jet gland
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jet lag — jet lagged, adj. a temporary disruption of the body s normal biological rhythms after high speed air travel through several time zones. Also, jetlag. [1965 70] * * * Period of adjustment of biological rhythm after moving from one time zone to… … Universalium
Jet lag — This article is about the syndrome. For other uses, see Jet lag (disambiguation). Jet lag Classification and external resources ICD 10 G47.2 ICD 9 307.45 … Wikipedia
pineal gland — a small, cone shaped endocrine organ in the posterior forebrain, secreting melatonin and involved in biorhythms and gonadal development. Also called epiphysis. See diag. under brain. [1705 15] * * * or pineal body Endocrine gland in the brain… … Universalium
Cephalopod — Cephalopods Temporal range: Devonian – Recent[1] (Stem groups from Cambrian)[2] … Wikipedia
Melatonin — Not to be confused with Melanin or Melanotan. Melatonin Systematic (IUPAC) name … Wikipedia
endocrine system, human — ▪ anatomy Introduction group of ductless glands (gland) that regulate body processes by secreting chemical substances called hormones (hormone). Hormones act on nearby tissues or are carried in the bloodstream to act on specific target organs… … Universalium
Melatonin — A hormone produced by the pineal gland, melatonin is intimately involved in regulating the sleeping and waking cycles, among other processes. Melatonin supplements are sometimes used by people who have chronic insomnia. Always see your doctor… … Medical dictionary
mollusk — molluskan, molluscan /meuh lus keuhn/, adj., n. mollusklike, adj. /mol euhsk/, n. any invertebrate of the phylum Mollusca, typically having a calcareous shell of one, two, or more pieces that wholly or partly enclose the soft, unsegmented body,… … Universalium
mind, philosophy of — Branch of philosophy that studies the nature of mind and its various manifestations, including intentionality, sensation and sense perception, feeling and emotion, traits of character and personality, the unconscious, volition, thought, memory,… … Universalium
cephalopod — /sef euh leuh pod /, n. 1. any mollusk of the class Cephalopoda, having tentacles attached to the head, including the cuttlefish, squid, and octopus. adj. 2. Also, cephalopodic, cephalopodous /sef euh lop euh deuhs/. belonging or pertaining to… … Universalium
Squid — Taxobox name = Squid image width = 220px image caption = Mastigoteuthis flammea A species of whip lash squid regnum = Animalia phylum = Mollusca classis = Cephalopoda subclassis = Coleoidea superordo = Decapodiformes ordo = Teuthida ordo… … Wikipedia
