Fetal Pig Dissection

Ms. KlinkhachornMay 18, 2011

AP Biology

Your “Final”

• There will be a written test and a lab practicum based on the fetal pig dissection– Example: • label this. label that.• What sex is the pig sitting on the table?• What is the posterior end of the pig?

Anatomical Directions

• In all science courses, particularly those that deal with human anatomy, you’ll need to know how to talk about the directions on the body

• There are different terms that refer to sides and regions of the body, and some names are relative to the other

Regions of the Pig

Anterior and Posterior

Dorsal and Ventral

Medial and Lateral

Proximal and Distal

Anatomical Directions

Determining the Sex of Your Pig

• Male– Urogenital tract opens beneath the umbilical cord

• Female– Urogenital tract is located next to the anus

Male Pig

Male Pig

Male Pig

Female Pig

Female Pig

Securing the Pig to the Tray

1. Tie string to the front right leg.2. Loop string UNDERNEATH the tray and tie

the other end of the string to the front left leg.

3. Repeat for the lower legs.

Securing the Pig to the Tray

Dissecting Tools

• Scalpel • Blunt Probe• Bent and straight needles• Steel blades• Dropper• Forceps• Scissors• T pins