What are the Most Important Features of Dwarfism?

The Biochemistry Online – Free Online Lectures for Medical, Dental and Allied Health Sciences students by the Biochemistry Club.
  • Dwarfism occurs when there is generalized deficiency of anterior pituitary secretion(pan hypopituitarism) during childhood.
  • All the physical parts of the body develop in appropriate proportion to one another, but the rate of development is greatly decreased.
  • A child who has reached the age of 10 years may have the bodily development of a child aged 4 to 5 years, and the same person at age 20 years may have the bodily development of a child aged 7 to 10 years/
  • A person with pan hypopituitary dwarfism does not pass through puberty and never secretes sufficient quantities of gonadotropic hormones to develop adult sexual functions..
  • In one third of such dwarfs, however, only growth hormone is deficient; these persons do mature sexually and occasionally reproduce.
  • In one type of dwarfism (the African pygmy and the Lévi-Lorain dwarf), the rate of Growth Hormone secretion is normal or high, but there is a hereditary inability to form somatomedin C (IGF-1), which is a key step for the promotion of growth by Growth hormone.
All these lectures are organized and listed in detail in their proper sections. To view these lessons please visit the Hormones and Signal Transduction Section in Biochemistry II. This can be approached by directly clicking the Biochemistry II button or it can also be approached from the drop down menu in Biochemistry II tab. Once you reach the section click the curriculum tab to view the full list in the section.
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