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Dec 4, 2025
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Understanding the Brain: Anatomy of Major Parts - Part 1 & 2
kenzie e
@kenzieeffrig
1 / 4
Brain Basics & Cerebrum
Ever wonder how your brain fits so much power into a relatively small space? The cerebral hemispheres make up a whopping 85% of your brain, with the brain stem and cerebellum comprising the rest. To maximize processing power, your brain has ridges called gyri and valleys called sulci that dramatically increase its surface area.
The brain contains both gray matter (40%) and white matter (60%). Gray matter consists of unmyelinated neurons where processing occurs, while white matter contains myelinated neurons that enable communication throughout the brain.
The cerebrum controls your most human abilities: thought, speech, language comprehension, feelings, voluntary actions, and memory storage. It's divided into left and right hemispheres connected by a bridge called the corpus callosum.
💡 The frontal lobe is your brain's "executive center," handling everything from planning and decision-making to speech production (in Broca's Area) and voluntary movement control.
Your temporal lobe processes smell and hearing, helps you recognize faces, and works with the parietal lobe to help you understand language.
Brain Lobes & Specialization
The parietal lobe is your sensory processing center. When you feel touch sensations or need to understand spoken language, your parietal lobe gets to work, often collaborating with the temporal lobe to process complex information.
Located at the back of your brain, the occipital lobe houses your visual cortex, which is essential for processing everything you see. Without it, you wouldn't be able to make sense of visual information from your eyes.
Your brain shows fascinating hemispheric specialization - the left hemisphere controls the right side of your body and excels at facts, figures, and logical reasoning. The right hemisphere controls your left side and tends to shine in creative tasks.
🧠 While we often hear about being "left-brained" or "right-brained," both hemispheres work together for most complex tasks, with each side contributing different strengths to your thinking.
The Cerebellum, Brain Stem & Limbic System
The cerebellum might only make up 10% of your brain's volume, but it contains 50% of your brain's neurons! This powerhouse coordinates all your muscle activities, balance, equilibrium, and posture - enabling you to move smoothly through the world.
The brain stem connects your brain to your spinal cord and contains three crucial regions. The midbrain relays visual and auditory information, the pons passes messages between the cerebrum and cerebellum (and plays a key role in REM sleep), while the medulla oblongata controls vital functions like breathing rate and blood pressure.
Deep within your brain lies the limbic system, your emotional center. It includes structures like the amygdala (processing fear and anger), hippocampus , hypothalamus (regulating hunger, thirst, and temperature), and thalamus (the brain's "relay station" for sensory information).
⚠️ The hippocampus is one of the first regions affected by Alzheimer's disease, which explains why memory problems are often an early sign of this condition.
Brain Protection
Your brain is incredibly valuable, so your body protects it with multiple layers of defense. The meninges are three protective connective tissue coverings surrounding both the brain and spinal cord: the tough dura mater (outermost), the web-like arachnoid, and the pia mater (connected directly to the brain).
Between these protective layers flows cerebrospinal fluid (CSF), which provides crucial shock absorption, support, and nourishment to your brain. The CSF is produced by specialized structures called choroid plexuses.
This elaborate protection system helps shield your brain from impacts and infections while allowing it to function optimally. Without these protective mechanisms, even minor bumps could cause serious damage to the delicate neural tissue.
🔍 Think of your brain's protection system like a high-tech phone case: the meninges are the hard outer shell and cushioned interior, while the CSF works like shock-absorbing gel to prevent damage during impacts.
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
Where can I download the Knowunity app?
You can download the app in the Google Play Store and in the Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
Understanding the Brain: Anatomy of Major Parts - Part 1 & 2
kenzie e
@kenzieeffrig
The brain is the command center of the human body, controlling everything from thoughts and emotions to movement and basic bodily functions. This complex organ is divided into specialized regions that work together to create our human experience, each with... Show more
Brain Basics & Cerebrum
Ever wonder how your brain fits so much power into a relatively small space? The cerebral hemispheres make up a whopping 85% of your brain, with the brain stem and cerebellum comprising the rest. To maximize processing power, your brain has ridges called gyri and valleys called sulci that dramatically increase its surface area.
The brain contains both gray matter (40%) and white matter (60%). Gray matter consists of unmyelinated neurons where processing occurs, while white matter contains myelinated neurons that enable communication throughout the brain.
The cerebrum controls your most human abilities: thought, speech, language comprehension, feelings, voluntary actions, and memory storage. It's divided into left and right hemispheres connected by a bridge called the corpus callosum.
💡 The frontal lobe is your brain's "executive center," handling everything from planning and decision-making to speech production (in Broca's Area) and voluntary movement control.
Your temporal lobe processes smell and hearing, helps you recognize faces, and works with the parietal lobe to help you understand language.
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Brain Lobes & Specialization
The parietal lobe is your sensory processing center. When you feel touch sensations or need to understand spoken language, your parietal lobe gets to work, often collaborating with the temporal lobe to process complex information.
Located at the back of your brain, the occipital lobe houses your visual cortex, which is essential for processing everything you see. Without it, you wouldn't be able to make sense of visual information from your eyes.
Your brain shows fascinating hemispheric specialization - the left hemisphere controls the right side of your body and excels at facts, figures, and logical reasoning. The right hemisphere controls your left side and tends to shine in creative tasks.
🧠 While we often hear about being "left-brained" or "right-brained," both hemispheres work together for most complex tasks, with each side contributing different strengths to your thinking.
Sign up to see the contentIt's free!
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Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
The Cerebellum, Brain Stem & Limbic System
The cerebellum might only make up 10% of your brain's volume, but it contains 50% of your brain's neurons! This powerhouse coordinates all your muscle activities, balance, equilibrium, and posture - enabling you to move smoothly through the world.
The brain stem connects your brain to your spinal cord and contains three crucial regions. The midbrain relays visual and auditory information, the pons passes messages between the cerebrum and cerebellum (and plays a key role in REM sleep), while the medulla oblongata controls vital functions like breathing rate and blood pressure.
Deep within your brain lies the limbic system, your emotional center. It includes structures like the amygdala (processing fear and anger), hippocampus , hypothalamus (regulating hunger, thirst, and temperature), and thalamus (the brain's "relay station" for sensory information).
⚠️ The hippocampus is one of the first regions affected by Alzheimer's disease, which explains why memory problems are often an early sign of this condition.
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Brain Protection
Your brain is incredibly valuable, so your body protects it with multiple layers of defense. The meninges are three protective connective tissue coverings surrounding both the brain and spinal cord: the tough dura mater (outermost), the web-like arachnoid, and the pia mater (connected directly to the brain).
Between these protective layers flows cerebrospinal fluid (CSF), which provides crucial shock absorption, support, and nourishment to your brain. The CSF is produced by specialized structures called choroid plexuses.
This elaborate protection system helps shield your brain from impacts and infections while allowing it to function optimally. Without these protective mechanisms, even minor bumps could cause serious damage to the delicate neural tissue.
🔍 Think of your brain's protection system like a high-tech phone case: the meninges are the hard outer shell and cushioned interior, while the CSF works like shock-absorbing gel to prevent damage during impacts.
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
Where can I download the Knowunity app?
You can download the app in the Google Play Store and in the Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
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Can't find what you're looking for? Explore other subjects.
Students love us — and so will you.
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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user