Juvenile ageing

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Author:
kevindevriendt
ID:
178891
Filename:
Juvenile ageing
Updated:
2012-10-31 00:04:53
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Juvenile ageing
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Juvenile ageing
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  1. age =

    everyone has (3)
    multi faceted concept

    • chronological age - based on calendar year
    • biological age - based on biological changes in body
    • socio-cultural age - based on socio-cultural definitions
  2. Human life cycle consists of several stages: what are they?
    • 1) Prenatal - begins with conception and ends with birth (bone measurement)
    • 2) infancy - when baby is nursing (bone length, dental development and bone development)
    • 3) Childhood- from weaning to pubery (all of above plus epiphyseal fusion)
    • 4)adolescence - puberty to end of growth (ageing mostly done by epiphyseal fusion, some dental)
    • 5) Adulthood- completion of growth (epiphyseal fusion, senescent bone changes, dental attrition)

  3. Aim to to obtain ______age objective is to estimate ______age
    • Chronological
    • biological - caused by growth, development maturation and degeneration
  4. Growth and development?

    Maturation?
    growth and development = sequence of events: structures apprear and generally increase in size

    Maturation= structual change of existing skeletal features
  5. Growth begins at ___a___ and continues until late __b__ or early _c____

    Occurs very quickly during first __d.___wekks of foetal development and slows during the last _e.___weeks
    • a. conception
    • b.adolescence
    • c. 20's
    • d.24
    • e.12
  6. Growth rate of a person.
  7. growth spurt occurs __? earlier in 
    2 years 
  8. differentiate between
    Embryo
    Foetus
    Perinate
    Neonate
    Infant
    • embryo - first 8 weeks intra-uterine life
    • foetus - 8weeks until birth
    • perinate - around time of birth
    • neonate - first 4 weeks after birth
    • infant - birth till 1 year
  9. differentiate between
    early childhood
    late childhood
    early adolescence
    late adolecence
    juvenile
    • early childhood- 1-5yrs
    • late childhood 6-10 yrs
    • early adolescence - 10-14 yrs
    • late adolescence - 15-17 yrs
    • juvenile < 18yrs
  10. which two stages of juvenile development ahve very accurate bone length for age determination

    what kind of relationship is between age and length?
    Foetal and Neonatal

    linear relationship b/w age and length
  11. As child ages more variation occurs in -_____ due to ___ ____
    As child ages more variation occurs in long bone length due to outside influences
  12. Fusion of ______centers follows time schedule that can be equated to ____

    used in juvenile ___,____.____,___
    • Ossification 
    • Age
    • skull,mandible,atlas and axis
  13. Age of fusion?

    metopic sutre
    posterior fontanelle
    anterior fontanelle
    sphenoid and mastoid fontanelle -
    • metopic sutre -2-4 years
    • posterior fontanelle 6 months
    • anterior fontanelle-1-2 years
    • sphenoid and mastoid fontanelle -after birth
  14. Epiphyseal fusion most useful for estimating ages of individuals between ___&____yes
    10-25 yrs
  15. teeth grow starting with ___ of cusps and finishing with ___
    • Tips
    • roots
  16. what is the most accurate ageing method for juveniles?

    why?

    who compiled data?
    tooth formation

    teeth not affected by environmental factors, malnutrition, or developmental disturbances like skeletal growth

    smith (1991)
  17. when tooth roots ___ to ___ complete teeth ___ into position im mouth

    ages of  eruption is ____ specific
    0.5, 0.75, erupt

    population specific

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