![]() Specimens are never shipped in formaldehyde. This solution inhibits decay, fungal and bacterial growth, and prevents desiccation of specimen. Specimens are then stored and packaged in the supplier's non-toxic, non-formaldehyde holding solution. The amount of residual formalin remaining is usually less than 1%, which is in line with the federal OSHA standard for formaldehyde LTL exposure of 0.75 ppm over an 8-hour period. After fixation, specimens go through a series of washes to remove residual formalin. Our supplier utilizes a low concentration (3.7%) to effectively preserve the entire specimen and prevent decay. Please send us a message via Live Chat or give us a call at 80 for more information.įormalin is the most widely used, economical, and effective fixative used in preservation. Some specimens may have a lead time of 4 - 6 weeks before your item is ready to ship. A pail or jar for your specimen will ensure the longevity and usability of your specimen. Plain injected specimens have not been injected with colored latex so the arterial, venous, and hepatic systems are presented in their natural colors.ĭouble injected specimens have been injected with colored latex, resulting in the arterial system appearing red and the venous system appearing blue.Īnatomy Warehouse recommends that you keep your specimen wet with holding fluid every time you use the specimen. Choose between two injection types to fully enhance your hands-on learning experience. This preserved specimen is great for students studying biology, microbiology, anatomy, and zoology as it provides a detailed view of the organ and organ systems that exist also exist in human bodies. This dissection specimen is also great for understanding the physiology, functions, and systems of the mammalian body. Learn about comparative and organ anatomy with this fetal pig dissection specimen by studying the similarities and differences of its internal and external structures against other mammals’, including humans. The pig offers a close comparison to human anatomy, making this specimen a common feature in dissection labs. ![]() The appendix in humans is the evolutionary remains of a larger cecum in human ancestors.Anatomy Lab’s Preserved Fetal Pig Specimen is perfect for studying pig and mammalian anatomy. The cecum is large in herbivores but much of it has been lost during evolution in humans. It houses bacteria used to digest plant materials such as cellulose. The cecum is a blind pouch where the small intestine joins the large intestine. The spleen is an elongate, flattened, brownish organ that extends along the posterior part of the stomach ventral to (above) the pancreas. Lift the stomach and identify this light-colored organ. It extends along the length of the stomach from the left side of the body (your right) to the point where the stomach joins the small intestine. The pancreas is located dorsal and posterior to the stomach. Find the bile duct that leads to the small intestine. This structure stores bile produced by the liver. Lift the right lobe and find the gallbladder. Locate the cecum, a blind pouch where the small intestine joins the large intestine. Find the posterior part of the large intestine called the rectum and observe that it leads to the anus. Identify the small intestine and large intestine. Using a probe, trace follow the esophagus to the stomach. You have already seen how the esophagus leads from the pharynx through the neck region. The word “urogenital” refers to an opening that serves both the urinary (excretory) and the reproductive systems.įigure 20. Esophagus, larynx, trachea, bronchus, and lung. Use your pig and also a pig of the opposite sex to identify the structures in the photographs below. ![]() Obtain a fetal pig and identify the structures listed in figure 1. Use figures 1–4 below to identify its sex. The pig in figure 1 below has its ventral side up. The pig in figure 1 is lying on its dorsal side. If a structure is anterior to another, then it is closer to the head. The following words will be used to help identify the location of structures. Links to high-resolution, unlabeled photographs are also provided for many of the photographs. As a result, a structure shown in one photograph may look different than the same structure shown in another photograph.Ĭlick on any of the photographs to view enlargements. Several different pig dissections were used to obtain the photographs below. The incision can be seen in the first photograph below. An incision was made on the side of the neck to enable the injections. The arteries have been filled with red latex and the veins with blue. The fetal pig that you will dissect has been injected with a colored latex (rubber) compound.
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