Remove the stomach and inspect the contents. Just below the celiac trunk is the superior mesenteric artery which supplies blood to the mesentery of the small intestine. Cat veins and arteries diagram. The veins are near them and distinguished by a blue color. The inferior vena cava lies next to the aorta and can be identified by its blue color in injected cats. L gonadal vein: empties into L renal vein. Put a rubber band around the end of the bag (we don't want to "let the cat out of the bag") and put the cats back in your hour's blue container. Equipment Required PC Computer IWX/214 data acquisition unit USB cable IWX/214 power supply PT-104 pulse plethysmograph.
Cm What is the length of the large intestine (does not need to be removed) _______ cm. When dealing with the circulatory system, it is best to think of the vessels like a road map, one vessel leads to another with branches into these two vessels…etc. Note: many of these vessels will be found by locating the organ they are attached to. Cat dissection veins and arteries. Take this time to label the bag with a permanent marker. In addition, if you can receive the specimens early (before you need them), indicate this when placing your order.
Trace the external iliac artery into the leg where it will become the femoral artery. It is important to mention that in this research the S20 23 questionnaires were. R&L middle cerebral arteries. Cat veins and arteries labeled. Using the blunt probe, remove the peritoneum and adventitia to reveal the celiac and superior mesenteric arteries immediately below the diaphragm over the vertebral column. Use colored pins to mark the locations as you find them. To see the vessels that attach to the back of the heart, it is not necessary to remove the heart entirely (in fact, this can make it even more difficult to find the vessels, so removal of the heart at this point is not advised). It had been the best biology lesson of the year.
More photos of the circulatory system can be found in the Cat Vessels Gallery. Instead the subclavian artery attaches directly to the aorta. Students will need to open the thoracic (chest) cavity to reveal the heart and its attached vessels. Cat Dissection | This is a dissection of the cat, showing th…. Eventually it will split and form a Y, with the left external iliac going to the left leg and the right external iliac going toward the right leg. Identify the ascending aorta as it exits the left ventricle follow it to the aortic arch and trace its path into the abdominal cavity where it is referred to as the descending aorta and the abdominal aorta when it is below the diaphragm.. - In cats, there are only two branches off the aortic arch, the brachiocephalic artery (first branch) and the left subclavian artery.
Label each of these structures of the drawing. Sketch and label these structures: 13. L subclavian artery. All aspects of the program that would be used in other Iworx activities are covered. This artery is small and easily broken if you are too rough with the intestines. This will make clean up easier. Here, the pericardium, the membranous sac that surround the heart, has been removed.
Continue to trace the aorta toward the legs. I carefully carried my cat over to the sink and washed off its formaldehyde-soaked fur. The intricacies of an animal body were amazing to observe, from the chambers of the heart to the cortex and medulla of the kidneys. Reproductive System. You will be performing experiments using this software on week 5, week 6, and week 9 Refer to textbook topic- Blood Pressure (Marieb) for the homework assignment due next week. These branches are often named for the organs they connect to, as in this photo showing the splenic (to spleen), the gastric (to stomach), and the mesenteric (to mesentery of small intestine). The liver is the largest organ in the abdominal cavity, and it is divided into lobes. Peel it back to reveal the heart. Images and text Udo M. Savalli. Right brachial artery.
These two large vessels connect the kidney to the aorta and inferior vena cava. Note the atria (R & L) the ventricles and the anterior interventricular artery. Do the ureters enter the bladder at the same spot? Arteries are injected with red latex, and veins are injected with blue latex. Find the three branches of the celiac artery: the hepatic to the cat's R, the splenic (the large central vessel), and to the L, the left gastric. Cardiovascular Models Unlabeled. This is the first part of the cat where actually cutting will take place. After class, I thought about the ethics of what I had just done. After all, the cat was already dead. The last major branch from the abdominal aorta is the inferior mesenteric.
Digestive Model Unlabeled. Intercostal arteries. Return any organs you remove to the cat, you made need them for the final lab test. Follow the innominant to its branches: L & R common carotids, and the R subclavian. Using your scissors, cut open the pericardial sac surrounding the heart to expose the heart and the attached vessels. Reproductive Models Unlabeled. Once the heart is revealed, you can identify the vessels that attach to it.
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