|| Apocrine glands
|| Eccrine glands
||Present in only limited areas like axilla, pubis, areola and umbilicus.
||Present throughout the body.
||Opens into the hair follicle.
||Opens to exterior through sweat pore.
||Functioning starts only at puberty.
||Function remains throughout the life from time of birth.
||Thick and milky secretions.
||Clear and watery secretions.
||No role in temperature regulation in body.
||Important role in regulation of body temperature.
||During emotional conditions, its secretion increases.
||During increased temperature and emotional conditions, its secretion increases.
||Secretion under hormonal control.
||Secretions under nervous control.
||Sympathetic adrenergic fibers are the main nerve supply.
||Sympathetic cholinergic fibers are the main nerve supply.
||Secretory portion is mostly in subcutaneous layer.
||Secretory portion is mostly in deep dermis.
||Secretions component similar to eccrine gland along with lipids and proteins.
||Secretions contain mostly water, sodium and chloride ions, urea, uric acid, ammonia, amino acids, glucose, lactic acid.
||Simple columnar epithelium makes the secretory unit.
||Mixed clear cells and dark cells make the secretory unit.
||Secretions produce body odor.
||Secretions produce cooling effect in the body.
||Secretory cell has diameter of 800 micrometer.
||Secretory cell has diameter of 500-700 micrometer.
||Diameter of this gland is 80-100 micrometer.
||Diameter of this gland is 30-40 micrometer.
Image source: pinterest
Differences between Apocrine and Eccrine sweat glands