Question

The brain is responsible for
(a) Thinking
(b) Regulating the heartbeat
(c) Balancing the body
(d) All of the above

Answer 1

 
Hint: The central processing organ of the human body is the brain. Our whole body follows every command given to them by the brain. These commands are carried from the brain to the body parts by nerves.

Complete Step by Step Answer:
The brain is the most important body organ as it is the central processing unit of the body. These commands are delivered through the nerves to the different parts of the body.
The major functions of the brain are:
- Voluntary movements: All those movements which are under the voluntary control of the body, that are performed with the will of the organism are called the voluntary movements. Walking, running, talking, typing, writing, etc., are all the voluntary movements that are controlled and coordinated by the signals sent by the brain through the nerves to the muscles.
- Balance of the body: The brain controls the Balance of the body. Balance is required in the static as well as dynamic activities.
- Functioning of the different vital organs: The functioning of the vital involuntary organs like heart, kidneys, lung, liver, etc. Are controlled by the brain.
Thermoregulation: The control of the body temperature is called thermoregulation. The environmental conditions keep on changing but the internal body temperature remains constant which is maintained by the brain.

- Human behavior: The human behaviors, creative ideas, memories, thoughts, emotions; all cognitive functions are controlled by the brain.

So, the correct answer is, '(d) All of the above'.

Additional Information:
- CNS is the site of the processing of information and control. The brain and spinal cord are the main components of the CNS.
- Static activities are those activities that are performed without changing the location of the body i.e., standing, sitting, and lying positions. Whereas the dynamic activities are the ones where the change in location takes place like walking, running, etc.
- The human brain is also a site for processing various sensations like vision, smell, taste, touch, pain, vibration, pressure, chemical, etc.
- Different parts of the brain have different functions to perform.
- The word “cerebellum” literally means ‘little cerebrum’.

Note: 
- Voluntary and involuntary activities both are controlled by the brain but by the separate portions of the brain.
- Cerebrum, a part of the frontal lobe, is responsible for the creative ideas and thoughts whereas the cerebellum is responsible for the maintenance of balance and posture. Medulla oblongata consists of a center that controls respiration, cardiovascular reflexes, and gastric secretion.
- All the activities controlled by the cerebellum are involuntary but may involve learning in their early stages.