Essay on White Rat Dissection Lab Report

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White Rat Dissection Lab Report GOALS:

Learn about the anatomy of the White Rat.

Gain dexterity with instruments used in the dissection procedure.

Compare and /or contrast the anatomy of the White Rat with that one of the Human body.


Cadaver of a White rat, preserved in chloroform.

A dissection pan, Butcher’s twine, Bounty paper towels, latex gloves.

3. Instruments used in the dissection kit: Scissors; Forceps; Scalpel; and the Probe

The first step was to obtain the White Rat and to tie it in the supine position, anterior surface facing up in side the dissection pan. To tie the animal, we used butcher’s twine and secured the front and hinds legs using a “lasso”
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TRACHEA: Pinkish in color, looked like a stack of cartilage rings with some space between the rings.

LUNGS: Dark reddish brown in color. It had 6 lobes. One on the left side, 2 lobes in the middle, and 3 on the right side.


HEART: Located inferior to the trachea and superior to the diaphragm and liver, light pink in color. It appeared to be the size of a lima bean, surrounded by a bright pink rubbery substance, said to be a ruptured blood vessel. The left and right atrium was dark brown and located at the coronal end of the heart. It appeared that there was only one ventricle which was light brown in color.

AORTA: Located superior tot he heart between the two atriums, was reddish in color and bean-shaped, the Vena Cava was attached at the dorsal side of the ventricle, and it was blue in color with a threadish appearance.

SPLEEN: Located inferior to the one lobe of the liver, lateral to the stomach. It was dark brown in color, vertically lengthened, flat and smooth.


THYMUS GLAND: Located superior to the heart, surround the trachea, pinkish brown in color and bean shaped.

ADRENAL GLAND: superior to the kidneys, they are small and light brown in color


DIAPHRAM: Medial area of the rat, separating the thoracic cavity from the abdominal cavity. It was tan in color, thin, sturdy, but still quite

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