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Krause's glands and Wolfring's glands (or Ciaccio's glands) are the accessory lacrimal glands of the lacrimal system of human eye. [1] These glands are structurally and histologically similar to the main lacrimal gland. Glands of Krause are located in the stroma of the conjunctival fornix, and the glands of Wolfring are located along the ...
Ciaccio's glands or Wolfring's glands are small tubular accessory lacrimal glands (glandulae lacrimales accessoriae) found in the lacrimal caruncle of the eyelid. These accessory lacrimal glands are located in the upper border of the tarsus , approximately in the middle between the extremities of the tarsal glands . [ 1 ]
There are approximately forty Krause glands in the region of the upper eyelid, and around 6 to 8 in the region of the lower lid. [2] The function of these glands are to produce tears which are secreted onto the surface of the conjunctiva. There are rare instances of tumors associated with Krause's glands.
The lacrimal gland is a compound tubuloacinar gland, it is made up of many lobules separated by connective tissue, each lobule contains many acini.The acini composed of large serous cells which, produce a watery serous secretion, serous cells are filled with lightly stained secretory granules and surrounded by well-developed myoepithelial cells and a sparse, vascular stroma.
Most lacritin is produced by the lacrimal gland, [4] including the accessory lacrimal gland of Wolfring. [10] Some lacritin is produced by the meibomian gland, and by epithelial cells of the conjunctiva and cornea. [11] Together these epithelia comprise much of the lacrimal functional unit (LFU). Dry eye is the most common disease of the LFU.
Gastric chief cell, Wasmann's glands stomach: serous 14 Glomus coccygeum, coccygeal gland, Luschka's gland or gangliona coccyx, near the tip 15 Goblet cells: digestive tract, respiratory tract: mucous simple unicellular 16 Henle's glands: eyelids, in the conjunctiva: tubular 17 Krause's glands: conjunctiva, middle portion mucous 18 Lieberkuhn's ...
These sensory receptors are located on the medial concave surface of the crescent lumen. The lateral, convex surface of the lumen is covered with non-sensory ciliated cells, where the basal cells are also found. At the dorsal and ventral aspect of the lumen are vomeronasal glands, which fill the vomeronasal lumen with fluid.
The flehmen response (/ ˈ f l eɪ m ən /; from German flehmen, to bare the upper teeth, and Upper Saxon German flemmen, to look spiteful), also called the flehmen position, flehmen reaction, flehmen grimace, flehming, or flehmening, is a behavior in which an animal curls back its upper lip exposing its front teeth, inhales with the nostrils usually closed, and then often holds this position ...