ejaculatory bulb [FBbt_00004962]

Bilaterally symmetric structure with two anterior and two posterior lateral lobes, a sclerotized rod-like apodeme arising from its upper side and muscles fibers radiating from the end of the rod to the side walls. The anterior ejaculatory duct enters the bulb on the upper side and the posterior ejaculatory duct arises between the paired projections on the opposite side. The walls of the bulb consists of a thick columnar epithelium lined with a well developed intima, enclosing a chamber filled with clear viscous fluid.

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ejaculatory bulb

ID: FBbt_00004962

Adult Anatomy

Bilaterally symmetric structure with two anterior and two posterior lateral lobes, a sclerotized rod-like apodeme arising from its upper side and muscles fibers radiating from the end of the rod to the side walls. The anterior ejaculatory duct enters the bulb on the upper side and the posterior ejaculatory duct arises between the paired projections on the opposite side. The walls of the bulb consists of a thick columnar epithelium lined with a well developed intima, enclosing a chamber filled with clear viscous fluid.

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## Classification

Relationships

develops from: presumptive ejaculatory bulb
is part of: ejaculatory duct

Alternative Names

Synonym	Scope	Reference
sperm pump	exact synonym

Parts of ejaculatory bulb (7 total)

Thumbnail	Name	Tags
	ejaculatory bulb apodeme	Adult, Anatomy
	ejaculatory bulb muscle cell	Adult, Muscle
	ejaculatory bulb muscle	Adult, Muscle
	ejaculatory bulb plate	Adult, Anatomy
	semen-secreting cell of the ejaculatory bulb	Adult, Cell

View all 7 results in VFB →

Expression patterns overlapping ejaculatory bulb (12 total)

Thumbnail	Name	Tags
	P{GMR42D04-GAL4} expression pattern	Expression_pattern
	P{GMR42C06-GAL4} expression pattern	Expression_pattern
	P{GAL4-tim.E} expression pattern	Expression_pattern
	P{EcRE.lacZ} expression pattern	Expression_pattern
	P{GAL4-per.BS} expression pattern	Expression_pattern

View all 12 results in VFB →

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c">"develops_from" }, "object": { "symbol": "", "iri": "http://purl.obolibrary.org/obo/FBbt_00110685", "types": [ "Entity", "Anatomy", "Class", "Larva" ], "short_form": "FBbt_00110685", "label": "presumptive ejaculatory bulb" } } ], "xrefs": [], "anatomy_channel_image": [], "pub_syn": [ { "synonym": { "scope": "has_exact_synonym", "label": "sperm pump", "type": "" }, "pub": { "core": { "symbol": "", "iri": "http://flybase.org/reports/Unattributed", "types": [ "Entity", "Individual", "pub" ], "short_form": "Unattributed", "label": "" }, "FlyBase": "", "PubMed": "", "DOI": "" } } ], "def_pubs": [ { "core": { "symbol": "", "iri": "http://flybase.org/reports/FBrf0007735", "types": [ "Entity", "Individual", "pub" ], "short_form": "FBrf0007735", "label": "Miller, 1950, Demerec, 1950: 420--534" }, "FlyBase": "", "PubMed": "", "DOI": "" }, { "core": { "symbol": "", "iri": "http://flybase.org/reports/FBrf0029539", "types": [ "Entity", "Individual", "pub" ], "short_form": "FBrf0029539", "label": "Bryant and Hsei, 1977, Am. Zool. 17(3): 595--611" }, "FlyBase": "", "PubMed": "", "DOI": "" }, { "core": { "symbol": "", "iri": "http://flybase.org/reports/FBrf0075527", "types": [ "Entity", "Individual", "pub" ], "short_form": "FBrf0075527", "label": "Demerec, 1994, Biology of Drosophila. [Facsimile edition.] " }, "FlyBase": "", "PubMed": "", "DOI": "" } ] }

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