Examlex
What unit of bone consists of a central canal (containing blood vessels,nerves,and lymph vessels) surrounded by concentric rings of calcified matrix?
Physical Changes
Alterations in the body's structure or function that can occur due to development, aging, disease, or environmental factors.
Sexual Feelings
Emotions and physical sensations associated with sexual attraction and activities.
Development Stage
A phase of growth or progression in a biological organism, psychological process, or social structure, marking significant transitions or milestones.
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