Chapter 14, Problem 1CP

Compare the sizes and locations of the cerebrum and cerebellum.

Summary Introduction

To review:

The comparison between sizes as well as the locations of cerebrum and cerebellum.

Introduction:

The central nervous system (CNS) comprises the brain and spinal cord. The human brain constitutes of vesicles that make up five major components: telencephalon, diencephalon, mesencephalon, metencephalon, and myelencephalon. Cerebrum is considered as the largest and the most developed portion of the mammal's brain and it plays a key role in awareness, memory, thought, consciousness, and perception. The cerebellum is referred as the second largest portion of the brain that play an important role in primal feelings, language, attention, precision, and accuracy.

Explanation of Solution

Cerebrum and cerebellum are the parts of forebrain and hindbrain, respectively. A comparison between the cerebrum and cerebellum on the basis of their size and location is given below:

S. no	Cerebrum	Cerebellum
1.	It makes the largest part of the brain and consists of around 83% of the total brain mass.	It is the second largest part of the brain and forms around 11 % of the total brain mass.
2.	It is a part of secondary vesicle that is telencephalon.	Cerebellum is a component of secondary vesicle metencephalon.
3.	It is a part of prosencephalon (forebrain).	It is a part of rhombencephalon (hindbrain).

Conclusion

It can be concluded that cerebrum is largest in size as compared to the cerebellum and it is located in the forebrain, whereas the cerebellum is located within the hindbrain.