What's the difference between carapace and plastron?

Carapace


Definition:

  • (n.) The thick shell or shield which covers the back of the tortoise, or turtle, the crab, and other crustaceous animals.

Example Sentences:

  • (1) The pigment granules within the erythrophores are dispersed out into the dendritic processes of the cells when the isolated carapace is placed in physiological solution.
  • (2) Eye withdrawal in the green crab, Carcinus maenas was conditioned by pairing a mild vibration to the carapace as a conditioned stimulus (CS) with a puff of air to one of the eyes as an unconditioned stimulus (US).
  • (3) In both species, the carapace is heavily pigmented and during the development and translocation of basal cells from the germinal layer of the epidermis, pigment granules migrate towards the surface layers.
  • (4) A prawn of 15 mm carapace length could not eliminate all snails.
  • (5) She said: "Under the carapace of glittering, hedonistic celebrity, the ooze of a very different and more dangerous lifestyle has seeped out for all to see."
  • (6) Population experiments demonstrated that a prawn of 25 mm carapace length could eliminate 95% of a population of 80 snails in a 20-1 aquarium within 20 days and all snails by day 40.
  • (7) Moir also called for "the truth" to emerge "about the exact circumstances of his strange and lonely death" and said: "Once again, under the carapace of glittering, hedonistic celebrity, the ooze of a very different and more dangerous lifestyle has seeped out for all to see".
  • (8) Crustacean remains in one gut content sample included carapace fragments bearing distinctive surface features found on the smaller toxic xanthids, Actaeodes tomentosus and Pilodius areolatus.
  • (9) Based on the low numbers of osteoblasts and osteoclasts in dermal bone of both populations of adult desert tortoises, it appears that the peripheral carapace is relatively inert with very low levels of dermal bone turnover.
  • (10) With the formation of the compound eye and the appearance of the carapace and other body-like structures, marking morphogenesis to the zoeal stage, embryos showed the beginning of a continuous and dramatic increase in ecdysteroid concentrations sustained until larval hatchout.
  • (11) Except for mild osteomalacia, carapaces of adult desert tortoises from the grazed habitat were relatively normal.
  • (12) For some substances (cadmium, bichromate, metavanadate, and bromide) individual growth (carapace length) was found to be a sensitive parameter.
  • (13) Mann called the series What Remains, her point being that death is not an end, that nature goes on doing its work long after the body has become a carapace.
  • (14) The three muscles on each side of the head share a common origin on the carapace and insert dorsally, laterally and ventrally on the eye.
  • (15) To circumvent this drawback in the application of morphometrics to describe 2 dimensional shapes, an alternative procedure based on Fourier analysis was developed and applied to the turtle carapace.
  • (16) Yet what the episode really shows is how much pressure MPs are under without the protective carapace of unity.
  • (17) Prawns greater than 22 mm carapace length could consume snails of any size.
  • (18) The electroretinogram (ERG) waveform of Petrolisthes elongatus is biphasic and transient and does not change with age (monitored as carapace length and weight of the individual).
  • (19) Based on these results, we propose that dermal bone of the peripheral carapace is a poor sample site for evaluating the effects of dietary or environmental conditions on calcified tissues in desert tortoises.
  • (20) He inherited a semi-proportional assembly electoral system that masks a core of partisan pro-Labour self-interest under a carapace of pluralism.

Plastron


Definition:

  • (n.) A piece of leather stuffed or padded, worn by fencers to protect the breast.
  • (n.) An iron breastplate, worn under the hauberk.
  • (n.) The ventral shield or shell of tortoises and turtles. See Testudinata.
  • (n.) A trimming for the front of a woman's dress, made of a different material, and narrowing from the shoulders to the waist.

Example Sentences:

  • (1) The plastron region is composed of elaborate stalked aeropyles above a highly dissected inner reticulum.
  • (2) The plastron region partially encircles the micropyle (anterior end) of the egg and extends along the dorsal surface to the posterior pole; it is delineated laterally by the hatch lines.
  • (3) Rib abnormalities (duplications, fusions, and spurs) were found in 55 of 2,016 plastron roentgenograms, sternal foramina were found in 135, and episternal bones were found in 51.
  • (4) The most useful features are the shape and structure of the plastronic area between the hatching pleats.
  • (5) Included are the gross structure and surface characteristics of the chorion, the basic architecture and internal components of the chorion proper, the location and function of the hatch lines, and the functional morphology of the plastron region as a respiratory structure.
  • (6) The cavity after bathing is subjected to ultrasound cavitation; fibrinous film and gauze plastrons, impregnated with hemostatic sponge, are placed in it with the proximal and distal ends connection to the tubular drainage in order to ensure permanent lavage of cavity with antiseptic solution and active vacuum aspiration of its content with the subsequent application of sutures on the wound, tight bandaging of a limb and its immobilization.
  • (7) Respiration is thought to be facilitated by openings at the base of the anterior pole as well as by openings through the "plastron" around the main body of the shell.
  • (8) Consistent with their primary function as a protective covering, the carapace and plastron are heavily keratinised.
  • (9) Bone cells and osteoid were more common in dermal bone biopsies from the carapace and plastron of captive juvenile desert tortoises than in adult desert tortoises.
  • (10) With consideration for the great variety of the forms of deformity of the plastron, simple and complicated forms of FCD are distinguished.
  • (11) Characteristic changes that can be demonstrated on roentgenograms occur with increasing age in the plastron (chest plate) of humans.
  • (12) The epidermis is much thicker over the plastron of the loggerhead turtle.
  • (13) A large, topographically well-placed Plastron incision, separation and reposition of the m. pectoralis and m. obliquus internus abdominis using cross-stitch sutures, as well as the careful manipulation of tissues, are of great importance.

Words possibly related to "plastron"