Accessory duct

The normal pancreas will form at week 6 from the rotation and fusion of the ventral and dorsal buds. The ventral bud will constitute the posterior and inferior part of the pancreatic head and the uncinate process, while the dorsal bud will constitute the body, tail, and the anterior head. During the 7th week, the main pancreatic duct of Wirsung and the accessory duct (Santorini) will fuse and migrate to the papilla of Vater, close to the common bile duct. 

ERCP is a very useful tool for the evaluation of pancreas divisum. It will show a short duct of Wir-sung, limited to the head of the pancreas, without filling of the main pancreatic duct. The accessory papilla can be cannulated and the accessory duct of Santorini draining the residual part of the gland will be found. 

Table I. Mating Inhibition in Housefly Following Injection of Crude Homogenate of the Male Accessory Duct...

These ventilators can normally be used with limited ducting or accessories. A variation, fitted with a centrifugal fan, is available for more extensive ducting and is often used for duties such as toilet extract in commercial buildings. 

The duct system of the canine pancreas is different from that of the human pancreas. In dogs, the main duct is the accessory pancreatic duct (Ductus pancre-... 

The male reproductive tract consists of the (i) testes, which serve as the site of gamete and steroid hormone production, (ii) excurrant ducts and epididymes for the transport, maturation, and storage of sperm, (iii) accessory sex glands for the production of seminal fluid, and (iv) penis, for copulation and delivery of mature sperm to the female reproductive tract. 

In a rabbit study, hydroquinone at 150 mg kg day produced minimal developmental alterations in the presence of maternal toxicity. The no-observed-effect level for developmental toxicity was 75mgkg day In rat studies, maternal toxic effects from exposure to hydroquinone included changes in the ovaries, fallopian tubes, and menstrual cycle. Postimplantation mortality was also observed in rat studies. Observed paternal toxic effects from exposure to hydroquinone included changes in the testes, epididymis, sperm duct, prostate, seminal vesicle, Cowper s gland, accessory glands, and male fertility index. Further, exposure to hydroquinone produced skeletal malformations in chickens and ocular and skeletal malformations in rabbits. Hydroquinone can induce renal tubule adenomas, bladder carcinomas, hepatocellular neoplasms, and mononuclear cell leukemia in experimental animals. 

The chief items of cost in any suction conveyor system are the powerful exhaust fan required and the tank with its accessories in which the load handled is deposited and these essential appliances are just as costly for a short system as for a long one. The expense entailed for the conveyor duct, intakes, etc., varies, but for all practical purposes the cost of a complete system will be found to vary very nearly directly with its size, diameter of conveyor duct, or conveying capacity. The relative cost of a complete suction conveyor system is then expressed by the equation ... 

The peripheral organ for the olfactory system is the olfactory sensory epithelium, located in the dorsal-posterior portion of the nasal cavity. This epithelium, composed of several different types of cells, contains bipolar neurons (also known as olfactory receptor cells) whose axons extend to the brain and terminate in the main olfactory bulb. The VN organ is also situated in the periphery, and similarly contains several different types of cells, the most numerous being bipolar neurons whose axons terminate in the accessory olfactory bulb. The VN organ opens into the roof of the mouth via a very narrow channel, the VN duct. In snakes the tongue delivers odorants to the opening of the VN duct and, by a mechanism at present not understood, these odorants reach the dendritic tips of the bipolar neurons (Halpern and Kubie, 1980). 

The containment air filtration system consists of two 100 percent capacity supply air handling units, a ducted supply and exhaust air system with containment isolation valves and piping, registers, exhaust fans, filtration units, automatic controls and accessories. The supply air handling units are located in the south air handling equipment room of the annex building. 

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