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Virtual Pig Dissection Part I Go to the following website: http://www.whitman.edu/biology/vpd/main.html READ EVERY SECTION OF THIS TUTORIAL THAT I TELL YOU TO READ COMPLETELY, AND FOLLOW EVERY PART OF THE INSTRUCTIONS. YOU ARE RESPONSIBLE FOR KNOWING THIS INFORMATION - EVEN THE INFORMATION THAT DOESN’T HAVE A QUESTION ABOUT IT. THIS WILL HELP YOU GET ACQUAINTED WITH THE FETAL PIG BEFORE YOU START DISSECTION!!! Under the section heading "Virtual Fetal Pig Dissection" click on "anatomical reference." Complete the sections "Regions of the Pig," "Anterior/Posterior," and "Dorsal/Ventral." Under the section heading "Quizzes," click on "anatomical references" and complete. Under the section heading "Study Guides" click on "sexing your pig." Complete the sections "Is it a male?" and "Is it a female?" Complete the following questions with information you learned: 1. Name the structure that only females have beneath the tail. 2. Click on the caudal region of the picture of the male female pig. What are the two ways to tell if your fetal pig is a male? Under the section heading "Quizzes," click on "sexing your pig" and complete. Under the section heading "Study Guides" click on "digestive system." There are two regions of the fetal pig that you can click on - CLICK ON THE HEAD FIRST and examine the parts!!! Complete the following questions: 1. What is the function of the nares (nostrils)? 2. What is the function of the hard palate, and what is it made out of? 3. Why is it important that the epiglottis helps to close the trachea during swallowing? 1 Next, on the picture of the fetal pig, find the abdominal region - CLICK ON THE ABDOMINAL CAVITY and examine the parts!!! Complete the following questions: 1. In a fetal pig, how long can the small intestine be? 2. What does the small intestine do? 3. Is the large intestine longer or shorter than the small intestine? 4. What does the large intestine do? 5. Locate the gall bladder on the underside of the liver. What does the gall bladder release to aid the digestion process? 6.___________________ The is a muscle that separates the______________________ cavity from the_________________ cavity. 7. What is the name of the round involuntary muscle that controls the movement of chyme from the stomach into the small intestine? 8. The spleen is actually part of the immune system. What is its function? 9. What does the rectum store? 10. What do the umbilical arteries carry, and to whom? 11. ________________ The________________________ is responsible for the production of _________________used to digest food. 12. ________________________________________________ The ________________________ is a thin, transparent sheet of tissue that suspends and supports the internal (visceral) organs. One function of this tissue is to keep the small intestine in place. What do this tissue's blood vessels do? Under the section heading "Quizzes," click on "digestive system" and complete. 2 Virtual Pig Dissection Part II Go to the following website: http://www.whitman.edu/biology/vpd/main.html READ EVERY SECTION OF THIS TUTORIAL THAT I TELL YOU TO READ COMPLETELY, AND FOLLOW EVERY PART OF MY INSTRUCTIONS. YOU ARE RESPONSIBLE FOR KNOWING THIS INFORMATION - EVEN THE INFORMATION THAT DOESN’T HAVE A QUESTION ABOUT IT. THIS WILL HELP YOU GET ACQUAINTED WITH THE FETAL PIG BEFORE YOU START DISSECTION!!! Under the section heading "Study Guides" click on "respiratory system." Complete the following questions: 1. The respiratory system is a complex group of organs that removes _______________ _________________ from the blood and replaces it with__________________________. This is done across a large, moist surface called the _________________________in the lungs. 2. The upper respiratory tract includes: a. nares b. c. 3. The esophagus and the trachea are tubes that lie right next to each other, yet do two completely different things. Describe the function of each. Click on "further dissection." 1. The trachea splits into two ____________________ leading into the lungs. Click on "dissect the lungs." 1. Air from the trachea enters the ___________________ , which split into smaller tubes called _________________. The air then goes to the ____________________, which are microscopic, thin-walled sacs. Click on "dissect further," then click on "move on to the diaphragm." 1. What are two things that occur in the thoracic cavity that cause air to rush into the lungs and create negative pressure in the thoracic cavity? a. b. 3 Under the section heading "Quizzes," click on "respiratory system" and complete. Under the section heading "Study Guides" click on "circulatory system." Complete the following questions: 1. The circulatory system is responsible for: a. the transportation of nutrients, gases, wastes, and hormones b. c. d. e. participates in the maintenance of body fluid homeostasis . 2. What membrane encases the heart? 3. What is the purpose of the thymus gland in a young/fetal pig? 4. What does the coronary artery do? 5. What happens if the coronary artery blocks? 6. In an adult pig___________________________, blood returning from the extremities of the body flows into the ___________________ ____________________, then is pumped into the right __________________. From there, the blood is pushed into the capillaries of the _______________ to get ______________________. The oxygen-rich blood returns to the __________________ ___________________, is then pumped into the ________________________ ___________________. From there, blood is pumped through the ___________________ to the entire body. 7. What do valves in the heart do? Under the section heading "Quizzes," click on "circulatory system" and complete. Under the section heading "Study Guides" click on "excretory system." Complete the following questions: 1. What is the clear membrane that covers the kidneys (and the other internal organs) and holds them in place? 2. The kidney is the main excretory organ. What are three of its functions? a. b. 4 c. 3. The _________________________ are hollow tubes that allow ________________________ filtered from the blood by the ________________________ to be taken to the urinary ________________ to be stored. 4. Fluid waste exits the bladder to the outside through the _____________________________. Under the section heading "Quizzes," click on "excretory system" and complete. Under the section heading "Study Guides" click on "nervous system." Click on the cranial region on the picture of the fetal pig and complete the following questions: 1. What is the cranium? 2. 3. What are the meninges? The brain can be divided into four lobes: a. _________________ _________________________: thought, speech and motor function b. _________________ _________________________: vision c. _________________ _________________________: smell and hearing d. _________________ _________________________: sensory association 4. True or False? Most mammals other than humans do not have smooth looking brains—they are very rough looking because of the deep convolutions that increase the brain's surface area. 5. What structure in the brain connects the two halves/hemispheres? 6. The __________________ ________________ relays messages between the ________________ and the rest of the body. 7. In general, what are the hard, bony structures that cover, support, and protect the spinal cord? 8. _____________________________ enter and exit the spinal cord through the spaces in between each vertebra, then radiate out into the body. Under the section heading "Quizzes," click on "nervous system" and complete. 5