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*ECK rin*
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*AKA* –>
“merocrine glands”
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(ekkrinein –> “secrete”)
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/ˈɛkrən/
/ˈɛˌkraɪn/
/ˈɛˌkrin/
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-‘eccrine glands’ are the major ‘sweat glands’ of the ‘human body’, found in virtually all ‘skin’, with the highest density in ‘palms’ + ‘soles’, then on the ‘head’, but much less on the ‘trunk’ + the ‘extremities’-
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(in ‘lower’ mammals, they are relatively sparse, being found mainly on hairless areas such as ‘foot pads’)
(they reach their peak of development in ‘humans’, where they may number 200–400/cm² of ‘skin surface’)
(they produce a ‘clear’, ‘odorless’ substance, consisting primarily of ‘H2O’ (aka ‘water’) and ‘NaCl’ (aka ‘sodium chloride’))
(‘NaCl’ is reabsorbed in the ‘duct’ to reduce ‘salt loss’, but is dysfunctional in ‘cystic fibrosis’ thus producing ‘salty sweat’)
(they are active in ‘thermoregulation’ by providing ‘cooling’ from ‘water evaporation’ of ‘sweat’ secreted by the ‘glands’ on the ‘body surface’ and ’emotional-induced sweating’ (triggered by ‘anxiety’ / ‘fear’ / ‘stress’ / ‘pain’))
(the white sediment in otherwise colorless eccrine secretions is caused by evaporation that increases the concentration of salts)
(the odour from sweat is due to bacterial activity on the secretions of the apocrine sweat glands, a distinctly different type of sweat gland found in human skin)
(‘eccrine glands’ are composed of an intraepidermal spiral duct, the “acrosyringium”; a dermal duct, consisting of a straight and coiled portion; and a secretory tubule, coiled deep in the dermis or ‘hypodermis’)
(the ‘eccrine gland’ opens out through the sweat pore)
(the coiled portion is formed by single layer of columnar or cuboidal epithelial cells, which are ‘secretory’ in nature)
(the ‘epithelial cells’ are interposed by the ‘myoepithelial cells’)
(‘myoepithelial cells’ support the ‘secretory epithelial cells’)
(the duct of ‘eccrine gland’ is formed by two layers of ‘cuboidal epithelial cells’)
(‘eccrine glands’ are innervated by the sympathetic nervous system, primarily by cholinergic fibers whose discharge is altered primarily by changes in deep body temperature (core temperature), but by ‘adrenergic fibers’ as well)
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(the ‘glands’ on ‘palms’ + ‘soles’ do not respond to ‘temperature’ but ‘secrete’ at times of ’emotional stress’)
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💕💝💖💓🖤💙🖤💙🖤💙🖤❤️💚💛🧡❣️💞💔💘❣️🧡💛💚❤️🖤💜🖤💙🖤💙🖤💗💖💝💘
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*🌈✨ *TABLE OF CONTENTS* ✨🌷*
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🔥🔥🔥🔥🔥🔥*we won the war* 🔥🔥🔥🔥🔥🔥