Organ or Tissue Function
piloerection
Subclass of:
Skin Physiological Phenomena; Reflex action
Definitions related to piloerection:
  • Involuntary erection or bristling of hairs.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • (pilomotor reflex) The reflex process in which the arrectores pilorum (hair follicle) muscles contract and cause the hair to stand erect.
    Gene Ontology Dictionary
    Gene Ontology Consortium, 2021
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.