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Eccrine Sweat Glands

Have a wide distribution, all across the body, especially in the hands, feet and forehead.

They consist of ducts, which are a downward budding of the skin and secretory coils deep in the skin, which create the sweat.

Function of Sweat Glands:

  • Thermoregulation - control the temperature of the body
  • Emotional response - provide a response to psychological stimulus

Composition of the Sweat

  • Watery clear, hypotonic (neutral) solution
  • Sweat consists of water and salts such as sodium, chloride, potassium, urea, bicarbonate, calcium as well as other excretions from the body such as amino acids

Nervous Control:

  • These glands are under sympathetic nervous control
  • They are activated to prepare the body for physical activity or emergency
  • Stimulated by acetylcholine (a neurotransmitter)
  • Respond to Botox® therapy
  • Can also be controlled by neurosurgery

Other regulating factors include:

  • Hormones,
  • Pyrogens (bacterial toxins),
  • Physical activities,
  • Emotional stimuli,
  • Temperature