- neck of spermatozoon
- a short portion of the tail of a spermatozoon, just posterior to the head, anterior to the middle piece. Called also connecting piece. See illustration at spermatozoon.
Medical dictionary. 2011.
Medical dictionary. 2011.
spermatozoon — The male gamete or sex cell that contains the genetic information to be transmitted by the male, exhibits autokinesia, and is able to effect zygosis with an ovum. The human s. is composed of a head and a tail, the tail being divisible into a … Medical dictionary
tail of spermatozoon — the flagellum of a spermatozoon, which contains the axoneme; it has four regions: the neck, middle piece, principal piece, and end piece … Medical dictionary
connecting piece — 1. neck of spermatozoon. 2. middle p … Medical dictionary
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sheath — 1. Any enveloping structure, such as the membranous covering of a muscle, nerve, or blood vessel. Any sheathlike structure. SYN: vagina (1). 2. The prepuce of male animals, especially of the horse. 3. A specially designed tu … Medical dictionary
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