Peritrophic membrane: a funnel-like extension of the fore-gut, extending back tube-like, through the chylific ventricle in some insects. ❋ John. B. Smith (N/A)
As the liver undergoes enlargement, both it and the ventral mesogastrium of the fore-gut are gradually differentiated from the septum transversum; and from the under surface of the latter the liver projects downward into the abdominal cavity. ❋ Unknown (1918)
The primitive digestive tube consists of two parts, viz.: (1) the fore-gut, within the cephalic flexure, and dorsal to the heart; and (2) the hind-gut, within the caudal flexure (Fig. 977). ❋ Unknown (1918)
The mouth is developed partly from the stomodeum, and partly from the floor of the anterior portion of the fore-gut. ❋ Unknown (1918)
Between the fore-gut and the hind-gut there exists for a time a wide opening into the yolk-sac, but the latter is gradually reduced to a small pear-shaped sac (sometimes termed the umbilical vesicle), and the channel of communication is at the same time narrowed and elongated to form a tube called the vitelline duct. ❋ Unknown (1918)
The intervening mesoderm is pressed aside and the ectoderm comes for a time into contact with the entodermal lining of the fore-gut, and the two layers unite along the floors of the grooves to form thin closing membranes between the fore-gut and the exterior. ❋ Unknown (1918)
The upper part of the fore-gut becomes dilated to form the pharynx (Fig. 977), in relation to which the branchial arches are developed (see page 65); the succeeding part remains tubular, and with the descent of the stomach is elongated to form the esophagus. ❋ Unknown (1918)
It is lined by ectoderm, and is separated from the anterior end of the fore-gut by the buccopharyngeal membrane. ❋ Unknown (1918)
This membrane is devoid of mesoderm, being formed by the apposition of the stomodeal ectoderm with the fore-gut entoderm; at the end of the third week it disappears, and thus a communication is established between the mouth and the future pharynx. ❋ Unknown (1918)
The rudiment of the heart is situated immediately below the fore-gut and consists of a short stem. ❋ Unknown (1918)
In the lateral walls of the anterior part of the fore-gut five pharyngeal pouches appear (Fig. 42); each of the upper four pouches is prolonged into a dorsal and a ventral diverticulum. ❋ Unknown (1918)
The anterior end of the fore-gut is separated from the stomodeum by the buccopharyngeal membrane (Fig. 977); the hind-gut ends in the cloaca, which is closed by the cloacal membrane. ❋ Unknown (1918)
The lung buds meantime have grown out from the fore-gut, and project laterally into the forepart of the pleuro-peritoneal cavity; the developing stomach and liver are imbedded in the septum transversum; caudal to this the intestines project into the back part of the pleuro-peritoneal cavity (Fig. 55). ❋ Unknown (1918)
By the forward growth and flexure of the head the pericardial area and the anterior portions of the primitive aortæ are folded backward on the ventral aspect of the fore-gut, and the original relation of the somatopleure and splanchnopleure layers of the pericardial area is reversed. ❋ Unknown (1918)
By means of it the fore-brain is bent in a ventral direction around the anterior end of the notochord and fore-gut, with the result that the floor of the fore-brain comes to lie almost parallel with that of the hind-brain. ❋ Unknown (1918)
The gullet, crop, and gizzard of an insect, which lie in front of the stomach, are lined by cells derived from the outer skin (ectoderm) which is pushed in to form what is called the 'fore-gut.' ❋ Unknown (1902)
The larval fore - and hind-guts are broken down at the end of larval life and their lining is replaced by fresh tissue derived from two imaginal bands which surround the cavity of the digestive tube, one at the hinder end of the fore-gut, and the other at the front end of the hind-gut. ❋ Unknown (1902)
# -- Various congenital deformities result from interference with the developmental processes which take place in and around the fore-gut. ❋ Alexander Miles (1893)
They lie in the dorsal half of the fore-gut, and this is completely separated from the ventral half by two longitudinal folds ❋ Ernst Heinrich Philipp August Haeckel (1876)
A number of small vascular arches arise on each side from this branchial artery, and form little heart-shaped swellings or bulbilla (m) at their points of departure; they advance along the branchial arches, between the gill-clefts and the fore-gut, and unite, as branchial veins, above the gill-crate in a large trunk blood-vessel that runs under the chorda dorsalis. ❋ Ernst Heinrich Philipp August Haeckel (1876)
Did she [let] u [put it in] her fore-mid-gut-hind-gut ❋ Foremidguthindgut (2018)
