Definition of Pallial sinus. Meaning of Pallial sinus. Synonyms of Pallial sinus

Here you will find one or more explanations in English for the word Pallial sinus. Also in the bottom left of the page several parts of wikipedia pages related to the word Pallial sinus and, of course, Pallial sinus synonyms and on the right images related to the word Pallial sinus.

Definition of Pallial sinus

Pallial sinus
Sinus Si"nus, n.; pl. L. Sinus, E. Sinuses. [L., a bent surface, a curve, the folds or bosom of a garment, etc., a bay. Cf. Sine, n.] 1. An opening; a hollow; a bending. 2. A bay of the sea; a recess in the shore. 3. (Anat. & Zo["o]l.) A cavity; a depression. Specifically: (a) A cavity in a bone or other part, either closed or with a narrow opening. (b) A dilated vessel or canal. 4. (Med.) A narrow, elongated cavity, in which pus is collected; an elongated abscess with only a small orifice. 5. (Bot.) A depression between adjoining lobes. Note: A sinus may be rounded, as in the leaf of the white oak, or acute, as in that of the red maple. Pallial sinus. (Zo["o]l.) See under Pallial. Sinus venosus. [L., venous dilatation.] (Anat.) (a) The main part of the cavity of the right auricle of the heart in the higher vertebrates. (b) In the lower vertebrates, a distinct chamber of the heart formed by the union of the large systematic veins and opening into the auricle.
Pallial sinus
Pallial Pal"li*al, a. [L. pallium a mantle. See Pall.] (Zo["o]l.) Of or pretaining to a mantle, especially to the mantle of mollusks; produced by the mantle; as, the pallial line, or impression, which marks the attachment of the mantle on the inner surface of a bivalve shell. See Illust. of Bivalve. Pallial chamber (Zo["o]l.), the cavity inclosed by the mantle. Pallial sinus (Zo["o]l.), an inward bending of the pallial line, near the posterior end of certain bivalve shells, to receive the siphon. See Illust. of Bivalve.

Meaning of Pallial sinus from wikipedia

- The pallial sinus is an indentation or inward bending in the pallial line on the interior of a bivalve mollusk s****'s valves that corresponds to the position...
- species. Bivalves that can withdraw the siphons into the s**** have a "pallial sinus", a sort of pocket, into which the siphons can fit when they are withdrawn...
- ear-shaped protrusions near the hinge line) and scallop s**** lack a pallial sinus. Behaviorally, ****les live buried in sediment, whereas scallops either...
- than the hard clam, usually has a black periostra****, and there is no pallial sinus in the interior of the s****. The hard clam has many alternative common...
- are able to make out the impression of the pallial sinus on the internal face of the valve: the pallial sinus, which is quite deep and prominent in this...
- indicated on the interior of the s**** surface as a pallial sinus, an indentation in the pallial line. In addition, the water flows through incurrent...
- siphons are short and do not extend beyond the edge of the valves. The pallial sinus is small. The gills are large and thick and the visceral m**** is red...
- characterized by thin s****, with flattened ribs and usually rather deep pallial sinus. The four extant species are found in fresh- and brackish-water lakes...
- centre and posterior in right are bifid. The pallial line and adductor scars are distinct. The pallial sinus is U-shaped, not extending beyond the midline...
- ribs, which sometimes bear scales on the anterior margin, and a deep pallial sinus, which extends up to 1/3 of the s**** length. The s**** length is up...