Cow Eye Dissection Introduction: The eye is a special sensory organ with a complex structure and function. The objective was to gain a better understanding of the structure and the function of the eye. In this lab, we set out to dissect a cow's eye and identify the different parts of the eye. We did this by removing the fat and muscle surrounding the eye to reveal the sclera, and be able to make an incision in the middle of the eye to reveal the inner parts of the eye; the vitreous humor, ciliary body, choroid and retina. Once all the parts were identified, we received a clearer understanding of how each part of the eye affected the whole eye.
4. Identify each of the following in a lymph node: afferent lymphatic vessels and efferent vessels. a. afferent lymphatic vessels b. efferent lymphatic vessels c. What is the function of the macrophages within the lymph nodes? The macrophages within the lymph nodes filter lymph and remove bacteria and cellular debris before lymph is returned to the blood. d. Identify spleen functions.
A kinses behavior is their activity rate. Sowbugs when given different variables will show taxis and kinses towards then and that was the true purpose to this lab. When tested in their behavior chambers the sowbugs will choose the variables most like there natural environment. Scientific Drawing: See attached. Answers to Questions (1-9) 1) They sense with their antennas 2) Yes 3) Yes 4) 2 5) 14 legs 6) Some crawl on top of others, but does not matter in size 7) Gills 8) They molt their exoskeletons.
ANS -D: The temporo mandibular jo int receives blood fro m the arteries near it , which includes the external carotid and its terminal branches since the external carot id artery terminat es in the neck of the condyloid process of mandible. 1 5. ANS -D: The top of the skull appears rounded, whereas the sides appear flattened after the zygomat ic arches are removed. The p art of the skull just med ial to the zygomat ic arch is a depression. This flattened part of the skull and the depressed region above the zygomatic arch constitute the temporal fossa which in life is occupied by the temporalis muscle.
Next we made and incision to the abdominal cavity, using a scalpel to expose the internal organs. After identifying all of the organs of the fetus’ body we started to remove the organ that we used for testing. The first we removed was the heart. We removed the heart using a scalpel and weighed the heart. We then compared the weight of our pig’s heart to three other fetal pigs.
Anatomy and Physiology Task 1 1. Discuss your dissection of the sheep heart and the cardiovascular system of the fetal pig by doing the following: a. Describe the similarities and differences between the fetal pig heart and the sheep heart. Differences: 1. Size 2.
I am then placed near the intended anastamose site and measured for a tailor fit, paying special attention to positioning. If I am asked to lay to close to the skin, skin ischemia may occur along with an increased chance of infection. Place me too deep, and I can get pretty slippery as you enter the cannulation stage of the procedure. Gore-Tex Propaten Grafts are known to be quite ticklish and my inadvertent kicks and punches can cause perigraft hematomas when placed this far down. Once all modifications are made to ensure proper placement and fit, and verifying that I will not hit by a flash flood of blood from the artery which I will soon be a part of, the suturing process may begin.
Several can cause human diseases that can damage us instead of helping us. Side effects cannot be detected in animals. Animals deliver data; nevertheless it’s the wrong data or different data. Humans need more precise, operative and safe results. According to the book of evolution by Charles Darwin, Humans came from monkeys; on the other hand certain test that applies to monkeys does not apply to humans.
This report will demonstrate the differences of the treatment of animals comparing cultures. It will also point out how all mammals are affected by the different treatments of animals. Scientific Classification The scientific classification Mammalia is known as mammals. Mammals are any warm-blooded vertebrate animal. Mammals are also characterized by having hair on the skin and the female having milk-producing mammary glands that are used to nourish the young.
Discuss the use of animal and ethics in research. Using animals in research is a concern to some; however, the benefits derived from the ethical, humane use of laboratory animals for biomedical research are huge. Where animals are used in research projects, they are used as part of a range of scientific techniques. These might include human trials, computer modeling, cell culture, statistical techniques, and others. Animals are only used for parts of research where no other techniques can deliver the answer.