Question

Corpus callosum connects
A. Two cerebral hemispheres
B. Two ventricles of brain
C. Two cerebellar hemisphere
D. Two optic thalamus

Answer 1

Hint: Human brain consists of white matter pathway in which the messages get transmitted from one gyrus to another, from lobe to lobe, one side of the brain to the other side of the brain and to form structure inside the brain.

Complete Answer:
- The human brain comprises three parts: the cerebrum, the cerebellum, and the brainstem. The cerebrum is the largest part of the human brain that has right and left hemispheres. It involves in maintaining the functions such as touch, hearing, and vision, this even controls our emotions, learning, reasoning, and movement.
- The cerebellum is found under the cerebrum, it helps in muscle coordination, movement, balance and maintain the posture. The last part is brainstem, it work as the relay center that means it connect the cerebrum and cerebellum to the spinal cord, it involves in controlling of functions like heartbeat, breathing, temperature of the body, sleep cycle, sneezing, digestion, vomiting, coughing, and swallowing.
- Now, The left and the right hemisphere of the cerebrum consists of a corpus callosum that is the bundle of fibers, this involves the transmission of messages from one side of the brain to another.
- All the function of the brain is controlled by glands and parts found deep inside the brain, this involve; hypothalamus, pituitary gland, pineal gland, thalamus, basal ganglia, and limbic system.
- The hypothalamus found in the floor of the third ventricle and involves controlling all the autonomic functions like hunger, sweating, thirst, etc. it also involves in the regulation of blood pressure, emotions, secretion of hormone, and body temperature.

Thus, the correct option is ‘A’. Two cerebral hemispheres.

Note: Hypothalamus and the pituitary gland is the master gland of our body. All the glands and their secretion are controlled by hypothalamus and the pituitary gland together. All our emotions and autonomic functions from heart beat to body movement are controlled by these two.