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Descriptor English: Activity Cycles
Descriptor Spanish: Ciclos de Actividad
Descriptor ciclos de actividad
Scope note: Fases de irritabilidad física o movimiento que alternan con periodos de quiescencia. Comprende la actividad bioquímica y hormonal que pueden ser celulares. Estos ciclos duran menos de 24 horas y comprenden los ciclos de sueño-vigilia y la activación periódica del aparato digestivo.
Descriptor Portuguese: Ciclos de Atividade
Descriptor French: Cycles d'activité
Entry term(s): Activity Cycle
Cycle, Activity
Cycles, Activity
Tree number(s): G07.180.562.797.500
RDF Unique Identifier: https://id.nlm.nih.gov/mesh/D000204
Scope note: Bouts of physical irritability or movement alternating with periods of quiescence. It includes biochemical activity and hormonal activity which may be cellular. These cycles are shorter than 24 hours and include sleep-wakefulness cycles and the periodic activation of the digestive system.
Allowable Qualifiers: DE drug effects
ES ethics
GE genetics
IM immunology
PH physiology
RE radiation effects
Public MeSH Note: 91; was see under CIRCADIAN RHYTHM 1975-90
Online Note: search CIRCADIAN RHYTHM 1968-74
History Note: 91(75); was see under CIRCADIAN RHYTHM 1975-90
DeCS ID: 213
Unique ID: D000204
NLM Classification: QT 167
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 1991/01/01
Date of Entry: 1999/01/01
Revision Date: 2016/03/09
Activity Cycles - Preferred
Concept UI M0000317
Scope note Bouts of physical irritability or movement alternating with periods of quiescence. It includes biochemical activity and hormonal activity which may be cellular. These cycles are shorter than 24 hours and include sleep-wakefulness cycles and the periodic activation of the digestive system.
Preferred term Activity Cycles
Entry term(s) Activity Cycle
Cycle, Activity
Cycles, Activity



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