Einzelne Zellen, Zellgruppen oder Organe, die bestimmte Wirkstoffe (z.B. Enzyme, Hormone) produzieren und absondern.
Wichtige Drüsen des Menschen sind beispielsweise Leber, Bauchspeicheldrüse, Magendrüsen, Hirnanhangsdrüse, Schilddrüse, Eierstöcke und Hoden.
Sinonimi: secretory organ
ETYM French glande, Latin glans, glandis, acorn.
Specialized organ of the body that manufactures and secretes enzymes, hormones, or other chemicals. In animals, glands vary in size from small (for example, tear glands) to large (for example, the pancreas), but in plants they are always small, and may consist of a single cell. Some glands discharge their products internally, endocrine glands, and others, exocrine glands, externally. Lymph nodes are sometimes wrongly called glands.
Any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream; SYN. secretory organ.
(Veterinämedizin) Infektionskrankheit der Pferde; Entzündung der Nasenschleimhäute, Vereiterung der Lymphknoten.
(Mineralogie) Gesteinshohlraum mit Schalen aus kristallisiertem Quarz, Kalkspat, Aragonit u. Zeolithen.
ETYM French géode, Latin geodes, from Greek gea the earth + eidos form.
Cavity in stone lined with crystals.
1. A nodule of stone, containing a cavity, lined with crystals or mineral matter.
2. The cavity in such a nodule.
In geology, a subspherical cavity into which crystals have grown from the outer wall into the center. Geodes often contain very well-formed crystals of quartz (including amethyst), calcite, or other minerals.
ETYM Latin, from impetere to attack.
A very contagious infection of the skin; common in children; localized redness develops into small blisters that gradually crust and erode.
Skin infection with either streptococcus or staphylococcus bacteria, characterized by encrusted yellow sores on the skin.
Particularly common in infants and small children, it is highly contagious but curable with antibiotics.
Pustulous skin disease.