Rat Dissection.

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Presentation transcript:

Rat Dissection

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 http://dcfud.smorgasblog.com/userimages/rat.bmp http://www.gisbornesc.vic.edu.au/home/jans/home/rat.htm

Dorsal Anterior Posterior Ventral

Naris Vibrissa Mammary papilla Urethral Orifice Vaginal Orifice Anus

Penis Scrotal Sack

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.

Rat Dissection REMOVING SKIN

Rat Dissection REMOVING SKIN

Rat Dissection REMOVING SKIN

Masseter Pectoralis Major Biceps Triceps Latissimus Dorsi Oblique Rectus Abdominis Gastrocnemius

Rat Dissection MUSCLES Masseter Source #5

Rat Dissection MUSCLES

Rat Dissection MUSCLES Rectus Abdominis

Latissimus Dorsi Trapezius Oblique Deltoid Triceps

Rat Dissection MUSCLES Triceps Trapezius Deltoid Oblique

Latissimus Dorsi Oblique Trapezius Gastrocnemius Masseter Gluteus Deltoid Triceps

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

Rat Dissection ABDOMINAL CAVITY Source #4

Rat Dissection ABDOMINAL CAVITY Source #7

Cecum Large Intestine Source #1

Small Intestine

Cecum

Stomach behind pancreas

Aorta Heart Coronary Vessels Rib (Cut) Lung Diaphragm

Heart

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

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