(n.) One of the movable peduncles which, in the decapod Crustacea, bear the eyes at the tip.
Example Sentences:
(1) Similar to intact crayfish, animals with an isolated protocerebrum-eyestalk complex, exhibit competent circadian rhythms in the electroretinogram (ERG).
(2) Animals continued to display escape responses after removal of eyestalks and antennae.
(3) NDH is produced rhythmically in the eyestalk neurosecretory complex, perhaps partly under the control of other clock components elsewhere in the CNS.
(4) The experiments were performed on in vitro X-organ sinus gland neurosecretory systems from the eyestalk of the crab Cardisoma carnifex.
(5) Also, glucose uptake from blood serum, not affected by eyestalk extract (P greater than 0.05), was observed after incubation of total hemolymph in the presence of glucose.
(6) Injection of eyestalk extract into both intact and destalked crabs activated all the enzymes.
(7) The 5HT synthesis inhibitor p-chlorophenylalanine (PCPA; 60 micrograms) or the 5HT receptor antagonist cyproheptadine (CPH; 100 micrograms) caused significant rises in serum ecdysteroids in intact, but not in de-eyestalked, crabs; with four injections over 48 hr, a rise was evident at 12 hr, continued through 72 hr, and returned to control levels within 4 days post-treatment.
(8) The second factor accelerates ecdysis in nonregenerating animals and appears to be produced in the eyestalks.
(9) Injection of 3-OH-K to the eyestalk-ablated crayfish delayed the onset of the first molt and lengthened the interval between the first and second molts.
(10) A peptide was isolated and purified from sinus glands of the lobster, Homarus americanus, that was able to decrease circulating titers of ecdysteroids and increase the molt interval of eyestalk-ablated juvenile lobsters.
(11) Eyestalk ablation did not significantly reduce the molt cycle duration of regenerating animals.
(12) The concentration of haemolymph sugar and hyperglycaemic activity of eyestalk extract was higher during the night (0 h through 8 h) than that noted in day time (12 h).
(13) During intermolt cycle of juvenile females, mandibular glands in the Crab, Carcinus maenas L., show a cyclical behavior which is disturbed by eyestalk ablation.
(14) The well-known defense response of a crab (laterus merus display, LMD) was easily evoked in Carcinus mediterraneus by striking the cephalothoraxic protogastric region between the eyestalks.
(15) One located outside the eyestalks extends the molt cycle to accommodate regeneration.
(16) Eyestalk-intact, but not de-eyestalked, crabs (Cancer antennarius) given five injections of 5-hydroxytryptamine (5HT, 750 micrograms per injection) in 48 hr showed significant reductions in hemolymph ecdysteroid titers within the first 12 hr which continued through Hour 72; the effect was reversible (Hours 72-144).
(17) NDH synthesis takes place with a time constant of approximately 3 hr in cultured isolated segments of central nervous system, being highest in the eyestalk.
(18) Different areas of the crustacean central nervous system: brain, eyestalks and thoracic ganglionic mass biosynthesize and metabolize histamine.
(19) We describe here the anatomy and physiology of interneurons that connect the brain with the medullae terminales or other eyestalk ganglia.
(20) NDH activity was determined in the various parts of the central nervous system of the crayfish, being highest in the eyestalk, gradually diminishing away from the eyestalk, with a cephalo-caudal gradient, being lowest in the abdominal ganglia.
Stalk
Definition:
(n.) The stem or main axis of a plant; as, a stalk of wheat, rye, or oats; the stalks of maize or hemp.
(n.) The petiole, pedicel, or peduncle, of a plant.
(n.) That which resembes the stalk of a plant, as the stem of a quill.
(n.) An ornament in the Corinthian capital resembling the stalk of a plant, from which the volutes and helices spring.
(n.) One of the two upright pieces of a ladder.
(n.) A stem or peduncle, as of certain barnacles and crinoids.
(n.) The narrow basal portion of the abdomen of a hymenopterous insect.
(n.) The peduncle of the eyes of decapod crustaceans.
(n.) An iron bar with projections inserted in a core to strengthen it; a core arbor.
(v. i.) To walk slowly and cautiously; to walk in a stealthy, noiseless manner; -- sometimes used with a reflexive pronoun.
(v. i.) To walk behind something as a screen, for the purpose of approaching game; to proceed under clover.
(v. i.) To walk with high and proud steps; usually implying the affectation of dignity, and indicating dislike. The word is used, however, especially by the poets, to express dignity of step.
(v. t.) To approach under cover of a screen, or by stealth, for the purpose of killing, as game.
(n.) A high, proud, stately step or walk.
Example Sentences:
(1) Regeneration and reorganization of the proximal cut end of the pituitary stalk is demonstrated in Ompok bimaculatus with the aid of in situ staining technique.
(2) Thus, the long stalks of Sk1 or phosphate-starved caulobacters are not merely a function of their longer doubling times.
(3) The mesenchyme surrounding the stalk stains positively for fibronectin.
(4) Do know how much stalking is too much stalking Seven pages into Google is too much.
(5) A rich network of fibers was observed in the median eminence coursing towards the pituitary stalk.
(6) ECF1 is separated from the membrane-embedded F0 by a narrow stalk approximately 40 A long and approximately 25-30 A thick.
(7) Hormone secretion was increased by electrical stimulation of the pituitary stalk at different frequencies.
(8) Furthermore, there were differences between anterior and posterior regions of both slime sheaths and stalk tubes.
(9) Five minutes from time a fat red shirt stalked past making the tosser sign and, for emphasis, yelling: "Fucking wankers!"
(10) Septal release slightly decreased during pituitary stalk stimulation, whereas it did increase during stimulation of the supraoptic region.
(11) It is hemispherical in shape and is located at the end of a 1.5 mm long eye stalk.
(12) Since such rats supposedly have a normal pigment distribution and a normal pattern of decussation at the optic chiasm, this finding appears to undermine the suggested role played by stalk melanin in establishing the laterality of retinal fibre projections in other mammalian species.
(13) As culmination proceeds, pstA cells transform into pstB cells by activating the ecmB gene as they enter the stalk tube.
(14) Other steps, such as the introduction of a national stalking helpline and national revenge pornography helpline have assisted victims.
(15) And we know once they leave, men will follow and stalk them.
(16) The ultrastructure of some aggregating microorganisms, including fungal hyphae and sheath-forming and stalked bacteria, was studied in detail, and several modes of aggregation were suggested.
(17) George, a loner who was said to have stalked and photographed hundreds of women, always maintained his innocence.
(18) • One in 10 women have been stalked by a previous partner.
(19) Police investigating the Virginia Polytechnic Institute and State University massacre, which left 33 dead, mainly students, blamed Cho, a fourth-year English student who lived on the campus, for earlier incidents ranging from stalking women to setting fire to a dormitory.
(20) The editor of the Spectator stalks the corridors reminding all and sundry that the national debt will have risen far faster and higher under Cameron than under Labour in 13 years.