proventriculusn.

Brit.

/ˌprəʊvɛnˈtrɪkjᵿləs/, U.S.

/ˌproʊvɛnˈtrɪkjələs/

Inflections: Plural proventriculi.

Origin: A borrowing from Latin. Etymon: Latin proventriculus.

Etymology: < scientific Latin proventriculus (1805 or earlier) < pro- pro- prefix¹ + ventriculus ventriculus n.

Zoology.

1. The narrow glandular first region of a bird's stomach, lying between the crop and the gizzard.

ΘΚΠ

the world > animals > birds > parts of or bird defined by > [noun] > true stomach

proventriculus1809

1809 W. Nicholson Brit. Encycl. II. sig. X/2 There is another glandular and secretory organ, much more common than the crop... This is the bulbus glandulosus (echinus, infundibulum, proventriculus, corpus tubulosum) which is situated before the entrance of the œsophagus into the upper stomach.

1835 R. Owen in Todd's Cycl. Anat. & Physiol. I. 319/1 The proventriculus varies..in form and magnitude in different birds.

1870 G. Rolleston Forms Animal Life Introd. 51 In adult Birds, the digestive tract is characterized..by the presence of a horny beak, and of a muscular gizzard placed posteriorly to a glandular proventriculus.

1886 Athenæum 30 Jan. 171/3 The ostrich's proventriculus.

a1933 J. A. Thomson Biol. for Everyman (1934) I. xx. 568 The stomach..is divisible into an anterior glandular portion (the proventriculus) and a posterior muscular portion (the gizzard). The relative development of these two regions is correlated with the differences in diet.

1994 Animals' Voice Fall 3 (caption) This particular eagle was unable to fly and later died from the toxicity of two lead shots, one in the stomach and one in the proventriculus.

2. In insects and myriapods: an expansion of the oesophagus anterior to the stomach, having thick muscular walls lined with horny prominences and functioning as a valve or as a muscular gizzard. In various other invertebrates: a distinct region of the gut between the mouth or pharynx and the stomach, in some cases functioning as a gizzard or gastric mill.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > division Vermes > [noun] > member of (worm) > muscular crop

proventriculus1836

the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [noun] > internal organ > proventriculus

proventriculus1836

ventriculus1891

1836 Philos. Trans. (Royal Soc.) 126 564 (caption) [Trachea] (e) passes down to the lower part of the proventriculus.

1877 T. H. Huxley Man. Anat. Invertebrated Animals vii. 411 The proventriculus [of the cockroach] leads posteriorly into a narrow, thick-coated canal.

1927 F. Balfour-Browne Insects i. 15 Digestive fluids..pass forward into it from the mid-gut, through a filtering apparatus, the proventriculus or so-called ‘gizzard’.

1960 Jrnl. Parasitol. 46 362 Regurgitation of the blood due to obstruction (blocking) of the proventriculus introduces the plague bacilli into the body of the host.

1993 New Scientist 6 Feb. 33/1 A nitulid [sic] beetle from early Tertiary amber..still contained its proventriculus, the region of the foregut that functions as an accessory chewing apparatus and..a valve controlling the movements of food.

†3. A glandular bulge in the lower part of the oesophagus in some mammals. Obsolete. rare.

ΘΚΠ

the world > animals > mammals > [noun] > parts of > stomach

maweOE

proventriculus1875

1875 C. C. Blake Zoology 52 The proventriculus of the Dormouse and Beaver.

This entry has been updated (OED Third Edition, September 2007; most recently modified version published online June 2022).

单词	proventriculus
释义	proventriculusn. Brit. /ˌprəʊvɛnˈtrɪkjᵿləs/, U.S. /ˌproʊvɛnˈtrɪkjələs/ Inflections: Plural proventriculi. Origin: A borrowing from Latin. Etymon: Latin proventriculus. Etymology: < scientific Latin proventriculus (1805 or earlier) < pro- pro- prefix¹ + ventriculus ventriculus n. Zoology. 1. The narrow glandular first region of a bird's stomach, lying between the crop and the gizzard. ΘΚΠ the world > animals > birds > parts of or bird defined by > [noun] > true stomach proventriculus1809 1809 W. Nicholson Brit. Encycl. II. sig. X/2 There is another glandular and secretory organ, much more common than the crop... This is the bulbus glandulosus (echinus, infundibulum, proventriculus, corpus tubulosum) which is situated before the entrance of the œsophagus into the upper stomach. 1835 R. Owen in Todd's Cycl. Anat. & Physiol. I. 319/1 The proventriculus varies..in form and magnitude in different birds. 1870 G. Rolleston Forms Animal Life Introd. 51 In adult Birds, the digestive tract is characterized..by the presence of a horny beak, and of a muscular gizzard placed posteriorly to a glandular proventriculus. 1886 Athenæum 30 Jan. 171/3 The ostrich's proventriculus. a1933 J. A. Thomson Biol. for Everyman (1934) I. xx. 568 The stomach..is divisible into an anterior glandular portion (the proventriculus) and a posterior muscular portion (the gizzard). The relative development of these two regions is correlated with the differences in diet. 1994 Animals' Voice Fall 3 (caption) This particular eagle was unable to fly and later died from the toxicity of two lead shots, one in the stomach and one in the proventriculus. 2. In insects and myriapods: an expansion of the oesophagus anterior to the stomach, having thick muscular walls lined with horny prominences and functioning as a valve or as a muscular gizzard. In various other invertebrates: a distinct region of the gut between the mouth or pharynx and the stomach, in some cases functioning as a gizzard or gastric mill. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > division Vermes > [noun] > member of (worm) > muscular crop proventriculus1836 the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [noun] > internal organ > proventriculus proventriculus1836 ventriculus1891 1836 Philos. Trans. (Royal Soc.) 126 564 (caption) [Trachea] (e) passes down to the lower part of the proventriculus. 1877 T. H. Huxley Man. Anat. Invertebrated Animals vii. 411 The proventriculus [of the cockroach] leads posteriorly into a narrow, thick-coated canal. 1927 F. Balfour-Browne Insects i. 15 Digestive fluids..pass forward into it from the mid-gut, through a filtering apparatus, the proventriculus or so-called ‘gizzard’. 1960 Jrnl. Parasitol. 46 362 Regurgitation of the blood due to obstruction (blocking) of the proventriculus introduces the plague bacilli into the body of the host. 1993 New Scientist 6 Feb. 33/1 A nitulid [sic] beetle from early Tertiary amber..still contained its proventriculus, the region of the foregut that functions as an accessory chewing apparatus and..a valve controlling the movements of food. †3. A glandular bulge in the lower part of the oesophagus in some mammals. Obsolete. rare. ΘΚΠ the world > animals > mammals > [noun] > parts of > stomach maweOE proventriculus1875 1875 C. C. Blake Zoology 52 The proventriculus of the Dormouse and Beaver. This entry has been updated (OED Third Edition, September 2007; most recently modified version published online June 2022). < n.1809
随便看	zero out zero plane zero point zero population growth zero post zero rating zero sound zero tillage zero tolerance zero waste zero-base zero-based zero-carbon zero-coupon zero-coupon bond zero-defect zero-derived zero-dimensional zero-emission zero-energy zero-field zero-g zero-graze zero-grazed zero-hours