Brain

• The brain is one of the largest and most complex organs in the human body.
• It is located in the head, usually close to the sensory organs for senses such as vision.
• The brain is an amazing three-pound organ that controls all functions of the body.
• It weights about 1.5 kilograms.
• It contains about 86 billion nerve cells (neurons).
• These neurons are connected by trillions of connections.

Gk Quiz Brain important for SSC, UPSC, Railway and other competitive Exam

Brain has many different parts that work together. Which are given below-

1. Cerebrum- The Cerebrum is the largest part of the brain. It is responsible for memory, speech, the senses, and emotional response.
2. Cerebellum- Cerebellum is a very precise and clearly organized organ. It is positioned in the back skull pit. Its key functions include movement coordination, balance, standing, and walking.
3. Brain stem- Brainstem, area at the base of the brain that lies between the deep structures of the cerebral hemispheres and the cervical spinal cord. The brainstem has many basic functions, including regulation of heart rate, breathing, sleeping, and eating. It also plays a role in conduction
4. Pituitary Gland- The Pituitary Gland is a part of your endocrine system. Its main function is to secrete hormones into your bloodstream. The pituitary gland is often called the master gland.
5. Hypothalamus- The Hypothalamus is a small but important area in the center of the brain.It has a vital role in controlling many bodily functions including the release of hormones from the pituitary gland.

Brain contains four lobes-

• The Frontal Lobes- The Frontal lobes are located in the front of the brain. The frontal lobe controls intellectual activities, such as the ability to organize, as well as personality, behavior, and emotional control.
• Temporal Lobes- The Temporal Lobes are located on the side of your brain just above your ears. It is primarily involved in processing and interpreting sounds.
• The Parietal Lobes- The Parietal Lobes are located behind the frontal lobes and above the temporal lobes. Neurons in the parietal lobe are involved in speech and reading.
• The Occipital Lobes- The Occipital Lobes are located at the back of the brain. It is primarily involved in vision: seeing, recognizing, and identifying the visual world.