Pig Dissection
Monday, May 28, 2012
References
Chiasson, R. Odlaug, T. Radke, W. (1996, August 1). Laboratory Anatomy of the Fetal Pig. Boston: McGraw-Hill Higher Education.
Day 5 - Nervous System
Not part of the nervous system but it was not included in the Day 4 photographs. |
Sections of the brain |
The spinal cord carries the brain's functions to other parts of the body in order to carry out the action. |
Pig's eye pigment under light microscope |
Closer to the eye pigment |
Optic chiasma is used in reading the eye's vision. |
Olfactory bulb is used in the sensing of odors. "Pons are fiber tracts on the ventral, rostral end of the medulla connecting the hemispheres of the cerebellum." (Chiasson, 1996) |
Most parts of the eye are described in this short video.
Sclera is the outer layer of the eye.
Iris is contains the pigment of the eye.
Pupil is the opening of the eye seen in between the iris.
Cornea is the outer layer of sclera that is exposed to the outside.
Optic nerve sends signals from the eye to the brain.
Thursday, May 24, 2012
Day 4 - Excretory, Respiratory, Circulatory, and Reproductive Systems
The different parts of the heart are illustrated above. |
The above is a picture of a piece of a liver shunt found on our pig. |
The above is a picture of a piece of the normal liver for comparison to the shunt. |
It is truly AMAZING how large of a proportion muscle tissue takes up in the heart. |
The inside of a ventricle. |
Again, inside of a ventricle and the pulmonary vein |
Another view of the previous picture. |
Above are two videos on Dr. Meade's dissection of the head.
The fourth and final tissue can be seen in this picture along with the skull. |
A picture from within the lungs. Alveoli are too small to see in this picture but are involved with oxygenating the blood stream. The veins and arteries can be seen along with the bronchus. |
Wednesday, May 23, 2012
Day 3 - Finishing Digestive System
In this picture, the mesentery can be seen holding the small intestine together. Blood vessels that transport nutrients to and away from the small intestine can be seen also. |
This picture is of an opened stomach, exposing the rugae The rugae are the ridges seen within the open stomach and are used for a greater surface area in the stomach. |
Three of the four types of tissues shown in this picture. |
The Pancreas secretes hormones into the blood in order to control the blood levers. The Kidney filters blood. The Small intestine absorbs nutrients from food |
The removed gallbladder |
The cecum is the spot where the large intestine meets the small intestine. |
The inside of the small intestine is full of microvilli which increase surface area to absorb more nutrients. |
The amazing picture of the small intestine under the light microscope shows the microvilli and blood vessels that transport nutrients to and from the small intestine. |
Another GREAT picture of the microvilli |
The rectum, which plays a role in elimination of waste from the digestive system, can be seen here. |
Tuesday, May 22, 2012
Day 2 - Digestive System
Today we broke the jaw in order to see the layout of the mouth.
There were many muscles that controlled the jaw. It still gets me a little queasy looking at it all. |
A picture of the incisions we made. |
Next, we made lateral incisions from the base of the neck to the umbilical cord. Splitting the incision into two incisions down each leg. Another incision was made under the arms. Scissors were used to separate the muscle tissue from the skin.
Tomorrow, a picture of the gallbladder and pancreas and another system!
Day 1 - External Anatomy
It's a girl! You can tell by the genital papillum. |
Some of the external Anatomy. |
I learned something new today, I didn't know that pigs had four toes on each foot. I thought it was only two. And who knew they were called "digits"??? |
The Vein and Artery in the umbilical cord as very clearly seen along with the teats of our female pig. |
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