Perez 1 Stefani Perez Mrs. LePorte Anatomy pd. 5 07 February 2012 Human and Cat Anatomy Many different things in the world today are alike and different. In fact, the two most random things are going to, obviously, have their differences. But, when one takes a closer look, even the most random things are going to have their similarities as well. Living things are no exception to this. For example, take a cat and a human. At first glance both species have their differences. The biggest one being what they actually are: A human is a human and a cat is a cat. However, different aspect of each species such as the muscles, body proportions, and organs, can be compared and contrasted in both a cat and a human. In the end, both have their fair share of similarities and differences. To start off with, it’s no secret that both a cat and a human have muscles. Although at first it may sound impossible that cats have a lot of the same muscles that humans do, it’s true. Human have flexor muscles on the inside of their arms like cats do. On the other side of the arm are the extensors on both species. The Sartorius muscle is the longest muscle in both species’ body. Also, the important muscle rectus femoris helps both species stand. One differences comes with the chest muscles. Humans don’t have very many chest muscles. In fact, we only have two pectoral muscles: pectoralis major on each side of the chest. Cats, however, have four pectoral muscles: Pectoralis minor, petoralis major, pectoantebrachialis, and xiphihumeralis. Proportion is key when it comes to the human body. Simply, proportion is simply a relationship of one thing to another in terms of size or quantity. In humans, proportions can be Perez 2 found virtually anywhere on the body. One of the most fascinating and important proportions is the relationship between a person’s height and their femur. In theory, a person’s femur is one- fourth their height. In the cat lab, we didn’t think to measure the femur, or the portion of muscle above the femur, to determine if such a proportion exists. But based by sight alone, it cam be assumed that the same exist in cats. After all, both cats and human are mammals. But, one proportion that humans lack is any relationship of a certain body part to the tail because humans don’t have a tail. According to the calculations taken from our cat, the size of the tail is about one-third the size of the body. So a proportion does exist between a cat’s tail and its body as well. One aspect that can be compared in human and a cat are their organs. It’s easy for someone to think that a cat is going to have completely different organs than a human. But this really isn’t all that true. Humans do have the same organs than a human. The major difference is that because of its body size, the organs of a cat will be smaller. In both cats and humans, the lungs surround the heart and the large intestine borders the small intestine. Both organisms have two kidneys as well. So essentially, every organ found in a human is found in a cat. Both cats and humans have their similarities and differences. It’s interesting to see that once a lot of similarities are made, just how much more alike a cat and a human are than they are different. A cat is a cat and a human is a human. However, both species are still mammals, which would explain the similarity in their anatomical makeup. Different aspect of each species such as the muscles, body proportions, and organs, can be compared and contrasted in both a cat and a human.
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