The brain is the most complex organ in the body, made up of more than 100 billion nerve cells (neurons) and trillions of supportive cells (glia). 1)
The brain is responsible for all of the body's functions, including movement, sensation, thought, and memory. 2)
The brain is divided into three main parts: the cerebrum, cerebellum, and brainstem. 3)
The cerebrum is the largest part of the brain and is responsible for conscious thought, memory, and emotion. 4)
The cerebellum is located beneath the cerebrum and is responsible for coordinating movement and balance. 5)
The brainstem connects the brain to the spinal cord and controls essential functions such as breathing, heartbeat, and blood pressure. 6)
The brain is protected by the skull, which surrounds it, and three meninges, which are layers of protective tissue that cover the brain and spinal cord. 7)
The brain is made up of about 60% fat, which helps to insulate the neurons and support their function. 8)
The brain is the most energy-intensive organ in the body, using about 20% of the body's total energy. 9)
The brain is able to rewire and adapt itself, a process called neuroplasticity. 10)
The brain contains a specialized region called the hippocampus, which is essential for forming new memories. 11)
The brain's prefrontal cortex, located at the front of the brain, is responsible for decision-making, problem-solving, and controlling impulses. 12)
The brain's amygdala, located deep within the temporal lobes, is responsible for processing emotions such as fear and aggression. 13)
The brain's hypothalamus controls the body's homeostasis and regulates many of the body's automatic functions, including body temperature, hunger, thirst, and fatigue. 14)
The brain's occipital lobes located at the back of the brain are responsible for processing visual information from the eyes. 15)