foregut

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fore·gut

(fôr′gŭt′)

1. The anterior part of the embryonic digestive tract of a vertebrate from which the pharynx, lungs, esophagus, stomach, liver, pancreas, and duodenum develop.

2. The first part of the digestive tract of an arthropod or annelid, which includes the buccal cavity, esophagus, crop, and gizzard.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

foregut

(ˈfɔːˌɡʌt)

1. (Zoology) the anterior part of the digestive tract of vertebrates, between the buccal cavity and the bile duct

2. (Zoology) the anterior part of the digestive tract of arthropods

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

fore•gut

(ˈfɔrˌgʌt, ˈfoʊr-)

n.

a. the first portion of the vertebrate alimentary canal extending from the pharynx to the end of the stomach.

b. the first portion of the alimentary canal in arthropods and annelids.

2. the upper portion of the embryonic vertebrate alimentary canal from which the pharynx, esophagus, lungs, stomach, duodenum, liver, and pancreas develop.

Compare hindgut, midgut.

[1885]

Translations

fore·gut

n. intestino anterior, porción cefálica del tubo digestivo primitivo en el embrión.

English-Spanish Medical Dictionary © Farlex 2012

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References in periodicals archive ?

The features and functionality of the foreguts of decapod crustaceans were extensively examined in adult specimens, in the attempt to understand the digestive mechanism of each studied species (Meiss and Norman, 1977; Kunze and Anderson, 1979; Suthers, 1984; Skilleter and Anderson, 1986; Mikami and Takashima, 1993; Pinn et al., 1999; Jha and Homechaudhuri, 2001; Brosing et al., 2002; Castro and Bond-Buckup, 2003).

Information about the morphological development of foreguts and feeding appendages has contributed to the identification of an adequate diet in larval culture and, consequently, increasing the survival rate during the larval development (Nishida et al., 1990; Minagawa and Takashima, 1994; Abrunhosa and Kittaka, 1997a).

Development and functional morphology of the foreguts of larvae and postlarvae of three crustacean decapods/Desenvolvimento e morfologia funcional dos estomagos de larvas e pos-larvas de tres crustaceos decapodes

The total number of blue, lady, and rock crab foreguts examined was 1286.

When foreguts were only partially full, well-digested remains of prey frequently could be identified by pieces of shell or opercula, mandibles (for shrimp), or chela tips and carapace fragments (for crabs) (Elner et al., 1985).

The Hudson-Raritan Estuary as a crossroads for distribution of blue (Callinectes sapidus), lady (Ovalipes ocellatus), and Atlantic rock (Cancer irroratus) crabs

Not surprisingly, longer fish had larger fore- and hindgut masses, but they also had lower %P and higher C:P ratios in their foreguts. Correspondingly, larger foregut masses were lower in %P and hence had higher N:P and C:P ratios; similar trends although with weaker (sometimes nonsignificant) correlations were seen in comparing foregut mass to hindgut chemistry.

Rank order correlations suggested a linear association between the N contents in foreguts and hindguts, but evaluation of the different scenarios in Fig.

CARBON, NITROGEN, AND PHOSPHORUS STOICHIOMETRY OF CYPRINID FISHES

A = the total points for all the crabs and all the prey items in all the foreguts examined;

[b.sub.i] = the number of crabs with foreguts containing prey category i.

Nocturnal occurrence of the swimming crab Ovalipes punctatus in the swash zone of a sandy beach in northeastern Japan

The insects were later dissected using a dissecting microscope and the content of the foregut noted.

The contents of the foregut of non-attracted nymphs and adults were significantly higher than those of attracted nymphs and adults (P>0.005) Mean score was 1.6 [+ o -] 0.19 and 1.5 [+ o -] 0.28 for attracted nymphs and adults respectively while that of non-attracted nymphs and adults was 2.4 [+ o -] 0.25 and 2.6 [+ o -] 0.26.

The attraction of Zonocerus variegatus (Orthoptera: Pyrgomorphidae) to different types of lure

Strahl discovered that the hoatzin (Opisthocomus hoazin) is the only bird known to digest food in the same way as cows, sheep and other ruminants--using bacteria to break down fibrous plant material in a special foregut chamber above its stomach.

15 SCIENCE -- may force researchers to rethink how and why the foregut evolved in the animal kingdom.