Associations to the word «Zona»

ZONA, noun. A zone or band; a layer.

ZONA, noun. A species of silverside fish (Atheriniformes), Bedotia geayi, from Madagascar, also called red-tailed silverside.

ZONA GLOMERULOSA, noun. The most superficial layer of the adrenal cortex, lying directly beneath the adrenal gland's capsule, and responsible for producing and secreting the mineralocorticoid aldosterone into the blood as part of the renin-angiotensin system.

ZONA INCERTA, noun. (anatomy) A horizontally elongated region of grey matter in the subthalamus, of unknown function.

ZONA PELLUCIDA, noun. (anatomy) A glycoprotein membrane surrounding the plasma membrane of an oocyte

ZONA RADIATA, noun. (biology) A radiately striated membrane situated next to the yolk of an ovum, or separated from it by a very delicate membrane only.

ZONA RETICULARIS, noun. (anatomy) The innermost layer of the adrenal cortex, responsible for the production of precursor androgens including dehydroepiandrosterone and androstenedione from cholesterol.

ZONA, noun. (anatomy) any encircling or beltlike structure.