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epiphysis

epiphysis

9.9
The rounded end of a long bone that is separate in children and later joins the main part
  • noun
  • /ɪˈpɪfɪsɪs/
  • Specialized
translation icon : epífisis
  • It is seen in hip conditions including slipped upper femoral epiphysis, developmental dysplasia of the hip, arthritis, muscle disease, and neurological conditions.
  • femoral epiphysis
  • capital femoral epiphysis

Examples

  • Specifically, the Salter-Harris type I fracture of the distal fibular epiphysis, the most common ankle fracture in the preadolescent age group, is commonly diagnosed clinically.

    Academic text (2001)
  • And if you look on this vertebrae, there's a fracture running through the epiphysis of the vertebrae.

  • A metaphyseal fracture occurs between the epiphysis and the diaphysis of a long bone.

    Academic text (2002)
  • At birth, each epiphysis is completely cartilaginous, with the exception of the distal femur.

    Academic text (2006)
  • Conditions such as a slipped epiphysis occur in adolescence and definitely need to be seen by an orthopaedist, or long-term damage can occur to the hip joint.

    Blog text (26)
  • The epiphysis is the rounded end part of a long bone that fuses with the shaft as the bone matures.

  • At the end of each long bone, you will find an epiphysis that is separated from the diaphysis by cartilage.

  • Fractures can occur in the epiphysis of a long bone if excessive force is applied before it has fused.

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

Although etymologically 'epi-' + 'physis' fits the idea of a growth region on a bone, the morphemes are not known to average learners and the term is specialist.

Etymology

The word epiphysis comes from the Greek parts epi- 'on' and physis 'growth', meaning 'a growth upon' something. So the rounded end part of a long bone is called an epiphysis because it is a growth that forms on the end of the bone as you grow.