Difference between human brain and sheep brain
Human brain vs sheep brain:
All living beings on earth, whether it’d be human or animals, all function on a central control unit. That is to say all living beings are maneuvered via a central control agent, namely the brain which is the most complex body organ in the entire system of both man and animal which is located inside the head. Only a very few animals such as jellyfish, and sponges do not have a brain and all other vertebrates and invertebrates possess brains. The human brain, which is the most complicated of all brains, is certainly different from the brains of other animals. Sheep is an animal whose brain is noticeably similar to the human brain, yet there are some distinct differences between the two. For one, the sheep does not have the ability to think, and that simply makes their brain less efficient than the human brain. However, this article endeavors to discuss the differences between the human and sheep brain.
What is human brain?
The human brain is the most complex of all brains. It is the central organ of the nervous system. The structure of the human brains is the same as that of other mammals but it is larger in size and more efficient in function. That is to say, the human brain can perform functions such as thinking, creating, philosophizing, and calculating which brains of other mammals cannot do or make happen. The human brain is consisted of 80-120 million of neurons and the brain of an adult weighs about 1300-1400 grams, and the length is almost 15 cm. Speaking of the structure, the human brain is mainly divided into two sections and they are called ‘hemispheres’; the left and the right hemispheres. Each hemisphere is responsible for one half of the body; it is the left hemisphere that looks after the right side of the body and vice versa. Therefore, if left hemisphere is damaged, paralysis in the right side of the body can be occurred. Further, the cerebrum of the brain, which is the largest part of the brain and where things like perception, imagination, thought judgment and decision occur, is divided into four sections or lobes and they are; the frontal lobe, the temporal lobe, the parietal lobe and the occipital lobe. Each of lobes contains brain areas connected to unique tasks. Two instances would be:
The frontal lobe is related to planning, predicting, speaking, and other body acts.
The temporal lobe is involved in hearing, language and memory.
Damage to the brain by stroke, blow to the head and other internal injuries may result in severe impairment of language, sight, hearing, perception, comprehension, and other motor skills of a human. Several disorders can be noticed in relation to a damaged brain such as depression, schizophrenia, aphasia, etc.
What is sheep brain?
A sheep is a mammal of whom the structure and function of the brain is similar to a human brain. Compared to the human cortex- the outer layer of the brain-, the sheep brain has a smaller cortex. The sheep brain is small and weighs less. And, it is elongated in shape. The sheep brain usually weighs approximately 140 grams and in length it is only 5 cm long. Speaking of the structure, the cortex of the sheep brain is not divided into hemispheres. The pineal gland which is responsible for controlling reproduction and circadian rhythms happens to be larger in the sheep’s brain. Further, the olfactory bulbs of the sheep brain are also larger and the olfactory, optic and trigeminal nerves are noticed as highly developed in the sheep brain. Moreover, mentioning about the function of the sheep brain, motor control and behavior which are generally controlled by the cerebellum are lesser and in a sheep brain and such functions are very limited.
What is the difference between human and sheep brain?
Although it is true that there are several similarities between the two brains, there are even more dissimilarities between a human brain and a sheep brain. To begin with external aspects, the human brain is larger in size while the sheep brain is smaller. The human brain weighs more than the sheep brain. Plus, the sheep brain is shorter in length than the human brain. And, the human brain is rounded in shape whereas the sheep brain is elongated.
Speaking of the structure, though both brains have cerebellum and cortex, the cerebellum and cortex is lesser and smaller in a sheep brain. The human brain has the largest cerebellum. The human brain is divided into two hemispheres while the sheep brain is not. Further, the human brain is again divided into four lobes based on function and such lobes are not seen on a sheep brain.
Speaking of the function of the brain, the human brain has a broader capacity to function than a sheep brain. The humans have more motor skills than a sheep. Yet, the olfactory sense of a sheep is high as the sheep, being non-human animals, usually rely upon their capacity to smell than humans do. On the contrary, humans generally rely upon their senses of sight and hearing and therefore the human brain conveniently facilitates those faculties more.
To conclude, the human brain with all its abilities is more complex, efficient and functional than some animal brain.
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