Thursday, May 12, 2022

What Is The Most Important Part Of The Brain

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History Of The Hippocampus

Memory Improvement: The Most Important Part of the Brain

The term hippocampus is derived from the Greek word hippokampus because the structure resembles the shape of a sea horse. The structure was first described by the anatomist Julius Caesar Aranzi. Because the hippocampus has been known of and observed for centuries, it is one of the most studied areas of the brain.

What Are The Main Parts Of The Brain Stem

The brain stem is made up of three parts: the midbrain, the pons and the medulla.

Life Sciences Database/Wikimedia Commons

The midbrain is located underneath the cerebral cortex, near the top of the brain stem. It connects the cerebrum to the brain stem. The midbrain helps process visual and auditory information, such as controlling the eyes and eyelids. It also plays a role in regulating our body temperature and motor movements.

Main Parts of the Midbrain

Life Sciences Database/Wikimedia Commons

Pons is the Latin word for “bridge.” The pons is responsible for connecting the brain stem to the cerebral cortex and the cerebrum to the cerebellum. It can be found right underneath the midbrain and above the medulla oblongata. Although it is the largest section of the brain stem, the pons is only about 2.5 centimeters long. The pons is responsible for assisting in motor functions, particularly for nerves in the face, ears, and eyes. It also plays a role in regulating the intensity and frequency of breathing. It has both gray and white matter, but it does share gray matter with the midbrain. The reticular formation of the pons’ gray matter plays a vital role in dreaming and REM sleep.

Life Sciences Database/Wikimedia Commons

The Cerebellar Peduncles

Introduction: The Human Brain

A false-colour Magnetic Resonance Image of a mid-sagittal section through the head of a normal 42 year-old woman, showing structures of the brain, spine and facial tissues

The brain is the most complex organ in the human body. It produces our every thought, action, memory, feeling and experience of the world. This jelly-like mass of tissue, weighing in at around 1.4 kilograms, contains a staggering one hundred billion nerve cells, or neurons.

The complexity of the connectivity between these cells is mind-boggling. Each neuron can make contact with thousands or even tens of thousands of others, via tiny structures called synapses. Our brains form a million new connections for every second of our lives. The pattern and strength of the connections is constantly changing and no two brains are alike.

It is in these changing connections that memories are stored, habits learned and personalities shaped, by reinforcing certain patterns of brain activity, and losing others.

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Brain Stem Keeps You Breathing And More

Another brain part that’s small but mighty is the brain stem. The brain stem sits beneath the cerebrum and in front of the cerebellum. It connects the rest of the brain to the spinal cord, which runs down your neck and back. The brain stem is in charge of all the functions your body needs to stay alive, like breathing air, digesting food, and circulating blood.

Part of the brain stem’s job is to control your involuntary muscles the ones that work automatically, without you even thinking about it. There are involuntary muscles in the heart and stomach, and it’s the brain stem that tells your heart to pump more blood when you’re biking or your stomach to start digesting your lunch. The brain stem also sorts through the millions of messages that the brain and the rest of the body send back and forth. Whew! It’s a big job being the brain’s secretary!

Information Transport And Boundary Assistants

Brain region function changes in pathological states ...

The gyrus and sulcus are what give the brain its wrinkly appearance. The grooves of the brain are known as the sulci, while the bumps are called the gyri. These folds and ridges help increase how much of the cerebral cortex can fit into the skull. They also create boundaries between the different sections of the brain, such as the two hemispheres and four lobes of the cerebrum.

Albert Kok/Wikimedia Commons

The gyri and sulci create the wrinkles we traditionally associate with the brain./ Bruce Blaus/Wikimedia Commons

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Which Part Of The Brain Do You Think Is Most Important And Why

The Biggest Part: the Cerebrum

The cerebrum is the thinking part of the brain and it controls your voluntary muscles the ones that move when you want them to. So you need your cerebrum to dance or kick a soccer ball. You need your cerebrum to solve math problems, figure out a video game, and draw a picture.

Critical Assessment Of An Invasive Method Of Investigating The Brain

of Investigating the Brain There are many different invasive ways of investigating thee brain including chemical stimulation, ablation and lesioning. All invasive methods artificially stimulate, and actually affect the brain. For my example I am going to look at electrical stimulation. The first person to study electrical stimulation on the brain was by Olds and Milner in 1954. They applied a weak current to the pleasure centre of the brain to a number of rats using

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The Biggest Part: The Cerebrum

The biggest part of the brain is the cerebrum. The cerebrum is the thinking part of the brain and it controls your voluntary muscles the ones that move when you want them to. So you need your cerebrum to dance or kick a soccer ball.

You need your cerebrum to solve math problems, figure out a video game, and draw a picture. Your memory lives in the cerebrum both short-term memory and long-term memory . The cerebrum also helps you reason, like when you figure out that you’d better do your homework now because your mom is taking you to a movie later.

The cerebrum has two halves, with one on either side of the head. Scientists think that the right half helps you think about abstract things like music, colors, and shapes. The left half is said to be more analytical, helping you with math, logic, and speech. Scientists do know for sure that the right half of the cerebrum controls the left side of your body, and the left half controls the right side.

The Lobes Of The Brain

Name the most important part of the human brain.

The brain is separated into four lobes: the frontal, temporal, occipital, and parietal lobes.

Lobes of the brain: The brain is divided into four lobes, each of which is associated with different types of mental processes. Clockwise from left: The frontal lobe is in blue at the front, the parietal lobe in yellow at the top, the occipital lobe in red at the back, and the temporal lobe in green on the bottom.

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Pituitary Gland Controls Growth

The pituitary gland is very small only about the size of a pea! Its job is to produce and release hormones into your body. If your clothes from last year are too small, it’s because your pituitary gland released special hormones that made you grow. This gland is a big player in puberty too. This is the time when boys’ and girls’ bodies go through major changes as they slowly become men and women, all thanks to hormones released by the pituitary gland.

This little gland also plays a role with lots of other hormones, like ones that control the amount of sugars and water in your body.

Gene And Protein Expression

Bioinformatics is a field of study that includes the creation and advancement of databases, and computational and statistical techniques, that can be used in studies of the human brain, particularly in the areas of gene and protein expression. Bioinformatics and studies in genomics, and functional genomics, generated the need for DNA annotation, a transcriptome technology, identifying genes, their locations and functions.GeneCards is a major database.

As of 2017, just under 20,000 protein-coding genes are seen to be expressed in the human, and some 400 of these genes are brain-specific. The data that has been provided on gene expression in the brain has fuelled further research into a number of disorders. The long term use of alcohol for example, has shown altered gene expression in the brain, and cell-type specific changes that may relate to alcohol use disorder. These changes have been noted in the synaptictranscriptome in the prefrontal cortex, and are seen as a factor causing the drive to alcohol dependence, and also to other substance abuses.

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Midbrain Mediating Between Hindbrain And Forebrain:

The midbrain acts as a bridge to transmit signals from hindbrain and forebrain. These signals mostly come from the senses of touch and hearing, collected by the specialized organs, i.e. skin and ears, respectively. The upper part of the midbrain is called optic tectum, which serves to integrate visionary and auditory data.

The Cerebrum The Front Of The Brain

Human Brain//Parts and its function//Cerebrum and ...

The largest part of the brain located in the front is called the cerebrum. The cerebrum is responsible for:

  • Movement
  • Emotions
  • Learning

The cerebrum has 2 parts: the right cerebral hemisphere and the left cerebral hemisphere. They are connected at the bottom and have a deep groove running between them. In general, the right cerebral hemisphere controls the left side of the body, and the left cerebral hemisphere controls the right. The right side is involved with creativity and artistic abilities. The left side is important for logic and rational thinking.

The hemispheres of the cerebrum are divided into lobes, or broad regions of the brain. Each lobe is responsible for a variety of bodily functions:

  • Frontal lobes are involved with personality, speech, and motor development
  • Temporal lobes are responsible for memory, language and speech functions
  • Parietal lobes are involved with sensation
  • Occipital lobes are the primary vision centers

The surface of the cerebrum appears wrinkled and is made up of deep grooves and bumps or folds . The outer part of the cerebrum is called gray matter and contains nerve cells. The inner part is called white matter and contains connections of nerves.

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The Cell Structure Of The Brain

The brain is made up of two types of cells: neurons and glial cells, also known as neuroglia or glia. The neuron is responsible for sending and receiving nerve impulses or signals. Glial cells are non-neuronal cells that provide support and nutrition, maintain homeostasis, form myelin and facilitate signal transmission in the nervous system. In the human brain, glial cells outnumber neurons by about 50 to one. Glial cells are the most common cells found in primary brain tumors.

When a person is diagnosed with a brain tumor, a biopsy may be done, in which tissue is removed from the tumor for identification purposes by a pathologist. Pathologists identify the type of cells that are present in this brain tissue, and brain tumors are named based on this association. The type of brain tumor and cells involved impact patient prognosis and treatment.

The Architecture Of The Brain

The brain is like a committee of experts. All the parts of the brain work together, but each part has its own special properties. The brain can be divided into three basic units: the forebrain, the midbrain, and the hindbrain.

The hindbrain includes the upper part of the spinal cord, the brain stem, and a wrinkled ball of tissue called the cerebellum . The hindbrain controls the bodys vital functions such as respiration and heart rate. The cerebellum coordinates movement and is involved in learned rote movements. When you play the piano or hit a tennis ball you are activating the cerebellum. The uppermost part of the brainstem is the midbrain, which controls some reflex actions and is part of the circuit involved in the control of eye movements and other voluntary movements. The forebrain is the largest and most highly developed part of the human brain: it consists primarily of the cerebrum and the structures hidden beneath it .

When people see pictures of the brain it is usually the cerebrum that they notice. The cerebrum sits at the topmost part of the brain and is the source of intellectual activities. It holds your memories, allows you to plan, enables you to imagine and think. It allows you to recognize friends, read books, and play games.

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Your Brain Has Three Main Jobs

  • Managing your unconscious or ‘automatic’ functions, such as heartbeat, breathing, digestion and control of body temperature.

  • Managing your conscious or ‘motor’ functions, such as movement, gesturing, balance, posture and speech.
  • Thinking, emotions, behaviour and senses .
  • It’s this third job that we’re particularly interested in as this is where your thinking skills come in.

    How Is The Brain Supplied With Blood

    The most important lesson from 83,000 brain scans | Daniel Amen | TEDxOrangeCoast

    The brain needs a steady flow of enough oxygen, glucose, and other nutrients. For that reason, it has a particularly good blood supply. Each side of the brain receives blood through three arteries:

    • In the front, the anterior cerebral artery supplies the tissue behind the forehead and under the crown .
    • The middle cerebral artery is important for the sides and areas that are further inside the brain. The anterior and middle cerebral artery split off from the internal carotid artery, a major blood vessel in the neck.
    • The posterior cerebral artery supplies the back of the head, the lower part of the brain, and the cerebellum. It is supplied with blood from the vertebral arteries, which are also major arteries of the neck.

    Before the three arteries reach their brain region, where they split into smaller branches, they are close together below the brain. In this area, they are connected to each other by smaller blood vessels forming a structure similar to a traffic circle. The arteries are connected to each other in other areas as well. The advantage of these connections is that blood supply problems in the brain can be compensated for to some extent: For example, if a branch of an artery gradually becomes narrower, blood can still flow to the part of the brain it supplies through these alternative routes .

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    Why Is The Brain Important In The Human Body

    The brain is important in the human body because it allows a person to think, feel and store memories, and it controls and coordinates the bodys actions and reactions, states the Atlanta Brain and Spine Care. The brain is an incredibly complex organ composed of many parts, including the cranium, the cerebrum, the brain stem and the cerebellum.

    The cranium is the bony covering that protects the brain. The meninges surround the brain, and they consist of three layers of tissue, which are the pia mater, the arachnoid membrane and the dura mater, Atlanta Brain and Spine Care explains. The front area of the brain is called the cerebrum, the brains largest part. It plays a key role in controlling body temperature, movement, vision, hearing, touch, learning, judgment, problem solving and emotions.

    In front of the cerebellum lies the brain stem, which serves as the bodys main control panel that transmits messages between the brain and the rest of the body, says Atlanta Brain and Spine Care. The brain stem controls essential body functions, such as consciousness, breathing, cardiac function and involuntary muscle movements. The back of the brain is known as the cerebellum, which is mainly a movement control center responsible for fine motor skills, voluntary muscle movements, and balance, posture and equilibrium maintenance.

    What Makes A Brain

    The human brain makes up, alongside the spinal chord, the central nervous system. The brain itself has three main parts:

    • the brainstem, which, like a plants shoot, is elongated, and which connects the rest of the brain with the spinal chord
    • the cerebellum, which is located at the back of the brain and which is deeply involved in regulating movement, motor learning, and maintaining equilibrium
    • the cerebrum, which is the largest part of our brains and fills up most of the skull it houses the cerebral cortex and other, smaller structures, all of which are variously responsible for conscious thought, decision-making, memory and learning processes, communication, and perception of external and internal stimuli

    Brains are made of soft tissue, which includes gray and white matter, containing the nerve cells, non-neuronal cells , and small blood vessels.

    They have a high water content as well as a large amount (nearly

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    The Brain Is The Most Important Components Of The Human Brain

    The brain is the greatest, the most fascinating and the most complex organ of the human been. According to Dr. Wolfe, the human brain weighs about three pound. Humans do not feel its weight because it is full of fluids and it is floating. The human brain consumes ten times more oxygen of all the humans body parts and 25% of the total energy produced by the body. It is not the largest part of the humans body, but it is one of the most important parts. Through the years educators were like doctors

    The Cerebellum’s Left And Right Hemispheres

    PPT

    The cerebellum also has two hemispheres: the left cerebellar hemisphere and the right cerebellar hemisphere. Just as the longitudinal fissure divides the cerebrum’s hemispheres, the “vermis” separates the cerebellum’s hemispheres.

    Cerebellar hemispheres seen from front and back / The Database Center for Life Science/Wikimedia Commons

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    What Is The Gray Matter And White Matter

    Gray and white matter are two different regions of the central nervous system. In the brain, gray matter refers to the darker, outer portion, while white matter describes the lighter, inner section underneath. In the spinal cord, this order is reversed: The white matter is on the outside, and the gray matter sits within.

    Gray matter is primarily composed of neuron somas , and white matter is mostly made of axons wrapped in myelin . The different composition of neuron parts is why the two appear as separate shades on certain scans.

    Each region serves a different role. Gray matter is primarily responsible for processing and interpreting information, while white matter transmits that information to other parts of the nervous system.

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