2013), and Goniopsis cruentata (Latreille, 1803) (Brachyura: Grapsidae) (Cobo & Fransozo 2005) is classified into four main stages, namely immature (nondifferentiated gonads), rudimentary (filamentous deferent vessels and colorless), developing (visible gonad, vas deferens
can be divided into two regions, deferent vessels start to reel and occupy body cavity, with either translucent or white coloration), and developed (enlarged and threaded gonads, occupying at least a quarter of the thoracic cavity, vas deferens
clearly differentiated into three distinct regions and is milky-white in color).
My own group is working on something called Vasalgel, a polymer gel that blocks or filters out sperm in the vas deferens
The team is still looking to avoid some minimal damage caused by the drug to the tissue of the vas deferens
Testis length, testis circumference, testis weight, testis volume, epididymis weight and vas deferens
length of the control rabbits were not significantly (p > 0.
2] In order to make the procedure non-invasive, the world has experimented with 'high intensity focused ultrasound ablation of the vas deferens
'  and 'non-invasive laser coagulation of the vas deferens
Rarely, the vas deferens
may be congenitally absent (associated with renal agenesis).
8 F = female; M = male; SD = square degree; FPL = average female penis length; RPL = relative penis length index (= FPL-average male penis length x 100); VDS = vas deferens
sequence index; --= no occurrence.
Testis 56 (51-61, n=10) long, maximum width 40 (34-46, n=10) at mid length; vas deferens
looping around left intestinal caecum; seminal vesicle 31 (28-35, n=10) long.
1987) and indices of imposex of Gibbs were estimated as follows: Vas Deferens
Stages Index (VDSI) = ([SIGMA] of degrees of VDS/total number of females analyzed), Relative Penis Length Index (RPLI) = (average pseudopenis length in females/average penis length in males)x100 and Relative Penis Size Index (RPSI) = (average pseudopenis length in females /average penis length in males)3x100 (Gibbs et al.
Laparoscopic herniorrhaphy has several advantages over conventional open herniotomy; most of them related to the evaluation of possible contralateral patent processus vaginalis (PPV) and avoidance of trauma to the vas deferens
and spermatic vessels.
After localizing the vas deferens
, the surgeon opens the layers of the scrotum, dissects the vas deferens
and then ligates or severs both vas deferens
(1-2 cm resection), cauterizes, seals with clips and/or fascia, etc.
In order to obtain optimal tissue quality, the mouse prostate should be dissected en bloc, together with the urethra, bladder, seminal vesicles, ampullary glands, and proximal vas deferens
Testes, vas deferens
, epididymis, prostate gland, and seminal vesicle were isolated from surrounding tissues and placed into tubes.
Congenital unilateral absence of the vas deferens
(CUAVD) is an uncommon anomaly, which may contribute to male infertility and it has been associated with renal agenesis and a variety of other anomalies that was first described in 1870 by Reverdin .
Each testis opened into a long and thin vas deferens
, forming the seminal vesicle, and both seminal vesicles and paired accessory glands terminated into a short ejaculatory duct (Fig.