Sperm bladdersbulbs see spermatangium

sperm cell A small, usually motile gamete.

sperm conceptacles (ARTHRO: Insecta) In Hemiptera, paired enlargements of the wall of the common oviduct of female Cimicidae.

sperm cyst (ARTHRO: Insecta) A cellular capsule within the testis containing the spermatocytes.

sperm duct (ANN) Ducts or tubes conveying sperm from the male funnels towards the exterior. see spermaduct, vas deferens.

spermiducal glands 1. Glands associated with the sperm ducts of many invertebrates. 2. (ANN) see prostate glands.

spermiducts n.pl [Gr. sperma, seed; L. ducere, to lead] The male gonoducts; spermaducts; spermoducts; vas deferens; sperm ducts.

sperm induction (ARTHRO: Chelicerata) In Arachnida, the passage of spermatozoa from the genital orifice beneath the base of the abdomen into the receptacle in the male palpus.

spermiogenesis n. [Gr. sperma, seed; genesis, beginning] The formation of spermatozoa from the spermatids produced during the meiotic divisions of spermatocytes; sper-mateleosis.

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