In fact, your brain is the boss of your body. It runs the show and controls just about everything you do, even when you're asleep. Not bad for something that looks like a big, wrinkly, gray sponge. Your brain has many different parts that work together.
How does the brain actually think?
The brain's primary building element starts with the brain cells known as neurons. Chemical processes in the brain send out messages through the neurons that determine the mental processes along with thinking. The motor neurons produce the action in our muscles and the sensory neurons connect to our five senses.
What does the human brain do?
A neuron is a nerve cell in the brain. The human brain is made up of approximately 100 billion (100,000,000,000) neurons. The brain is an organ as it controls the functions of the body. It is sometimes referred to as a muscle of thinking as the brain actually tells your muscles what to do.
The cerebrum. The cerebrum, the large, outer part of the brain, controls reading, thinking, learning, speech, emotions and planned muscle movements like walking. It also controls vision, hearing and other senses.
It has three main parts:
- The cerebrum fills up most of your skull. It is involved in remembering, problem solving, thinking, and feeling.
- The cerebellum sits at the back of your head, under the cerebrum. It controls coordination and balance.
- The brain stem sits beneath your cerebrum in front of your cerebellum.
6 Major Parts of the Brain and What They Do
- Lobes of the Brain. Frontal Lobes.
- Motor Cortex and Somatosensory Cortex. Between the parietal and frontal lobes are two bands across the top of the brain from ear to ear.
- Brain Stem.
- The Limbic System.
The brain is an organ that's made up of a large mass of nerve tissue that's protected within the skull. It plays a role in just about every major body system. Some of its main functions include: processing sensory information.
Damage to a discrete part of the brain in the left frontal lobe (Broca's area) of the language-dominant hemisphere has been shown to significantly affect the use of spontaneous speech and motor speech control.
Medulla – The primary role of the medulla is regulating our involuntary life sustaining functions such as breathing, swallowing and heart rate. As part of the brain stem, it also helps transfer neural messages to and from the brain and spinal cord. It is located at the junction of the spinal cord and brain.
The brain is arguably the most important organ in the human body. It controls and coordinates actions and reactions, allows us to think and feel, and enables us to have memories and feelings – all the things that make us human.
Your brain contains billions of nerve cells arranged in patterns that coordinate thought, emotion, behavior, movement and sensation. A complicated highway system of nerves connects your brain to the rest of your body, so communication can occur in split seconds.
The areas of the brain that control both gross and fine motor skills include the cerebral cortex, basal ganglia, and cerebellum. The cerebral cortex controls the movements of the muscles. The basal ganglia control position and voluntary movement. The cerebellum monitors muscles during movement.
The temporal lobe is involved in many reasoning skills, particularly the elaborate task of reading. It is located behind the frontal lobe on both sides of the brain, near and above the ears. The temporal lobe region that controls reading interacts with brain regions involved in hearing and visual recognition.
That's the answer to why we need a brain. The primary purpose of a brain is to move around our environment in a meaningful way. In fact, one could even argue that most of the brain is dedicated towards actions. People often assume that animals with bigger brains are more intelligent because they have more brain cells.
The brain has three main parts: the cerebrum, cerebellum and brainstem. Cerebrum: is the largest part of the brain and is composed of right and left hemispheres. It performs higher functions like interpreting touch, vision and hearing, as well as speech, reasoning, emotions, learning, and fine control of movement.
The brain is made of three main parts: the forebrain, midbrain, and hindbrain. The forebrain consists of the cerebrum, thalamus, and hypothalamus (part of the limbic system). The midbrain consists of the tectum and tegmentum. The hindbrain is made of the cerebellum, pons and medulla.
Emotions, like fear and love, are carried out by the limbic system, which is located in the temporal lobe. While the limbic system is made up of multiple parts of the brain, the center of emotional processing is the amygdala, which receives input from other brain functions, like memory and attention.
Our brain controls our body through connections it makes with the nervous system. The nervous system carries electrical impulses to your brain through the nerves which act as electrical cables. These electrical impulses are made when the body receives a signal.
The parietal lobe is also involved in interpreting pain and touch in the body. Occipital lobe. The occipital lobe is the back part of the brain that is involved with vision. Temporal lobe.
Muscles move on commands from the brain. Single nerve cells in the spinal cord, called motor neurons, are the only way the brain connects to muscles. When a motor neuron inside the spinal cord fires, an impulse goes out from it to the muscles on a long, very thin extension of that single cell called an axon.
Parietal lobe. The parietal lobe gives you a sense of 'me'. It figures out the messages you receive from the five senses of sight, touch, smell, hearing and taste. This part of the brain tells you what is part of the body and what is part of the outside world.
The gray matter is made up of about 100 billion neurons that gather and transmit signals while the white matter is made of dendrites and axons that the neurons use to transmit signals. The brain is composted of about 75% water and is the fattiest organ in the body, consisting of a minimum of 60% fat.
Deep inside the medial temporal lobe is the region of the brain known as the limbic system, which includes the hippocampus, the amygdala, the cingulate gyrus, the thalamus, the hypothalamus, the epithalamus, the mammillary body and other organs, many of which are of particular relevance to the processing of memory.