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epiphysis

epiphysis

9.9
A small gland in the brain that makes melatonin to control sleep
  • noun
  • /ˌɛpɪˈfaɪsɪs/
  • Specialized
translation icon : epífisis
  • Scientists study the epiphysis to understand its role in human biology.

Examples

  • The epiphysis produces melatonin, which helps regulate sleep cycles.

  • It also refers to the specific location of the epiphysis (pineal) gland.

    Academic text (2015)
  • Melatonin is secreted by the epiphysis in response to darkness.

Synonyms

pineal gland
vsepiphysis
  • Specialized
5 5.6

A small pea-shaped part of the brain that makes melatonin to help control sleep

gives the exact position beneath the rear corpus callosum
pineal body
vsepiphysis
  • Specialized
1 8.2

A small gland in the brain that makes melatonin and helps control sleep and daily body rhythms

focuses on melatonin secretion rather than rhythm regulation
epiphysis cerebri
vsepiphysis
  • Specialized
9.9

A small gland deep in the brain that makes melatonin

is the same in meaning but uses an alternate scientific name

Compounds

epiphysis cerebri
  • Specialized
9.9

A small gland deep in the brain that makes melatonin

Surface Forms

epiphysis singular
epiphyses plural

Morphology

epiphysis = physis (opaque) = epi + physis

Built from Greek combining forms 'epi-' + 'physis' which are specialized and not familiar to average learners, so the anatomical meaning cannot be derived.

Etymology

The word epiphysis comes from the Greek parts epi- 'on' and physis 'growth', meaning 'a growth upon' something. So the small gland on the brain was called an epiphysis because it looks like a little outgrowth on the brain, and that name is now used for the pineal gland.