May 16, 2023
Small tubular structures of the skin that produce sweat are known as sweat glands, sometimes known as sudoriferous or sudoriferous glands, from the Latin sudor'sweat. Exocrine glands, which include sweat glands, generate and exude chemicals onto an epithelial surface through a duct.
Read this blog further to get a quick overview of this important topic for dermatology and ace your NEET PG exam preparation.
Sweat Glands has 2 portions-Coiled portion and Duct portion
|How Do Glands Secrete?|
|Eccrine||Merocrine secretion||Vesicles are formed and fused to cell membrane|
|Apocrine||Apocrine secretion||Apical part of gland is pinched off|
It Has two coiled structures, One below dermis - Sweat gland and Another in Epidermis - Acrosyringium, It Opens directly into the skin
It is Single highly coiled structure which Opens into hair follicle
|Criteria||Eccrine Gland||Apocrine Gland|
|Location||All over body (more on palms and soles)||Axilla, groin, mammary area, umbilicus|
|Type of Secretion||Merocrine||Apocrine|
|Opening||Directly into skin||Into hair follicle|
|Role||Sweating/ Thermoregulation||Body odor (no role in thermoregulation)|
|Onset of Activity||By birth||Puberty (Androgen dependent)|
It is the Most common type of sweat gland disorder, It occurs due to Blockage in the Acrosyringium
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Whole hair unit is affected, not only the apocrine gland.it is a Chronic inflammatory condition also known as Acne inversa (seen at inverse locations to acne) it occurs on the following Site: Axilla, groin, mammary, umbilicus. It mainly affects pubertal age group.
To Remember: Severity staging of HS was given by Hurley
Bridging/ Rope Scars: They are seen because of the sinuses formed, as they leave behind the bridge lines between the follicles.
It is a Rare condition. It is the Disorder of Eccrine sweat glands in which the patient develops skin-colored raised lesions which are Generally Asymptomatic. Most common site of occurrence of lesions is eyelids. These are Benign eccrine sweat gland duct tumors.
This is everything that you need to know about Acanthosis Nigricans for your dermatology preparation. For more interesting and informative blog posts like this download the PrepLadder App and keep reading our blog!
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