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Fetal Pig Dissection

Fetal Pig Dissection

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Fetal Pig Dissection

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  1. Fetal Pig Dissection

  2. Background Information • These specimens are NOT raised for dissection purposes. They are salvaged from pregnant sows at slaughter for food. • They have been embalmed via the umbilical cord. • Arteries and veins also injected with latex (red arteries, blue veins).

  3. Objectives: • Perform a whole body dissection of a vertebrate like ourselves • Many similarities exist! • Muscular, digestive, respiratory, circulatory, reproductive systems • Identify the major anatomical features of the pig • Understand the relationships between form & function of each organ, each system, and how all systems interconnect – homeostasis!

  4. Objectives: • Determine the sex of pig using external anatomical landmarks • Determine age of fetus via length (fetal pig gestation time = time in the uterus) • Gestational time for pigs ranges between 112-114 days • Length specifies age • 11 mm - 21 days 17 mm - 35 days • 2.8 cm - 49 days 4 cm - 56 days • 22 cm - 100 days 30 cm -- birth

  5. MUSCULAR SYSTEM

  6. Neck & Shoulder Muscles

  7. Neck & Shoulder Muscles

  8. Neck & Shoulder Muscles

  9. Lateral view- Shoulder & Leg Muscles

  10. Lower Limb Muscles

  11. Lateral view- Shoulder & Leg Muscles

  12. Lower Limb- Lateral Muscles

  13. Lower Limb- Medial Muscles

  14. Lower Limb- Medial Muscles