The cerebrum (aka the telencephalon), is the largest and most developed region of the brain. It encompasses about two-thirds of the brain mass and lies over and around most of the structures of your brain. The word cerebrum comes from the same word in Latin cerebrum, meaning “brain.”
It plays a vital role in a variety of your daily functions from your sensations of touch and vision, all the way to your reasoning and emotions.
There is no one part of the brain that you can consider being more important over the other. The cerebrum, however, is one you can consider to be the ‘master’, as It owns about two-thirds of the total brain mass and covers most of the primary brain structures.
When you reach into your pocket to grab change, it’s the cerebrum that allows you to tell nickels, quarters, and dimes apart without looking at them.
In this article, we’ll be taking a brief journey and explain everything about the main functions and characteristics of the cerebrum.
Fun Facts: About The Cerebrum
How big is the cerebrum?
- Amazingly, The surface of the cerebrum (cerebral cortex) accounts for 85% of the total brain weight and houses up to 10 billion neurons firing about 50 trillion synapses!
- If you were to spread it out, it would actually take up about 2 1/2 square feet.
- It is the most recent evolutionary development in our physiology. Also, it’s the largest most developed of the major regions of the brain.
- It isn’t all about movement and coordination, it also plays a role in perception, imagination, thought, judgment, and decision making.
The Cerebrum: A Definition
Before we get into details, let’s first start with the basics and define the cerebrum based on the leading digital online source Dictionary.com,
/suh-ree-bruh m, ser-uh-/
- The anterior and largest part of the brain, consisting of two hemispheres. It serves to control voluntary movements and coordinate mental actions.
- The forebrain and the midbrain.
The cerebrum is also Latin for “brain”. As the anterior portion of the forebrain, the cerebrum takes up the entire uppermost portion of the brain and is covered by the cerebral cortex.
Where Is The Cerebrum Located?
The Cerebrum consists of the right and left cerebral hemispheres. The left hemisphere coordinates the right side of the body, while the right hemisphere controls the left side.
The two hemispheres are held together by a thick bundle of nerve fibers called the corpus callosum. This structure relays messages between the hemispheres, allowing uninterrupted communication across the cerebrum.
As a rule, the cerebrum develops last in the human embryo during the second stage of development of the central nervous system. In fact, it’s the most highly developed part of the human brain.
Is cerebrum same as cerebral cortex?
So, it is a part of it but not exactly…
The cerebral cortex is the top surface part covering the cerebrum and is covered with grooves and ridges.
What are these grooves and ridges called and what do they do?
If you’ve ever seen a 3D model of the human brain, you may have noticed that the surface of the cerebrum is covered in grooves and ridges. The grooves are called sulci (singular sulcus) and the ridges are called gyri (singular gyrus).
Both sulci and gyri serve one purpose – to expand the surface area of the brain to accommodate more neurons. This, in turn, enhances the brain’s cognitive function despite the limitation in size and illustrates just how adaptable this organ truly is.
The Components and Function Of The Cerebrum?
This is by far one of the most complex parts of the brain to explain regarding its functions. It’s because of how the cerebrum encapsulates most of the major brain regions along with their many subdivisions and sub-regions.
They are quite a few, with each responsible for a variety of functions. Let’s try to and break it down. As you read along and just remember that the cerebral, usually refers outermost part of the brain, while the cerebrum usually refers to the inner parts that lay beneath the cerebral.
Function of the cerebrum: a short answer
As a major part of the brain, the cerebrum is responsible for managing emotions, hearing, vision, personality and the control of voluntary actions.
It’s also in charge of other higher brain functions, this includes:
- Learning and Understanding
- Organization and Planning
- Interpretation and Processing of sensory information
Function of the cerebrum: a detailed look
What are the components of the cerebrum?
The cerebrum is responsible for thinking, learning, and reasoning. It is housed by an outer portion called cerebral cortex (gray matter).
In a way, the cerebrum houses most of everything else within it, as it is the biggest part of the brain. You’ll notice that the 4 major lobes of the brain are essentially a part of the cerebral cortex too.
Divided into four lobes and their functions, the frontal lobe is important for cognitive functions and control of voluntary movement or activity. The parietal lobe processes information about temperature, taste, touch, and movement.
The occipital lobe is primarily responsible for vision. And last but not least, the temporal lobe processes memories, integrating them with sensations of taste, sound, sight, and touch.
Subdivisions of your cerebrum:
The cerebrum also consists of both the diencephalon and the telencephalon.
Both of which include subparts called the thalamus, hypothalamus, and the pineal gland, which essentially make up two major divisions of the forebrain.
When it comes to your cerebral cortex, that area handles a portion of the important brain functions such as the processing of sensory information.
In tandem with the limbic system, certain areas of the cerebrum are also in charge of emotions. These range from love and happiness to fear and anger. What’s more, the cerebrum also allows you to manage your anger in real time.
Your cerebrum processes all this information and relays signals that produce the appropriate response.
It’s not about mental intelligence, it’s about mental fitness.
— Jim Kwik, Author of Mindvalley’s Superbrain Program
Does the cerebrum control memory?
As mentioned earlier, the cerebral cortex and cerebrum play a rather important role in memory.
Namely, the cerebral cortex plays a vital role in the development and processing of both short and long-term memory. The cerebrum also combines events with sensory information like objects and faces to ensure they are properly stored in your long-term memory.
The hippocampus, another part of the cerebrum, helps translate short-term memory into long-term memory. In addition, this area of the cerebrum also triggers the growth of new neurons that allow the brain to better conserve these memories.
And finally, the basal ganglia at the very center of the cerebrum helps form and retrieve procedural memory. This is a type of long-term memory that explains how to perform certain tasks and actions.
When you learn to tie your shoes, play an instrument, or ride a bicycle, all that information is stored in your procedural memory. The basal ganglia helps ensure you don’t forget any of the skills and actions you’ve previously learned.
Most people think that learning is the key to self-developmentIt’s how we were raised – when we were young, we studied algebra, read history, and memorized the names of elements on the periodic table.
But once you grow up and experience life, you realize that you can’t ‘learn certain things – like personal growth.
Vishen Lakhiani, founder of Mindvalley and New York Times Bestselling author, discovered that the key to self-development was not to ‘learn’, but rather, to ‘transform’.
If You Want To ‘Transform’ And Are Ready To Accelerate Your Own Personal Growth, Then Join Vishen Lakhiani's FREE Masterclass, Where You’ll Learn:
✅ The Framework For Flow: The 3 Big Pillars of Life which will help you to rapidly grow on autopilot, so personal development happens naturally.
✅ How you can harness the energy surrounding you to automatically attract the tools you need to unlock your true potential, allowing you to easily make transformative shifts in your life.
✅ Apply the #1 principle to eliminate obstacles in your life, and subsequently show up as your best self and make a positive impact on the world.
Discover The Proven Framework for Extraordinary Transformation and a Brand New You in 2020
What was your favorite fact you learned today? Let us know in the comments below!