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Issue
29 — April 2002 |
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Pore
of a sweat gland
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The pore (Porus sudoriferus) is the opening of the secretory duct of the sweat
gland. It is located in the surface of the skin.
Sweat glands (see Illustration in Skin Care Forum No. 25) have a tubular shape.
Each gland consists of a secretory part and an excretory duct. The convoluted
secretory portion of the sweat gland is located immediately below the dermis in
the subcutaneous tissue. It is coiled in itself.
The secretory part of the gland changes into a duct which passes through the dermis
in a relatively straight way. The duct follows a spiral course through the epidermis.
The secretory duct opens into in the surface of the skin (Porus sudoriferus).
On average, the skin produces 500 ml of water per day. Within 24 hours an adult
produces approximately 100 ml sweat if he is not exposed to heat and physical
exercise. Sweat production may rise to over 10 liters per day during strenuous
work or heat exposure.
Source: Ham, A.A.; Histology, J.B. Lippincott Company, Philadelphia/Toronto (1974);
Elementa dermatologica, 1989, p. 62.
