Fetal Pig Dissection - PowerPoint by 8Yt1Al

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									Fetal Pig Dissection
      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).
                  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!
                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
MUSCULAR SYSTEM
Neck & Shoulder Muscles
Neck & Shoulder Muscles
Neck & Shoulder Muscles
Lateral view- Shoulder
    & Leg Muscles
Lower Limb Muscles
Lateral view- Shoulder
    & Leg Muscles
Lower Limb- Lateral Muscles
Lower Limb- Medial Muscles
Lower Limb- Medial Muscles

								
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