Describe the Differences Between the Bones of the Lower and Upper

question 85

Essay

Describe the differences between the bones of the lower and upper limb and briefly state why these differences exist.

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Definitions:

Igneous Feature

A geological structure formed from hardened lava or magma, such as a volcano or granite intrusion.

Dike

A sheetlike intrusion that cuts across any layers in a host rock, commonly formed with a steep orientation.

Sill

A tabular igneous intrusion that parallels layers or other planar structures of the surrounding rock and which usually has a subhorizontal orientation.

Laccolith

A bulge-shaped igneous body that has domed and tilted overlying layers and that is observed or interpreted to have a relatively flat floor.