The anatomy and functional morphology of the large hermaphroditic duct of three species of Aplysia, with special reference to the atrial gland

Sherry D. Painter, Vivian K. Kalman, Gregg Thomas Nagle, Robin A. Zuckerman, James E. Blankenship

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

The anatomy and functional morphology of the large hermaphroditic duct of three species of gastropod mollusc (Aplysia californica, A. dactylomela, and A. brasiliana) were examined. Each duct is composed of two parallel compartments, the red hemiduct (RHD) and the white hemiduct (WHD), which are distinguishable from the outside of the duct. Four secretory regions, all exocrine in morphology, are recognizable: the RHD secretory epithelium, the atrial gland (or atrial gland‐like epithelium), the WHD secretory epithelium, and the accessory gland of the copulatory duct (AGCD). Of these regions, only the atrial gland (or atrial gland‐like epithelium) contains egg‐laying activity and only the atrial gland (or atrial gland‐like epithelium) is immunocytochemically labeled by serum antibodies generated against low molecular weight. A. californica atrial gland peptides. The RHD is the functional oviduct: the egg cordon passes through a channel lined by the RHD secretory epithelium and bordered by the atrial gland (or atrial gland‐like epithelium); the eggs are separated from both the WHD secretory epithelium and the AGCD by internal folds of the duct. The WHD is the functional copulatory duct: the penis, exogenous sperm, and endogeneous sperm pass directly by the AGCD and in close proximity to the WHD secretory epithelium; they are separated from both the RHD secretory epithelium and the atrial gland (or atrial gland‐like epithelium) by internal folds. The atrial gland (or atrial gland‐like epithelium) is thus not likely to have a prostatic function or to be directly stimulated by the penis during copulation; it may play a role in oviductal function.

Original languageEnglish (US)
Pages (from-to)167-194
Number of pages28
JournalJournal of Morphology
Volume186
Issue number2
DOIs
StatePublished - Jan 1 1985

Fingerprint

Aplysia
Anatomy
epithelium
Epithelium
penis
Penis
Spermatozoa
spermatozoa
Copulation
Gastropoda
Oviducts
Mollusca
oviducts
copulation
Eggs
molluscs
Ovum

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Developmental Biology

Cite this

The anatomy and functional morphology of the large hermaphroditic duct of three species of Aplysia, with special reference to the atrial gland. / Painter, Sherry D.; Kalman, Vivian K.; Nagle, Gregg Thomas; Zuckerman, Robin A.; Blankenship, James E.

In: Journal of Morphology, Vol. 186, No. 2, 01.01.1985, p. 167-194.

Research output: Contribution to journalArticle

Painter, Sherry D. ; Kalman, Vivian K. ; Nagle, Gregg Thomas ; Zuckerman, Robin A. ; Blankenship, James E. / The anatomy and functional morphology of the large hermaphroditic duct of three species of Aplysia, with special reference to the atrial gland. In: Journal of Morphology. 1985 ; Vol. 186, No. 2. pp. 167-194.
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