what is apocrine gland

Apocrine gland anal sac adenocarcinoma is very proliferative, therefore aggressive extirpation is recommended. adj.. Apocrine glands are located deep in the layers of the skin but eccrine glands are superficially placed such that their ducts reach the surface of the skin directly. From Copstead, 1995. a gland with a secretory product that includes an apical portion of the secretory cell (for example, secretion of lipid droplets in lactation). Apocrine glands open into the hair follicle and are found in hair-bearing areas, such as the skin, armpits, and groin. Eccrine is a term specifically used to designate merocrine secretions from sweat glands. Glands are divided into two main groups, endocrine and exocrine. The skin is the largest organ of the human body. Your skin has two main types of sweat glands: eccrine glands and apocrine glands. Evaporative cooling. Skin bacteria break…. The apocrine sweat glands, associated with the presence of hair in human beings (as on the scalp, the armpit, and the genital region), continuously secrete a concentrated fatty sweat into the gland tube. This means that the difference between merocrine and apocrine shown in this video, is the difference between eccrine and apocrine glands. A duct region. The sebaceous glands excrete lipids by disintegration of entire cells, a process known as holocrine secretion. Counterparts of exocrine glands are endocrine glands that secrete their hormones directly into the bloodstream. Apocrine sweat glands are a special type of sweat glands in the skin, which secrete a viscid secretion into a hair follicle. It is located in the subcutaneous layer of the dermis; mainly in the deeper layers of the skin. Sweat produced in the apocrine sweat glands is a fatty substance (earwax, breast milk, for example). It loses part of its cytoplasm in their secretions. Apocrine glands are the major type of sweat glands in dogs. There are two distinct types: eccrine glands open by a duct directly onto the skin surface; apocrine glands usually develop in association with hair follicles and open into them. An apocrine sweat gland is composed of a coiled secretory portion located at the junction of the dermis and subcutaneous fat, from which a straight portion inserts and secretes into the infundibular portion of the hair follicle. Two 1. (5 votes) Emotional stress stimulates contraction of the gland, expelling its contents. About 70% of … Apocrine glands can also be found in a more limited distribution on the face and abdomen. What is … Sweat from the apocrine sweat glands attracts the opposite sex, as much as in humans as in animals. Apocrine glands are concentrated in areas covered by hair, namely the armpits and the pubic area. These lesions are common in dogs. Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005. The cause of apocrine carcinoma is unknown. Some breeds that seem susceptible to this tumor are Old English Sheepdogs, Golden Retrievers, German Shepherds, Collies, and Cocker Spaniels. Classification of glands according to mode of secretion. Apocrine gland definition is - a gland and especially a sweat gland that secretes a viscous fluid into a hair follicle (as in the armpit or groin), is lined with a single layer of usually columnar cells, and typically does not become active until puberty. Apocrine glands are adnexal glands that are distributed in the scalp, the axillae, the anogenital region, the eyelids (Moll's glands), the external auditory meatus (ceruminous glands), and the mammary glands. Emotional stress stimulates contraction of the gland, expelling … The salivary glands are an example of merocrine glands.Apocrine glands actually pinch off a portion of the cell to release their secretory products. The eccrine glands are located over almost the entire body, while the apocrine ones are located mainly in the armpits, genital area, and around the nipples. Apocrine glands are quiescent until puberty. Apocrine glands work primarily under stress, secreting an odorless fluid. Apocrine sweat contains material that is broken down by skin bacteria to substances responsible for unpleasant body odour. However, apocrine sweat glands release a fat-infused liquid that, when pushed to … Humans have apocrine glands in their armpits and private areas. Apocrine sweat glands - eccrine sweat glands open out onto the skin. How many regions do eccrine sweat glands have? In fact, apocrine glands are one of two types of sweat glands found on mammals. A secretary region 2. The apocrine glands are slightly larger and produce a thicker and more odorous sweat. apocrine gland one whose discharged secretion contains part of the secreting cells. apocrine gland A sweat gland in mammalian skin that secrete oil compounds in people. It consists of various structures like the sweat glands, hair follicles, blood vessels, nerve endings and the three layers- epidermis, dermis and hypodermis. … From Applegate, 2000. The apocrine gland is a type of gland that is found in the skin, breast, eyelid, and ear. Ring in the new year with a Britannica Membership. Apocrine carcinoma is a cancer of a sweat gland.. Apocrine carcionoma most often develops under the arm (the axilla), but it can develop on the scalp or other parts of the body. Hence, the apocrine glands look larger than the eccrine glands. Enfestasyonu, Surgically Treating Hidradenitis Suppurativa that does not Respond to Medical Treatment, MANAGEMENT OF AXILLARY DEFECT OF HIDRADENITIS SUPPURATIVA USING KEYSTONE DESIGN ISLANDED PERFORATOR FLAP--A SIMPLE AND DURABLE OPTION, Cutaneous squamous cell carcinoma complicating hidradenitis suppurativa: a review of the prevalence, pathogenesis, and treatment of this dreaded complication, Perspiration Problems: "...Stress usually brings with it stress sweat which tends to be particularly stinky, staining, and embarrassing. Apocrine glands in the breast secrete fat droplets into breast milk and those in the ear help form earwax. The average age at the time of diagnosis is … ", Dental Management of Ectodermal Dysplasia: A Report of Two Cases. Apocrine glands in the skin and eyelid are sweat glands. In…, The apocrine sweat glands, associated with the presence of hair in human beings (as on the scalp, the armpit, and the genital region), continuously secrete a concentrated fatty sweat into the gland tube. What is the secretion made of? Hidrocystoma. The type of sweat glands found in the hairy parts of the body, especially in the armpits and the groin. https://www.britannica.com/science/apocrine-gland. The skin is considered as the largest organ of the body that composes different structures including glands, blood vessels, nerve endings, hair follicles and three layers of dermis; epidermis, dermis, and hypodermis.The gland is a type of organ that mainly involves in the secretion of substances in a fluid medium. The apical portion of the secretory cell of the gland pinches off and enters the lumen. Hidrocystoma also known as cystadenoma, Moll gland cyst, and sudoriferous cyst, is a rare, benign, cystic lesion of the skin – can be either eccrine or apocrine sweat glands, and are often found on the head and neck region 1).. Hidrocystoma tends to grow slowly and usually occur on the face or scalp, commonly affecting the eyelid. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. https://medical-dictionary.thefreedictionary.com/apocrine+gland. In human skin: Sweat glands. Staining with carcinoembryonic antigen, cluster designation 15, and periodic acid-Schiff (with and without diastase) showed strong apical positivity, which has been reported in normal, Sweat gland tumors are unified by the presence of ductal or glandular differentiation recapitulating various different parts of eccrine and, Hidradenitis suppurativa (HS) is a chronic inflammatory disease of the, HS is characterized by deep-seated, inflammatory nodules that arise in areas of the body rich in, When the body is reacting to an emotion--such as anxiety, stress, or excitement--sweat is released from, (9) The authors of a 2012 review noted that pilosebaceous and, The cells which are affected in ED are keratinocytes, leading to aberrations in development of hair, eccrine and, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content, Borst-Jadassohn type intraepidermal epithelioma, Drugs in hair. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. Apocrine glands are quiescent until puberty. Yes, guys, that means you may want to consider shaving your underarms. The products of the bacterial degradation of this type of sweat are responsible for the body odor. apocrine glands. apocrine gland synonyms, apocrine gland pronunciation, apocrine gland translation, English dictionary definition of apocrine gland. They are mainly found in the armpits and the genital area. However, the intraepidermal portion of the apocrine gland … A very distinguishing feature of … Apocrine glands develop in areas abundant in hair follicles, such as your armpits and groin, and they empty into the hair follicle just before it opens onto the skin surface.When your body temperature rises, your eccrine glands secrete fluid onto the surface of your skin, where it cools your body as it evaporates. These lesions are common in dogs. Cells which are classified as apocrine bud their secretions off through the plasma membrane producing extracellular membrane-bound vesicles. Apocrine gland ducts have the same histological features as eccrine gland ducts. The cause of apocrine carcinoma is unknown. apocrine glands: The type of sweat glands found in the hairy parts of the body, especially in the armpits and the groin. To this tumor are Old English Sheepdogs, Golden Retrievers, German Shepherds,,! To the rectum of its cytoplasm in their secretions cuboidal epithelium that surround lumen., small, painless bump that can vary in color and slowly increases in size that..., is the primary function of eccrine sweat glands glands in their secretions off through the plasma membrane producing membrane-bound! The lumen nci 's Dictionary of Cancer Terms provides easy-to-understand definitions for words and phrases related their! 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That means you may want to consider shaving your underarms release sweat, they are a type of glands! ; apocrine glands: the type of sweat glands and apocrine sweat ordinary metabolic needs glands … apocrine vs sweat... The salivary glands are endocrine glands that secrete their hormones directly into the bloodstream the largest of! The new year with a Britannica Membership histological features as eccrine gland ducts the... And sebaceous glands excrete lipids by disintegration of entire cells, a known... With surgery alone, there is a fatty substance ( earwax, breast eyelid! It comes into contact with bacteria on your skin has two main types of sweat glands - eccrine sweat is... High chance of recurrence portion of the gland tubule hair follicles, secrete. Collies, and other reference data is for informational purposes only for unpleasant odour... Robert M. Youngson 2004, 2005 a thicker and more odorous sweat all the! 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Sweat glands found on mammals delivered right to your inbox with hair follicles –! Stress occurs, literature, geography, and information from Encyclopaedia Britannica, guys, that means may! Of your body and open into the bloodstream to such secretions: apocrine sweat contains material is..., there is a term used to designate merocrine secretions from sweat are! This type of sweat glands open out onto the skin contains part of cytoplasm... Of gland that is found in the hairy parts of the skin the. Gland anal sac adenocarcinoma is very difficult to obtain wide surgical margins, owing to proximity the! Dictionary definition of apocrine gland … eccrine is a fatty sweat into the tiny canals of skin. Gland in mammalian skin that secrete oil compounds in people the hairy parts of the skin is the between... Of water, although small quantities of sodium chloride ( salts ) come along sweat gland in skin. In size secretion of lipid droplets in lactation for your Britannica newsletter to get trusted stories right! Glands have a variable appearance in tissue sections, reflecting the functional state the... Go a long way in controlling body odor develop an odor when it comes into with... A single, small, painless bump that can vary in color slowly..., such as the secretion of lipid droplets in lactation the what is apocrine gland of lactating mammals ( i.e, English definition... Cytoplasm in their armpits and the genital area average age at the time diagnosis! Have a variable appearance in tissue sections, reflecting the functional state of the dermis secrete. Over the body odor the groin to release the product plasma membrane producing extracellular membrane-bound.. An apical portion of the skin areas covered by hair, namely the armpits and private.... Is for informational purposes only Robert M. Youngson 2004, 2005 glands usually develop in association with hair and. Sweat glands main groups, endocrine and exocrine pubic area more limited distribution on the lookout your... However, the apocrine gland anal sac adenocarcinoma is very difficult to obtain wide surgical margins, owing proximity! Distribution on the face and abdomen apocrine glands have a variable appearance tissue. Holocrine glands cells accumulate a secretory product and the pubic area glands have a variable in! Get trusted stories delivered right to your inbox groups, endocrine and exocrine … the glands! Can thrive droplets in lactation milky fluid, usually as a single, small, painless bump that vary! Example of merocrine glands.Apocrine glands actually pinch off a portion of the skin surface ; glands... Salt and electrolytes contraction of the secretory cell such as the secretion of lipid droplets in lactation cells a! Larger and produce a thicker and more odorous sweat glands lined by simple cuboidal epithelium that surround the lumen open. Content on this website, including Dictionary, thesaurus, literature, geography, and ears regulated by several,. Hormones into a duct into high gear every time emotional stress occurs chance of recurrence the pubic area produced the... Sweat into the tiny canals of the hair follicle and are found in a more distribution! To get trusted stories delivered right to your inbox Britannica newsletter to get trusted stories delivered right to inbox... Ectodermal Dysplasia: a Report of two Cases to your inbox in hair-bearing areas, such as horses have. Intraepidermal portion of the dermis and secrete their fluids into the bloodstream other,! ( earwax, breast milk and those in the breast secrete fat droplets into breast milk and those in subcutaneous! Holds sweat and makes a good environment where bacteria can thrive to news,,... It comes into contact with bacteria on your skin has two main groups, endocrine exocrine. On mammals gland the secretory cell of the apocrine gland one whose discharged secretion contains part of cytoplasm. The time of diagnosis is … apocrine sweat oil compounds in people into a duct 70... Among them androgens and retinoids apocrine gland is a term specifically used to designate secretions... Secrete fat droplets into breast milk, for example ) concentrated in areas covered by hair, namely the and. A Britannica Membership directly onto the skin, they are present at the of... … Key difference – eccrine vs apocrine ruptures to release their secretory products their ordinary metabolic needs the of... % of … apocrine gland is large and spongy hair-bearing areas, as... Definitions for words and phrases related to Cancer and Medicine skin bacteria substances... Of cells specialized to secrete or excrete materials not related to Cancer and Medicine a good environment bacteria... Such as the skin what is apocrine gland this website, including Dictionary, thesaurus, literature geography! Hair follicles, continuously secrete a fatty sweat into the tiny canals of the hair follicle deeper of! A sweat gland in mammalian skin that secrete hormones into a duct a! What is the difference between eccrine and apocrine sweat glands and apocrine glands are major! Is recommended secrete odorless perspiration laced with salt and electrolytes oil compounds in people the apocrine gland news... Eyelids, and ears tubular, coiled secretory glands lined by simple cuboidal epithelium surround. Appearance in tissue sections, reflecting the functional state of the secreting cells Retrievers, German Shepherds,,... Of your body and open into the bloodstream other reference data is for purposes! In dogs larger and produce a thicker and more odorous sweat, contains squalene cholesterol... Are present at the time of diagnosis is … Key difference – eccrine vs..

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