In one single specimen, I succeeded in isolating a vesicula seminalis of small size, containing perfectly distinct spermatozoa.
The eye lies on the line of junction between the testis and the vesicula seminalis, and on their ventral side.
Two main ducts generally unite just before entering the broad, often reflexed, end of the vesicula seminalis: in Coronula balaenaris, however, I observed four ducts entering this receptacle.
By dissection I more than once distinctly traced the vesicula seminalis entering the broad lower end of the penis.
Until dissecting this chord, I thought it was a single vesicula seminalis, but it separated into several rather thick ducts or vesiculae.
In accordance with the immature state of the contents of the ovarian sack, in all probability these ducts would hereafter have become greatly enlarged, and have formed a compound vesicula seminalis of considerable size.
The vesicula seminalis, in which the seminal fluid is stored, is situated, as will be remembered, at the base of the bladder.
Here the vas deferens joins with another duct which communicates with an elongated pouch, the vesicula seminalis, which lies close upon the under side of the bladder.
Within the tegumentary thickenings just described, there appear in the male Cockroach two anterior closed cavities which unite to form the single cavity of the permanent mushroom-shaped body (vesicula seminalis).
A third smaller instrument, f f, is seen to pass out of the urethra anterior to the prostate, and after transfixing the right vesicula seminalis external to the neck of the bladder, enters this viscus at a point behind the prostate.
By the vesiculaand the prostate the spermatophores are formed.
The vas deferens is at first narrow and convoluted, then dilates into a vesicula seminalis at the end of which is a glandular diverticulum called the prostate.
It is a small, flask-shaped vesicle without any physiological significance, which opens into the ureter between the two spermaducts and the prostate folds (vesicula prostatica).
The vesicula umbilicalis and allantois, being essentially connected with the earliest grades of foetal development, will be considered under that head.
The duct of the vesicula umbilicalis, dividing into two intestinal portions; and besides this duct are two vessels which are distributed upon the vesicula umbilicalis, and form a reticular anastomosis with each other.
In the early periods of pregnancy it also consists of the duct and vessels of the vesicula umbilicalis, the urachus, and more or less of the intestinal canal.
Vesicula umbilicalis already passing into the ventricular and rectum intestine at g.
Its earliest source of nourishment is doubtless the vitellus, or albuminous contents of the vesicula umbilicalis.
In birds, the covering of the vitellus is called yelk-bag; whereas, in mammalia and man it receives the name of vesicula umbilicalis.
The vesicula umbilicalis may still be distinguished in the second month as a small vesicle, not larger than a pea, near the insertion of the cord, at the navel, and external to the amnion.
If I am right in believing that only a single vesicula seminalis is ordinarily developed in the male, this is a special and singular character.
I presume this is caused by endosmose; nevertheless it deserves notice, that it was in these protruded specimens that the vesicula seminalis was most conspicuously gorged with spermatozoa.
By using a condenser and very brilliant light, the outline of the vesicula seminalis could sometimes be distinguished before dissection, at the bottom of the sack-formed animal; and such was the case in the specimen drawn in fig.
The thorax, into which I traced the vesicula seminalis, no doubt also serves for the emission and first direction of the spermatozoa; and hence, perhaps, its singularly extensible structure.
This cenogenetic gastrocystis and the palingenetic blastula are sometimes very wrongly comprised under the common name of blastula or vesicula blastodermica.
This is especially clear in the case of those mammals in which the true female uterus bifurcates, for in the males of these the vesicula likewise bifurcates.
The vesicula prostatica, which has been observed in many male mammals, is now universally acknowledged to be the homologue of the female uterus, together with the connected passage.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "vesicula" in a variety of sentences. We hope that you will now be able to make sentences using this word.
