The document provides instructions for a lab exercise on dissecting a fetal pig. The objectives are to identify the major organs and describe the cavity and systems where each organ is located. It describes making incisions to expose the thoracic cavity containing the heart and lungs, and the abdominopelvic cavity containing organs like the stomach, liver, intestines and reproductive organs. Key terms are defined to describe the anatomy. A diagram labels the external anatomy and internal organs discovered during the dissection.

1. Lab Exercise 10 Dissection of The Fetal Pig By Samson M.; Ph.D.

2. Learning Objectives Describe the major cavity and the organs contained in each. Identify the major internal organs of the fetal pig. Describe the function of specific systems.

3. Fetal Pig Dissection In this exercise, you will study the basic organization of mammals through the dissection of a fetal (unborn) pig The purpose of the dissection is to expose the various organs for study Your dissection will focus on the internal organs located in the ventral (toward the belly) body cavity

4. Anatomical Terms Superior  above (toward the top) Medial  toward the middle Inferior  underneath, below (toward the bottom) Lateral  towards the side (away from the middle)

5. Anatomical Terms Dorsal (posterior)  toward the back, toward the rear Anterior  toward the front Proximal  closest to the point of attachment Distal  away from or farther away

6. Body Cavities Thoracic Cavity  houses the lungs and heart Abdominopelvic Cavity  houses the stomach, liver, spleen, gallbladder, small and a large intestines, urinary bladder, and the internal reproductive organs. Thoracic and abdominopelvic cavity separated by diaphragm

7. Membranes Pleura (or pleural membrane)  surrounds the lungs Pericardium (or pericardial membrane)  surrounds the heart Peritoneum (or peritoneal membrane)  surrounds all the organs within the abdominopelvic cavity

8. Organ Systems Digestive System  breakdown of food substances into simpler forms that can be absorbed (digestion). Circulatory S.  transports materials throughout the body Urinary System  removes ("filters") wastes from the blood. and helps maintain the body's water and electrolyte balance.

9. Organ Systems Respiratory System  exchange of gases between blood and air. Reproductive System  it is responsible for the production of whole new organisms like itself.

10. External ear External Anatomy of Fetal Pig Nose Eyelids Elbow Shoulder Tongue Umbilical cord Hip Tail Knee Ankle

11. Sequence of the Incisions (Ventral View)

13. Trachea Larynx Heart Liver Lung Kidney S. Intestine L. Intestine

14. The End