Name: ___________________________________ Date: ______________________ Period: _________
Virtual Fetal Pig Dissection (VPD)-Introduction
Go to the following website: http://www.whitman.edu/content/virtualpig You will be using this handout in conjunction with the Whitman College VPD website to learn about introductory mammalian anatomy and physiology. Explore the website layout. Within the site, you can navigate to any chapter from the links on the left. You can return to previous chapter subdivisions by clicking your browser’s “back” button.
(1) Getting Started: Click on “Anatomical References” on the left navigation bar.
This section will outline some basic anatomic terms of the pig. • Click on “Regions of the pig”
Label the regions of the pig in the diagram below:
• Click on “Anterior and posterior” and answer the following questions:
Why are anatomical reference terms are a little different for pigs and humans?
Write the term used to mean… Toward the head: ______________________ (pig)
______________________ (human) Toward the nose: ______________________ Toward the tail: ______________________ (pig)
______________________ (human) “Tail end”: ______________________
Label the terms anterior and posterior on the human diagram to the right:
______________ ______________
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Click on “Dorsal and ventral” and answer the following questions: Toward the back: ______________________ (pig)
______________________ (human) Toward the front/belly: ______________________ (pig)
______________________ (human)
• Click on “Medial and lateral” and label the diagrams below with the terms medial and lateral:
• Click on “Proximal and distal” and label the diagram below with the terms proximal and distal at the appropriate points:
(2) Sexing Your Pig: Click on “Sexing your pig on the left navigation bar.
In this section, you will learn how to determine if your pig a male or a female. • Click on “Is it a male?”
Answer the following questions based on what you read and see:
______________ ______________
A is ____________ with respect to B
B is ____________ with respect to A
X is ____________ Y is ____________
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What structure do males lack that females have?
Near what area does the urogenital tract open? (click to see a closer view of the area)
• Click on “Is it a female?” Answer the following questions based on what you read and see:
What is the scientific term for mammalian nipples?
Near what area does the urogenital tract open?
What additional structure do females have in this area? (click to see a closer view of the area)
Anatomical References Quiz: Now that you have reviewed sections 1 and 2, it is time to test your knowledge. For this quiz, write the correct anatomical term in the corresponding boxes pointing to various places on the pig diagram.
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Sexing Your Pig Quiz: Now that you have reviewed sections 1 and 2, it is time to test your knowledge. For this quiz, decide whether the statements are true or false regarding sexing your fetal pig. Circle the correct response.
1. An easy way to determine the sex of a fetal pig is to check for the absence or presence of nipples. True False
2. Only the male fetal pig has a urogenital opening. True False
3. The male fetal pig has a developing scrotal sac, a penis, and a urogenital papilla. True False
4. This is a female pig (image to the right). True False