under surface of the apex of the tongue, and are covered by a bundle of muscular fibers derived from the Styloglossus and...
(Blandin or Nuhn) require special notice.
They are situated on the under surface of the apex of the tongue, one on either side of the frenulum, where they are covered by a fasciculus
Muscle fascicle
In anatomy, a fascicle is a bundle of skeletal muscle fibers surrounded by perimysium, a type of connective tissue.Specialized muscle fibers in the heart that transmit electrical impulses from the Atrioventricular Node to the Purkinje Fibers are fascicles, also referred to as bundle branches...
of muscular fibers derived from the Styloglossus
Styloglossus
The Styloglossus, the shortest and smallest of the three styloid muscles, arises from the anterior and lateral surfaces of the styloid process, near its apex, and from the stylomandibular ligament....
and Longitudinalis inferior
Inferior longitudinal muscle
The Longitudinalis linguæ inferior is a narrow band situated on the under surface of the tongue between the Genioglossus and Hyoglossus.-Course:...
.
They are from 12 to 25 mm. long, and about 8 mm. broad, and each opens by three or four ducts on the under surface of the apex.