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Head of the Spermatozoon
The anterior, usually ovoid, nucleus-containing part of spermatozoa. (NLM, Medical Subject Headings)
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The highest portion of the fibula that articulates with the patella.
The highest portion of the femoral bone that articulates with the acetabulum.
The first region of the epididymis distal to the testis.
Head lice are parasitic wingless insects. They live on people's heads and feed on their blood. An adult louse is about the…
