1. Fetal Pig Dissection

2. The fetal pig our group is working on was not killed for this
The fetal pig our group is working on was not killed for this. It was found in a sow marked for slaughter, and was never born. It was then given to us for use in science.
Sus scrofa is the technical name of the domestic pig. They eat both plants and animals. Their body temperature is slightly higher than humans. They live 15 to 20 years. Pigs are often used in experiments on human drugs. There is a new “mini-pig” that weighs lbs. especially for that use.
During gestation, there is an exchange of substances between the blood of te mother and of the embryo across the placenta through the umbilical cord.

3. Our pig is 34 cm long, and was 112-115 days old at birth, which is full term.

4. Anatomical Directions Ventral (inferior) Posterior (caudal)
Anterior (cranial)
Anatomical
Directions
Lateral
Median
Sagittal
Transverse
Frontal (coronal)
Distal
Dorsal (superior)
Proximal

5. Lumbar region
Mammilary papillae
tail
ankle
Umbilical cord

6. How many pairs of mammary papillae do you count? 7 ½ pairs
Our fetal pig is male.
How many pairs of mammary papillae do you count?
7 ½ pairs
Do all specimens in class have the same amount? No

7. Pig Toes
Only the 2nd, 3rd, and 4th digits touch the ground. The 1st is nonexistent and the 5th never touches it.
2nd/3rd Digits
4th Digit

8. Pig Dissection Notes Use scalpel sparingly
Rely primarily on your dissecting needles.
Leave organs intact unless directed to do otherwise.
When using scissors, walk w/the blunt end out.
Move organs aside w/your fingers or a blunt probe.
Apply lanolin or Vaseline at the outset or wear thin rubber gloves.
Line your dissection pan w/paper towels in order to absorb excess fluids, as a storage for structures removed, and to ease cleaning up at the end.
Wrap the fetal pig in wet paper towels before returning it to the bag.
Twist the top of the bag and close tightly w/a rubber band.
Apply the following solution w/a one inch paint brush at the close of each session to preserve the softness and texture of the pig: 30 grams of Carbolic Acid crystals, 250 ml. of Glycerin, and 1000ml of Water.

9. Salivary Glands Masseter Muscle Parotid Gland
Facial Nerve, Dorsal Branch
Facial Nerve, Ventral Branch
Submaxillary Gland
External Maxillary Vein
Stensen’s (Parotid) Duct.

10. Teeth
3/3 Incisors
1/1 Canines
4/4 Premolars
0/0 Molars

11. Opening to Naso-Parynx
Nostril
Oral Cavity
Hard Palate
Soft Palate
Epiglottis
Opening to Naso-Parynx
Corner of Mouth
(cut surface)
Tongue
Papillae of Tongue

12. Opening to Naso-Pharynx
Canine Tooth
Hard Palate
Corner of mouth
Soft Palate
Opening to Naso-Pharynx
Opening to Trachea
Mandible
Epiglottis

13. Stomach
Liver
L. I.
S. I.
Umbilical
Artery

14. Kidney, Spleen, Ceacum, and Stomach not shown
L.I.
Liver
Umbilical Artery
S.I.
Urinary Bladder
Kidney, Spleen, Ceacum, and Stomach not shown

15. Stomach
Pancreas
L.I.
Liver
S. I.