1. Rat Dissection

2. Rat Dissection Scientific Name: Rattus norvegicus Common Name: Rat
RATS
Scientific Name: Rattus norvegicus
Common Name: Rat
Kingdom- Animalia
Phylum- Chordata
Class- Mammalia
Order- Rodentia

3. Dorsal
Anterior
Posterior
Ventral

4. Naris
Vibrissa
Mammary papilla
Urethral Orifice
Vaginal Orifice
Anus

5. Penis
Scrotal Sack

6. Skinning the rat
Make a midventral incision as illustrated in the picture. Use your probe, scissors and finger to free the skin from the underlying tissue.
You should encounter two brownish muscles attached to the skin (the cutaneous maximus in the trunk area, and the platysma in the neck area). You will probably have to cut these muscles close to the skin before the skin can be removed.

7. Rat Dissection
REMOVING SKIN

8. Rat Dissection
REMOVING SKIN

9. Rat Dissection
REMOVING SKIN

11. Masseter
Pectoralis Major
Biceps
Triceps
Latissimus Dorsi
Oblique
Rectus Abdominis
Gastrocnemius

12. Rat Dissection
MUSCLES
Masseter
Source #5

13. Rat Dissection
MUSCLES

14. Rat Dissection
MUSCLES
Rectus Abdominis

15. Latissimus Dorsi
Trapezius
Oblique
Deltoid
Triceps

16. Rat Dissection
MUSCLES
Triceps
Trapezius
Deltoid
Oblique

17. Latissimus Dorsi
Oblique
Trapezius
Gastrocnemius
Masseter
Gluteus
Deltoid
Triceps

19. Diaphragm
Lobe of Liver
Esophagus
Small Intestine
Spleen
Stomach
Pancreas
Large Intestine
Rectum
Cecum
Small Intestine
Anus
Appendix

20. Rat Dissection
ABDOMINAL CAVITY
Source #4

21. Rat Dissection
ABDOMINAL CAVITY
Source #7

22. Cecum
Large Intestine
Source #1

23. Small Intestine

24. Cecum

25. Stomach behind pancreas

27. Aorta
Heart
Coronary Vessels
Rib (Cut)
Lung
Diaphragm

28. Heart

30. Kidney Bladder Ovary Uterine Horn Ureter Vagina (Pulled to side)
Urethra
Urethal Orifice
Vaginal Orifice
Anus

31. Kidney Urinary bladder Ureter Seminal vesicle Prostate gland Urethra
Vas deferens
Penis
Testis
Scrotum (opened)
Scrotum