Brown-Séquard laid stress on the efficacy of emulsions of testis as opposed to chemical substances prepared from the gland.
The testis is single, and its duct opens with the anus, and is provided with a couple of spicules.
There are three pairs of spermathecae situated in segments III-V, a testis in V and an ovary in VI.
Each testis communicates by means of an efferent duct with a common collecting duct of its side of the body, which opens on to the exterior by means of a protrusible penis, and to which is sometimes appended a seminal vesicle.
Development of the Testis and its Associated Structures.
The lengths of the left testisin each of the five males are 11.
The wall of the testis consists of a peritoneal layer and an epithelium, which is folded inwards along transverse lines.
Each testis consists of 30–40 rounded vesicles attached by short tubes to the vas deferens.
In consequence of injury to the specimen which is here drawn, the upper testis (i) displays no seminal tubes.
It not only shows the upper testis perfectly, but also the many times transversely folded, simple, uterine rosette which is certainly not branched.
Ovid similarly calls Vestalis as his witness at vii 3-4 'aspicis en praesens quali iaceamus in aruo, / nec me testiseris falsa solere queri'.
For the device of calling to witness the scenes of military exploits compare Catullus LXIV 357 'testis erit magnis uirtutibus unda Scamandri' and the passages there cited by Fordyce.
Inner aspect of the posterior lobe of the testis from the same example, to shew the vasa efferentia forming a network on the face of the testis.
Two sections shewing the structure and relations of the efferent ducts of the testis in the same example.
Section through the inner aspect of a portion of the testis and mesorchium, to shew the network of the vasa efferentia (nve) becoming continuous with the seminal tubes (st).
Testis and anterior part of Wolffian body of an embryo of Squatina vulgaris.
The left inner gill-plate is also snipped to show the subjacent orifices of the left renal organ x, and of the genital gland (testis or ovary) y.
These forms are hermaphrodite, with an ovary and testis completely separate from each other on each side of the body, each having its own duct and aperture.
The testisof the male lies in the thorax, just below the heart.
The legal maxim, Testis unus, Testis nullus, applies in history as well as in law.
In Aphrophora the follicles of each testis are free, forming a dense cluster, each follicle being connected with the vas deferens by a short duct.
WATER [Illustration: Plate II Male Sexual Apparatus] The outer coat of thetestis is called the tunica albuginea.
Aplysia, whence it passes into the spermatheca, there to await the activity of the female element of the ovo-testis of this second Aplysia.
Attached to it is a diverticulum fl, in which the spermatozoa which have descended from the ovo-testis are stored and modelled into sperm ropes or spermatophores.
But when the male secretion of the ovo-testis is active, the seminal fluid passes from the genital pore along the spermatic groove (fig.
The testis t occupies a median position in the coiled visceral mass.
The seasonal histological changes occurring in the ovary, corpus luteum, and testisof the viviparous lizard, Xantusia vigilis.
Seasonal changes in the testisof the musk turtle, Sternotherus odoratus L.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "testis" in a variety of sentences. We hope that you will now be able to make sentences using this word.
