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Cat Dissection Lab Report Essay

At the conclusion of the cat dissection, you will be required to submit a formal report. The format for this will differ from that of the osteoporosis lab report because the dissection is used as an opportunity to review structure and function for the major systems rather than to test a hypothesis and draw a conclusion. Please the following information as a guideline for compiling the lab report. Only one lab report per group is required. You do not have to answer the questions listed during the actual dissection, but you should be familiar with what is being asked of you before beginning. The lab must be typed and divided into sections according to systems (Meaning each system will be individually labeled like you would label a section of any other lab (materials, methods etc). You may divide the labor among group members, but the work should be compiled as a single document before being turned in. The front page of the lab report should include the names of all group members as well as the date submitted. You do not need a separate title page. Note: If group members are working on sections individually please be consistent with margins (1 inch or less), line spacing (single or 1.5) font size (12pt or less) and font used throughout the document.

The document should not look like it was pieced together randomly at the time of submission. Keep in mind that each group member is responsible for knowing all information in the lab report. Please note that you will be writing about and also observing some systems we have not yet covered. This will require you to reference your book or another source for information to complete the lab report. Please include citations for any sources used (this includes information about systems that have been covered in class). You should consider the assignment an opportunity to begin preparing for the final exam. The hard copy of this report is due to me by Friday, April 15th. (It must also be submitted via turnitin.com before 11:59pm on April 15th) Any time you are asked to diagram the system you are working through, you must label the structures in the diagram. For any of the diagrams in the lab report, you may include pictures (using your phone or a camera) of your dissection instead of an actual drawing. If you choose to take pictures of the cat, you may label the structures with tags and dissecting pins at the time of dissection if time permits or you may go back and label the pictures after pasting them in your report. The photos may be embedded into the associated sections or attached at the end of the document as an appendix. Hand-drawn diagrams will have to be attached at the end as an appendix. If your diagrams will be in an appendix, they should be referenced in the appropriate section.

The lab report should look like this: (It will be longer than three pages!)

Essential System Structures to Include :
Spleen, bone marrow, lymph nodes, thymus gland, tonsils
Mouth/tongue, pharynx, larynx, Esophagus, stomach, S.I., L.I., rectum, salivary glands, liver, gallbladder, pancreas Cardiovascular
Heart, aorta, vena cava, pulmonary arteries, pulmonary veins, coronary arteries, cardiac veins, brachial artery & vein, carotid artery, jugular vein, renal vein, iliac artery & vein, femoral artery & vein, hepatic portal system Urinary

Kidneys, ureters, bladder, urethra
Larynx, Trachea, Bronchi, Lungs (bronchioles & alveoli)

External Features
Discuss two interesting observations/discoveries (2)
Define: vibrissae, pinnae, tori (3)

Distinguish between the axial and appendicular skeleton in terms of structure and function (4)


(NOTE: Includes questions about endocrine & lymphatic systems) Describe two interesting observations/discoveries; take note of muscle layers. (2) Define: tendon, origin, insertion and superficial fascia (4) Explain the purpose of both thyroid gland and lymph nodes (4) Describe how the endocrine system works as one of the two major controlling systems in the body. Be sure to discuss its means of communication, length of effect and response time. In addition, outline an example of a feedback mechanism involving the endocrine system. (4) Identify the main structures of the lymphatic system and describe their functions. (3)


(NOTE: Questions may be grouped together and do not need to be answered in the order listed). Describe two interesting observations/discoveries (2)
Diagram labeled with major digestive structures/organs (5)
Describe the functions of the major digestive organs (6)
Describe the diaphragm and identify its function (2)
Identify the location & function of the epiglottis. (2)
What is peristalsis and what is its function? (2)
Explain the function of sphincters and identify some places they are located. (2) What is chyme? How is it produced? (2)
Why are the small and large intestines labeled as they are? (2) Where is the gallbladder in relation to the liver? Why? (2) Explain the importance of bile. How and at what point does it enter the digestive system? (2)

Describe two interesting observations/discoveries. (2)
Diagram the Respiratory System. (3)
Describe the functions of the structures of the respiratory system (3)

Diagram of the heart (Include chambers, valves & major vessels) (6) Diagram
tracing the path of circulation in the adult mammalian heart. You may do a separate flow chart or build this off of your heart diagram. (5) Describe two interesting observations/discoveries. (2)

Discuss the structures of the Cardiovascular System (including major veins & arteries serving the body) & describe their functions/locations served. (9) How are blood vessels named? (2)

Describe two interesting observations/discoveries. This would be an ideal place to discuss reproductive structures. (2) Diagram the urinary system – four structures to include. (2) Describe the function of each urinary structure. As in the labeling, there are four main structures that you need to include in the answer to this question. (2)


Describe how the nervous system works as one of the two major controlling systems in the body. Discuss its means of communication, length of effect, and response time. Outline an example of a feedback mechanism involving the nervous system. (4) Describe the difference between the central and peripheral nervous system in terms of function and structures. Describe the pathway that communication within the nervous system would follow from a receptor to an effector. (4) NOTE: We will not be looking a nervous system structures. If time permits, you may attempt to extract and view the brain. If you choose to do so, please note that opening the skull is often a difficult task, especially avoiding damage to the brain in the process. Please use extreme caution.)

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