Editing Sweat gland (section)

==Structure==
[[File:Gray946.png|thumb|Body of a sweat gland cut in various directions]]
Generally, sweat glands consist of a secretory unit that produces sweat, and a duct that carries the sweat away. The ''secretory coil ''or base, is set deep in the lower [[dermis]] and [[hypodermis]], and the entire gland is surrounded by [[adipose tissue]].<ref name=grayanat /><ref name=caceci />{{sfn|Kurosumi|Shibasaki|Ito|1984|p=255}} In both sweat gland types, the secretory coils are surrounded by contractile myoepithelial cells that function to facilitate excretion of secretory product.{{sfn|Kurosumi|Shibasaki|Ito|1984|p = 256}}{{sfn|Eroschenko|2008|pp = 222, 226, 228}} The secretory activities of the gland cells and the contractions of [[myoepithelial cells]] are controlled by both the autonomic nervous system and by the circulating hormones. The distal or apical part of the duct that opens to the skin's surface is known as the ''acrosyringium''.<ref name="Bolognia et al">{{Cite book|title = Dermatology. Structure and Function of Eccrine, Apocrine and Sebaceous Glands|last = Bolognia, Jorizzo, Schaffer|year = 2012|isbn = 978-0723435716|pages = 539–544|edition = 3rd}}</ref>

Each sweat gland receives several [[nerve fibers]] that branch out into bands of one or more [[axons]] and encircle the individual tubules of the secretory coil. [[Capillaries]] are also interwoven among sweat tubules.<ref name="kennedy94" />

{| class="wikitable"
|+ Differences Between Eccrine & Apocrine Sweat Glands
! &nbsp; !! Eccrine Glands !! Apocrine Glands
|-
| Overall diameter of secretory coil
| 500-700 [[μm]]
| 800&nbsp;μm
|-
| Diameter of individual secretory tubule
| 30-40&nbsp;μm
| 80-100&nbsp;μm{{sfn|Wilke|Martin|Terstegen|Biel|2007|pp=173, 175}}
|-
| Composition of secretory epithelium
| single layer, mixed clear cells & dark cells
| single layer columnar cells<ref name="Bolognia et al"/>
|-
| Composition of ductal epithelium
| two or more layers of cuboidal cells
| double layer of cuboidal cells{{sfn|Eroschenko|2008|p=228}}
|-
| Duct opens to
| skin surface
| hair follicle, sometimes nearby skin surface
|}