pig dissection
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Pig Dissection Visual Instructional Guide
Wooden Needle Scalpel
Scissors
Forceps Blunt Probe
Small Needle
Instruments
Opening the SpecimenCut the specimen along the edge of the bag where this dotted line appears.
Be mindful to hold the bag upright as you cut to prevent excess fluid from pouring out.
1. Pour the excess fluid into a nearby sink from the bag.
2. Take out fetal pig and place on tray like seen on the left.
3. Pour out excess fluid from bag and place bag to the side.
You will be making multiple incisions with the scalpel along the dotted lines seen to the right.
First Incisions
Our first incisions with the scalpel will be along the right and left arms on the red dotted line seen above at the red arrows.
Second Incision
Make your second incisions along the dotted red lines of the lower legs. Use your scalpel on the red arrow areas.
Third IncisionsCut along the lower legs and arms where the arrows are pointing. Use your scalpel to cut along these lines.
Fourth Incisions
Make your final incisions along the lines on the chest, around the umbilical chord and to the legs.
Umbilical Chord
Removing Skin
Use the forceps to pull back the skin as you guide the scalpel underneath carefully separating the skin from the muscle.
Hold the scalpel horizontal as seen here. Do not cut down into the muscle.
12
3
4
Pin back the skin with the small needles
Using the scalpel cut straight down into the muscle along the inner arms to separate the
arm to pin down the entire pig.
Left Arm Right Arm
Do the same with the legs
Left Leg Right Leg
Place wooden needles through muscle in arms and legs and into the wax to hold them down. If they don’t stay down continue to cut more into the muscle of the arms and legs to
loosen them.
Now we will use the scalpel and make incisions
along the dotted lines below. Do
not press too hard and penetrate major organs.
Cut as before like with the skin. Use the
forceps and the scalpel at a horizontal angle.
You will need to press hard on the upper body to penetrate through the rib cage and sternum.
Continue to cut and use the wooden needles to pin down both
sides of the rib cage.
Upper and lower body under muscle
What do you see in each picture?
Heart
Lungs
Ribs
Umbilical Chord opening
Glands in the Throat
Peel back or cut away the muscle of the lower body
Liver
Small Intestine
Large Intestine
Diaphragm
Lungs
Stomach
Remove the heart by cutting behind the heart with the scalpel or scissors. Use the
forceps to hold it.Two Atria
Cut the heart in half with scissors.
Aorta Right Ventricle
Left Ventricle
Atria
Use forceps and scissors/scalpel to remove the lungs.
Trachea Esophogus
Diaphragm laying over the liver
Remove liver carefully using scissors. Do not penetrate stomach.
Front side liver Back side liver with gall bladder
Stomach with opening to small intestines.
Small Intestines
Tube connecting the stomach and small intestines
Stomach
Large Intestine
Spleen
Remove stomach trying not to penetrate stomach. Use
scissors carefully around the stomach.
Closed Stomach Stomach with opening cut
Empty contents of stomach out an cut stomach open like a ballon.
Opening to the small intestine. Opening into the spleen.
Cut out small and large intestine with scissors. Try to keep entire
system intact together.
Front side Back sideSmall Intestine
Large Intestine
End of large intestine (Caecum)
Kidneys
KidneyKidney
Rectum
Cut the kidney in half with scissors
Filtering Area of kidney
Internal area to distribute urine.
Carefully remove the kidneys.
Esophagus
Aorta
Backbone
Backbone
Larynx
Trachea
Ribs
Press down on tongue and push hard to break lower jaw slightly.
Underneath the tongue
Tongue
Above the tongue
Hard upper palette.
Cut off the head below the ears above the throat using scalpel. You will need to press
hard to get through the backbone.
1. Cut away at the skin covering the eye using scissors and forceps.
2. Remove upper and lower eye lid.
3. Carefully remove entire eye with scissors/scalpel/forceps.
Cut open the eye and remove hard ball in center.
Intact eye Eye with lens removed
Pupil and Cornea Pupil and Cornea Lens
Observe underside of hear where the cut was made.
Trachea
Esophagus
Spinal Cord
Pin down head using wooden needles in ears and cut off skin on locations below
using scalpel and forceps.
Using scalpel cut firmly down into skull at locations below. Remove pieces with
forceps and scissors
Brain
Cut out one half of brain using scissors.
Disposal
1. Gather all pig remains and dispose into large trash can.
2. Rinse all equipment, including trays, in sink to clean.
3. Stack trays and place equipment on large tray to dry.
4. Dispose of gloves and wash hands.
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