Information about Acinus
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| Section of pancreas of dog. X 250. (Alveolus labeled at center top.) | |
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| Centroacinar cells | |
They are found in many organs, including:
- the stomach[1]
- the sebaceous gland of the scalp
- the salivary glands of the tongue[2]
- the liver
- the lacrimal glands
- the pancreas [3]
The term "acinus" is considered synonymous with alveolus by some sources, but not all.
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human acinar cells
See also
References
1. ^ Histology at OU 51_07 - pyloric stomach
2. ^ Histology at OU 46_03 - sublingual gland
3. ^ Histology at BU 10405loa
2. ^ Histology at OU 46_03 - sublingual gland
3. ^ Histology at BU 10405loa
External links
- acinus at eMedicine Dictionary
- a_09/12107053 at Dorland's Medical Dictionary
Glands (Endocrine, Exocrine) | |
|---|---|
| Classification | mechanism (Merocrine, Apocrine, Holocrine) shape (Tubular gland, Alveolar gland) secretion (Serous glands, Mucous glands, Serous demilune) |
| Ducts | Interlobar duct, Interlobular duct, Intralobular duct (Striated duct, Intercalated duct), Acinus |
Exocrine glands are glands that secrete their products (enzymes) into ducts (duct glands). They are the counterparts to endocrine glands, which secrete their products (hormones) directly into the bloodstream (ductless glands).
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In anatomy, the stomach is a bean-shaped hollow muscular organ of the gastrointestinal tract involved in the second phase of digestion, following mastication. The word stomach is derived from the Latin stomachus, which derives from the Greek word
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The sebaceous glands are glands found in the skin of mammals.
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Locations and morphology
A branched type of acinar gland, these glands exist in humans throughout the skin except in the palms of the hands and soles of the feet...... Click the link for more information.
- ''For other uses of the word, see Scalp (disambiguation)
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The salivary glands in mammals are exocrine glands that produce saliva. In other taxa such as insects, salivary glands are often used to produce biologically important proteins such as silk or glues.
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The tongue is the large bundle of skeletal muscles on the floor of the mouth that manipulates food for chewing and swallowing (deglutition). It is the primary organ of taste. Much of the surface of the tongue is covered in taste buds.
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liver is an organ present in vertebrates and some other animals. It plays a major role in metabolism and has a number of functions in the body, including glycogen storage, decomposition of red blood cells, plasma protein synthesis, and detoxification.
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The lacrimal glands are paired glands, one for each eye, that secrete the aqueous layer of the tear film. They are situated in the upper, outer portion of each orbit.
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Anatomy
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The pancreas is a gland organ in the digestive and endocrine systems of vertebrates<ref name="New Standard" />. It is both exocrine (secreting pancreatic juice containing digestive enzymes) and endocrine (producing several important hormones, including
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Alveolus (plural alveoli, adjective alveolar) is a general anatomical term for a concave cavity or pit that may refer to several more specific structures:
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- In anatomy:
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The intercalated duct is the portion of an exocrine gland leading directly from the acinus, and to a striated duct.
They are part of the intralobular duct.
They have the thinnest epithelium of any part of the duct system, and the epithelium is usually classified as
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They are part of the intralobular duct.
They have the thinnest epithelium of any part of the duct system, and the epithelium is usually classified as
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University of Oklahoma, abbreviated OU, is a coeducational public research university located in the U.S. state of Oklahoma. Founded in 1890, it existed in Oklahoma Territory near Indian Territory 17 years before the two became the state of Oklahoma.
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Not to be confused with Pillory.
The pylorus (from Greek πυλωρος = "gate guard") is the region of the stomach that connects to the duodenum...... Click the link for more information.
University of Oklahoma, abbreviated OU, is a coeducational public research university located in the U.S. state of Oklahoma. Founded in 1890, it existed in Oklahoma Territory near Indian Territory 17 years before the two became the state of Oklahoma.
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The sublingual glands are salivary glands in the mouth.
They lie anterior to the submandibular gland under the tongue, beneath the mucous membrane of the floor of the mouth.
They are drained by 8-20 excretory ducts.
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They lie anterior to the submandibular gland under the tongue, beneath the mucous membrane of the floor of the mouth.
They are drained by 8-20 excretory ducts.
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Boston University (BU) is a private research university located in Boston, Massachusetts, United States. Although chartered by the Massachusetts Legislature in 1869, Boston University traces its roots to the establishment of the Newbury Biblical Institute in Newbury,
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eMedicine is an online clinical medical knowledge base that was founded in 1996 by Scott Plantz and Richard Lavely, two medical doctors. It was sold to WebMD in January 2006.
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Dorland's is the brand name of several different medical dictionaries and ancillary products, chiefly Dorland's Illustrated Medical Dictionary (currently in its 31st edition) and Dorland's Pocket Medical Dictionary (currently in its 27th edition).
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gland is an organ in an animal's body that synthesizes a substance for release such as hormones, often into the bloodstream (endocrine gland) or into cavities inside the body or its outer surface (exocrine gland).
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Endocrine glands are glands that secrete their product directly into the blood rather than through a duct. This group contains the glands of the Endocrine system.
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External links
- Endocrine+glands at eMedicine Dictionary
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Exocrine glands are glands that secrete their products (enzymes) into ducts (duct glands). They are the counterparts to endocrine glands, which secrete their products (hormones) directly into the bloodstream (ductless glands).
..... Click the link for more information.
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Merocrine (eccrine) is a classification of exocrine glands in the study of Histology.
A cell is classified as merocrine if the secretions of that cell dump directly into the lumen.
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A cell is classified as merocrine if the secretions of that cell dump directly into the lumen.
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Apocrine is a term used to classify exocrine glands in the study of histology. Cells which are classified as apocrine bud their secretions off through the plasma membrane producing membrane bound vesicles in the lumen.
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Holocrine is a classification of exocrine glands in the study of Histology.
Holocrine secretions are produced within the cell followed by the rupture of the plasma membrane, thus releasing the cellular contents into the lumen.
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Holocrine secretions are produced within the cell followed by the rupture of the plasma membrane, thus releasing the cellular contents into the lumen.
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If a gland retains its shape as a tube throughout it is termed a tubular gland.[1] [2]
Tubular glands are further classified as one of the following:
Name Description Location
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Tubular glands are further classified as one of the following:
Name Description Location
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alveolar glands[1] (or saccular glands[2][3], or acinar glands[4], or acinous glands[5][6]).
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Serous glands contain serous acini, a grouping of serous cells that secrete a fluid, isotonic with blood plasma, that contains enzymes such as alpha amylase.
Serous glands are most common in the parotid gland, but are also present in the submandibular gland and, to a far
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Serous glands are most common in the parotid gland, but are also present in the submandibular gland and, to a far
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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.
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A serous demilune is a cap in the shape of a half-moon (hence the name, "demilune") on some salivary glands.
The serous demilune is an artifact from traditional methods of preparing samples. Samples are traditionally preserved and fixed in formaldehyde.
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The serous demilune is an artifact from traditional methods of preparing samples. Samples are traditionally preserved and fixed in formaldehyde.
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In anatomy and physiology, a duct is a circumscribed channel leading from an exocrine gland or organ.
Duct From To Carries
Lactiferous duct mammary gland nipple milk
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Types of ducts
Examples include:Duct From To Carries
Lactiferous duct mammary gland nipple milk
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