Anthropology 2229F/G Lecture Notes - Porotic Hyperostosis, Harris Lines, Enamel Hypoplasia

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Published on 18 Jul 2012
Department
Lecture 24 Growth and Development
Growth and Development
o Growth Rate
How fast do people mature? How fast to bones grow?
Must be compared to same stages of life
E.g. Illinois
Pre-Agricultural population vs. Agricultural population
Growth rate slower because the nutrition wasn’t as
good
Hunter-gatherers healthier than early agriculturalists
Bones matured at a faster rate
Suggests adoption of agriculture was not to improve
nutrition, more to increase mass of what you are
producing
o Focusing on specific foods, less wholesome diet
o Stature/Height
Height depends on nutrition
Generally, better fed people are taller
Pre-agriculturalists are taller than early agriculturalists
Difference in the elite?
Elite are taller on average than the commoners, better
access to better food
o Pathologies
Under dietary stress has an effect on your bones
As you grow, you can undergo different stresses (not enough
food, nutritious food, etc.)
Adult bones maintain record of stresses from when they were
younger
Porotic hyperostosis
Skull/cranium
Porous depressions (honeycomb effect)
Expansion of blood forming tissues
Greater need for red blood cells to form this; response
to anemia (iron deficiency)
Occurs in populations whose diets are iron poor
High frequency in populations that are heavily reliant
on maize
o Need fish, meat, etc. to make up for heavy
reliance on maize
Interruptions in Growth of Long Bones
Stop in growth because of poor nutrition/nutritional
stress
Harris Lines
o Lines across long bones
o Differences in density of the bone
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Document Summary

Must be compared to same stages of life. Growth rate slower because the nutrition wasn"t as good. Suggests adoption of agriculture was not to improve nutrition, more to increase mass of what you are producing: focusing on specific foods, less wholesome diet, stature/height. Elite are taller on average than the commoners, better: pathologies access to better food. Under dietary stress has an effect on your bones. As you grow, you can undergo different stresses (not enough food, nutritious food, etc. ) Adult bones maintain record of stresses from when they were younger. Greater need for red blood cells to form this; response to anemia (iron deficiency) Occurs in populations whose diets are iron poor. High frequency in populations that are heavily reliant on maize: need fish, meat, etc. to make up for heavy. Interruptions in growth of long bones reliance on maize. Stop in growth because of poor nutrition/nutritional stress.

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