04.13.09
Human and Pig Anatomy Comparison
7th Graders,
We are now preparing for our fetal pig dissections. In order to learn the most about ourselves and large mammals during the dissection, we need to orient ourselves. I want each of you to review the links provided in this post. Then, post a short comment on the similarities and differences between human and pig anatomy. Some of the post are extremely technical, please rewrite the information in your own words. Note: you will read about every system but post about only one.
Your post should:
- Tell us what the system does in 2 sentences.
- Provide major similarities and differences between the human and pig system. (orientation, organ size, organ function, structure)
- Explain any other interesting facts you learned.
Links
- human pig comparisons
- The Pig Site
- TurboSquid Pig Diagrams
- Davidson University Pig Dissection Lab
- Virtual Pig Dissection
- Ultimate Fetal Pig Anatomy Review
- You may use Ebsco and Worldbook but NO GOOGLE SEARCHES!
-Mr. K
April 13, 2009 at 8:49 am
The nervous system is a system comprising of nerve cells and nerve bundles, that respond to stimuli. The integumentary system (which is the skin) protects the internal organs, regulates internal body temperature, and can respond to stimuli as well. Both pigs and humans have skin and a nervous system. But pigs skin is much thicker and less sensitive than a humans. A pig’s nervous system works the same way as a human’s nervous system works. The only difference is that the nerves in a pig can go different places because they have some different body parts. THE END
April 13, 2009 at 8:51 am
Urinary & Excretory By: Jake, Lilly, and Reagan
The Urinary and Excretory Systems in both humans and pigs are meant to do one thing, eliminate waste. This is done through the kidneys. The kidneys produce urine, which carries the wastes from the body.
The pig and human Excretory Systems are mainly the same. One main difference is that the pig’s organs (kidneys and tubes) are much smaller. The pig holds less waste, therefore this size is appropriate. As for how they work, they both do as stated before – eliminate waste.
Fun Fact: The kidneys are similar to beans in structure and color.
April 13, 2009 at 9:00 am
The respiratory system is the system that brings oxygen from the outside environment to the blood. It also eliminates extra carbon dioxide and water from the body.
The human cardiovascular system is very similar to the cardiovascular system of the fetal pig. Both the human and pig have four-chambered hearts and multi-lobed lungs. Humans have three lobes in the right lung and two in the left lung. In pigs, the right lung has four lobes and the left has two or three.
Unlike pigs, humans do not have a bicarotid trunk. The bicarotid trunk in pigs splits into the right and left common carotid arteries. In humans, the left common carotid artery branches from the aorta, while the right common carotid artery originates from the brachiocephalic artery.
Pigs also do not have the common illiac artery present in humans. In a human, the common illiac artery splits into internal and external illiac arteries. In a pig, the external and internal illiac arteries split directly from the aorta.
We couldn’t really find any interesting facts about pig cardiovascular systems on the websites… it was a struggle to find similarities and differences in the first place.
- Susannah, Jessica, and Emma
April 13, 2009 at 9:06 am
Lymphatic System:
The lymphatic system carries blood from tissues that have recently been soaked. The blood is then called lymph. The result of these actions balances the fluids in the body and helps absorb nutrients in the small intestine. The lymphatic system often works very closely with the cardiovascular system.
There were no significant differences. That was our interesting fact: no differences.
April 13, 2009 at 10:23 am
Mr. Kremer,
We are doing a post on the endocrine and reprodutive systems of pigs and humans. The reproductive system is for making spawn to keep the circle of life going. (very cheesy). The endocrine system helps you become able to make babies. In female pigs, the uterus is different. It has two horns that help the pig have a large litter. Other sexual organs like: Testes, ovaries, and the urethra are much the same.
P.s. Hope isn’t here so we switched the group a little: Me with Charlie and Hope with Steele and Christopher.
April 13, 2009 at 10:25 am
Hi Mr. Kremer,
The muscular system controls the actions of your muscles allowing your body to move. In vertebrates the musculatory system controlled by the nervous system.
The musculatory system in a human is very similar to that of a fetal pig. Most variations are in the size and locations of the muscles. They have the same major thigh muscles, also pigs are quadrupedal and humans are bipedal. They have the same major chest/abdominal muscles.
An interesting fact is that the heart and lungs of the fetal pigs are also involuntary actions controlled by the brain, just as in humans.
April 13, 2009 at 10:34 am
The Skeletal System
The skeletal system keeps the body structured. It is made up of bones that protect the organs. The human and pig skeletons are similar because they both have the same major bones like the skull, spine, femur, and jaw. Some of the differences are that they have hooves, their skulls are shaped differently, and they have many small bones while humans have many large bones. One of the major differences is that humans stand on two feet and have upright body structures and pigs stand on four legs. The function of the pig’s skeletal system is the same as a human: it keeps the body structured and protects the internal organs. The size of the skeletal system is smaller than a human. The structure of the skeletal system is very similar to the human skeletal system.
April 13, 2009 at 10:34 am
FUNCTION TIME!!!The pigs digestive system breaks down food that the pig eats into nutrients. When the pig eats something that’s good for it, vomiting occurs to get rid of it.
COMPARING/CONTRASTING TIME!!!!The pig’s digestive system and human’s digestive system are not very different. Both it’s structure and it’s function are similar. The pig’s intestines, however, are a little bit bigger than a human’s. Pigs and humans are similiar because they both have monogastric digestive systems.
FUN FACTS TIME!!! Pigs are omnivors, they eats plants AND MEAT!!! what if they ate eachother…
Well that’s it! Bye!
April 13, 2009 at 6:05 pm
The Digestive System
The functions of the digestive system in both the human and pig anatomy are to absoarb nutrients given out by certain foods and eliminate any other wastes that are left behind. It is also used to break down foods and secrete gastric juices.
The functions of this system in pigs and people is pretty much the same, but it differs in structure. The liver of a human consists of four lobes (right, left, caudate, and quadate)wheras thepig’s liver consists of five (right central, right lateral, left central, left lateral, and caudate). The intestines have a very distinct diference, the pig’s intestinal structure goes in a spiral and the human intestinal structure really has no noticeable pattern. The rest of the organs are virtually the same.