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 112114 days
– Length specifies age
• 11 mm - 21 days
• 2.8 cm - 49 days
• 22 cm - 100 days
17 mm - 35 days
4 cm - 56 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