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The Extensor Muscles of the Upper Limb Lie Almost Exclusively

question 158

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The extensor muscles of the upper limb lie almost exclusively in the region of that limb.


Definitions:

Osteons

Structural units of compact bone, consisting of concentric layers of calcified matrix and central canals containing blood vessels.

Diaphysis

Diaphysis refers to the shaft or central part of a long bone, which is composed primarily of compact bone to provide strength.

Articular Cartilage

A smooth, slippery tissue that covers the ends of bones in joints, facilitating movement and absorbing shocks.

Shaft

The long, narrow, central portion of a long bone or hair, differing in structure or composition from the ends or the surrounding parts.

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