What organ controls most of the body’s activities and interprets information from the senses?
A. Heart
B. Brain
C. Liver
D. Kidney
Answer (1)
The correct answer is B. Brain. The brain is the control center of the human body. It is the most complex organ in the central nervous system (CNS) and is responsible for regulating all voluntary and involuntary body functions. The brain processes sensory input, interprets it, and sends signals that control bodily actions — from thinking and decision-making to breathing and heart rate.The brain is divided into several major regions:The cerebrum is the largest part and is involved in reasoning, language, memory, and voluntary movement.The cerebellum is responsible for balance and coordination.The brainstem (which includes the medulla oblongata and pons) controls basic life functions, such as breathing, heartbeat, and digestion.The hypothalamus regulates temperature, hunger, emotions, and links the nervous system to the endocrine system.The brain receives sensory signals from eyes, ears, skin, tongue, and nose. It interprets these messages and sends out commands through the spinal cord and peripheral nerves. For example, when you see a bright light, your brain interprets that signal and tells you to squint or look away.The brain is also responsible for storing memories, forming thoughts, and managing emotions. All conscious actions originate in the brain, but it also controls many unconscious functions.In contrast:The heart pumps blood.The liver filters toxins and processes nutrients.The kidneys filter blood and form urine.Damage to the brain can lead to serious conditions like stroke, epilepsy, or memory loss. That’s why in studying anatomy, understanding the brain’s structure and function is essential for grasping how the entire human body operates.
