(n.) One of the small divisions of a decompound frond or leaf. See Illust. of Bipinnate leaf, under Bipinnate.
(n.) Any one of a series of small, slender organs, or parts, when arranged in rows so as to have a plumelike appearance; as, a pinnule of a gorgonia; the pinnules of a crinoid.
Example Sentences:
(1) Aminergic elements were revealed by glyoxylic acid-induced fluorescence in the branchial nerve, branchial ganglion, branchial vessels, and pinnules in both species.
(2) It was noted in the pinnules that there was a much higher concentration of dopamine than serotonin.
(3) The younger pinnules or tips of A. fiordensis are less than 3% diphenol by weight.
(4) Tactile stimulation of the pinnule evoked a two-component contractile reflex contraction due to activation of the peripheral nerve plexus.
(5) In semi-intact preparations, pinnule contractions and junctional transmissions were then measured during 3-s depolarized pulses to L7 (frequency range = 1-44 per 3-s interval).
(6) Isolated pinnules of the gill of Aplysia contract when dopamine (DA) is perfused through the bath.
(7) As Aplysia age, motor neuronal (L7) elicited gill-pinnule contractions are significantly decreased, as is transmission at pinnule junctions.
(8) A weak or moderate tactile stimulus to the mantle elicits gill contraction (gill-withdrawal reflex) as a component of a more extensive withdrawal response; a stimulus applied directly to the gill elicits a localized response of the gill pinnule (pinnule response).
(9) Peripheral pathways are necessary and sufficient for the pinnule response.
(10) The pinnule often shows irregular, spontaneous contractions which are blocked by high-Mg2+ seawater and 30 mM CoCl2.
(11) The trained animals had (a) significantly higher pinnule contractions, (b) a significantly greater increase in pinnule contractions elicited by increasing L7 spike rates, (c) significantly higher double-spike facilitation, and (d) significantly higher facilitation per spike across the four spike trains below or at pinnule contraction threshold.
Pinule
Definition:
(n.) One of the sights of an astrolabe.
Example Sentences:
(1) Thus, the genetic defect in Pinull is not a complete or partial deletion of the structural gene.
(2) Heterozygotes for Pinull and the common normal allele PiM1 have half-normal serum concentrations of A-1-AT.
(3) A family in which a Pinull allele for alpha-1-antitrypsin (A-1-AT) segregates has been studied in detail.
(4) There are two common deficiency alleles in the European population, proteinase inhibitor (Pi) Z and S. In addition, there are rare Pinull or QO variants which can be difficult to diagnose.