Midlands Region Cell Leader Training Day

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Growth and Ageing
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Growth

• Growth occurs during gestation, childhood and
  adolescence.
• Growth rate change in size per unit time.
• Growth curve when growth rates are plotted
  graphically.
• Humans have two growth spurts, one between 0-2
  years called the infant growth spurt and one
  during puberty known as the pubertal growth spurt.

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Growth
Allometric Growth is the differential growth of
body parts. This causes our body proportions to
change between infancy and adulthood.
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Growth
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The Pituitary Gland
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Growth Hormone
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Puberty
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Puberty
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Growth
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Ageing

• Senescence is the deterioration of bodily
  functions and the appearance of features
  associated with old age. It is usually
  investigated by one of the following techniques
• A cross sectional study. This involves studying
  large samples of people at several ages. In the
  case of research into ageing measurements of
  physical and physiological features are taken and
  averages for the different age groups
  established.
• A longitudinal studies. This involves studying
  a small sample of people and following the
  individuals over time.

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Ageing
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Ageing
Remember collagen is a fibrous protein
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Ageing