A total of 32 individual ALLN fibers with identified ampullae
were recorded in this study.
While each zooid has an independent heart and an open hemocoelic circulatory system, the entire colony shares a common vascular system that is embedded in the tunic and closed at its periphery by terminal ampullae
, the contractile blind ends of marginal vessels (Fig.
Caption: A shark's snout contains tiny pores, known as ampullae
of Lorenzini, that can sense weak electric fields from prey.
seminis was recovered mainly from ampullae
(60%) and urinary bladder (50%), H.
Then it was inserted directly into wall of the second coiled corner (counting from the ampullae
) of the oviduct with the assistance of Watchmaker's forceps under the other stereomicroscope by his colleague.
This electrosensory system, comprising many individual ampullae
of Lorenzini, is used to detect minute electrical impulses for detection of prey and may also provide geolocation information (Murray, 1962; Kalmijn, 1982; Klimley, 2002).
small, variable in size; elongated, ducts short, embedded in body wall, close to septa 8/9 and 9/10.
Because nearly 100% of the males in the smallest size class sampled (24 mm CL) showed their ampullae
filled with sperm (i.e.
Types of ware include Eastern sigillata A and B, Italian and Gaulish terra sigillata, red- gloss wares of the Pergamon region, lead-glazed ware, and unguentaria and ampullae
. The entries include a description, reference to the site where found, dimensions, and era (when known).
are described in a rare splurge of enthusiastic labelling as having been important in the spread of Christian imagery but the images themselves are totally obscured by the positioning and lighting.
The structure that is analogous to the broad ligament in females is much smaller in males and supports only the ampullae
of the ductus deferens and the vesicular glands.
Electroreceptive animals have a special network of gel-filled sensors called the Ampullae
Spermatophore components show considerable variation with some small males producing large spermatophylaces, ampullae
or sperm numbers, and some large males producing small spermatophylaces, ampullae
or sperm numbers.
Physical labyrinthectomy is a surgical procedure in which the surgeon removes the inner ear contents, especially the utricle and attached ampullae
. Chemical labyrinthectomy refers to the elimination of the vestibular end organs, especially the utricle and semicircular canals, via transcanal instillation of an ototoxic drug such as streptomycin or gentamicin.
Abbreviations used are: ASC anterior semicircular canal; LSC lateral semicircular canal; PSC posterior semicircular canal; ASCl length of the ASC; ASCw width of the ASC; LSCl length of the LSC; LSCw width of the LSC; PSCl length of the PSC; PSCw width of the PSC; AAP angle between ASC and PSC; APA ampullar line, connecting the centres of the anterior and posterior ampullae
, and projected onto the sagittal plane; ASC-R radius of curvature of the ASC; LSC-R radius of curvature of the LSC; PSC-R radius of curvature of the PSC; SLI sagittal labyrinthine index.