JavaScript is not enabled!...Please enable javascript in your browser

جافا سكريبت غير ممكن! ... الرجاء تفعيل الجافا سكريبت في متصفحك.


Cerebral Hemisphere : structure of the cerebral hemisphere


 What is the Cerebral Hemisphere?

The brain is the center of the nervous system in all vertebrate and most invertebrate animals. It is located in the head, usually close to the primary sensory apparatus such as vision, hearing, balance, taste, and smell. The brain is the most complex organ in a vertebrate's body.  In a typical human, the cerebral cortex (the largest part) is estimated to contain approximately 15–33 billion neurons, each connected by synapses to several thousand other neurons.

The cerebrum is the large, upper part of the brain. The cerebrum consists of two cerebral hemispheres. Each cerebral hemisphere contains four lobes: the frontal, parietal, temporal, and occipital lobes. The cerebrum controls voluntary muscle movements, vision, hearing, touch, taste, smell, memory, and emotion.

The brain is a highly complex organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. Although the brain is only about 2% of an adult human's body weight, it uses about 20% of the body's oxygen intake. The brain is the most complex organ in a vertebrate's body, and with an adult human weighing about three pounds, the brain makes up about 2% of the body weight, but uses about 20% of the body's oxygen intake. The brain is composed of many different types of cells that work together to perform the various functions of the brain.

What is the Cerebral Hemisphere
Cerebral Hemisphere

The cerebrum is the biggest part of the brain. It oversees intellectual and sensory capacities. The cerebrum is isolated into two side parts, the left and right cerebral hemispheres. The hemispheres are associated with various capacities.

Nervous system

  1. Nervous system
  1. Brain

  2. Cerebral hemispheres

  3. Diencephalon or interbrain

  4. Thalamus

  5. Hypothalamus

  6. Midbrain

  7. Cerebellum

  8. Pons

  9. Medulla oblongata

  10. The spinal cord

  11. The ventricular system

  12. Choroid plexus

List of nerves of the human body

The human nervous system is an amazingly complex network of nerve cells (neurons) that carry messages back and forth between the brain and spinal cord and the rest of the body. The nervous system is made up of the central nervous system (CNS), which includes the brain and spinal cord, and the peripheral nervous system (PNS), which includes all the nerves that branch out from the brain and spinal cord.  The autonomic nervous system (ANS) is a part of the PNS that controls the body's involuntary functions, such as heart rate, blood pressure, digestion, and respiration.


  • Structure of the nervous system

  • Development of the nervous system

  • The spinal cord or medulla spinalis

  • The brain or encephalon

  • The hindbrain or rhombencephalon

  • The midbrain or mesencephalon

  • The forebrain or prosencephalon

  • Composition and central connections of the spinal nerves

  • Pathways from the brain to the spinal cord

  • The meninges of the brain and medulla spinalis

  • The cerebrospinal fluid

  • The cranial nerves

  • The olfactory nerves

  • The optic nerve

  • The oculomotor nerve

  • The trochlear nerve

  • The trigeminal nerve

  • The abducens nerve

  • The facial nerve

  • The vestibulocochlear nerve

  • The glossopharyngeal nerve

  • The vagus nerve

  • The accessory nerve

  • The hypoglossal nerve

  • The spinal nerves

  • The posterior divisions

  • The anterior divisions

  • The thoracic nerves

  • The lumbosacral plexus

  • The sacral and coccygeal nerves

  • The sympathetic nerves

  • The cephalic portion of the sympathetic system

  • The cervical portion of the sympathetic system

  • The thoracic portion of the sympathetic system

  • The abdominal portion of the sympathetic system

  • The pelvic portion of the sympathetic system

  • The great plexuses of the sympathetic system

The structure of the cerebral hemisphere in humans

  • The cerebral cortex is the outermost layer of the cerebrum. It is divided into two hemispheres by the longitudinal fissure. The left and right hemispheres are connected by a bundle of nerve fibers called the corpus callosum. The cerebral cortex is divided into four lobes: the frontal lobe, the parietal lobe, the temporal lobe, and the occipital lobe.

  • The cerebral hemisphere is the largest section of the brain and is divided into four main lobes: the frontal, temporal, parietal, and occipital lobes. Each lobe is responsible for different functions. The frontal lobe controls motor function, the temporal lobe controls hearing and memory, the parietal lobe controls touch and spatial awareness, and the occipital lobe controls vision.

  • The surface of the cerebrum is known as the cortex. It is ready -millimeter-thick and has many folds forming ridges (gyri) and grooves (sulci). A fissure is a deeper groove and is often used interchangeably with sulcus. The cerebrum is split right into a left and right hemisphere via a longitudinal fissure that goes by using many specific names: longitudinal fissure, cerebral fissure, median longitudinal fissure, interhemispheric fissure. Each cerebral hemisphere divides into 4 separate lobes with the aid of an important sulcus, parieto-occipital sulcus, and lateral fissure. The principal sulcus runs posterior-medial to anterior-lateral and separates the frontal lobe from the parietal lobe. The parieto-occipital sulcus separates the parietal lobe from the occipital lobe. The lateral fissure (Sylvian fissure) is a laterally positioned horizontal fissure and separates the temporal lobe from the frontal and parietal lobe.

What is the role of the cerebral hemisphere in humans?

The human brain is divided into two hemispheres, the left and right. The left hemisphere controls the right side of the body, and the right hemisphere controls the left. Each hemisphere has different functions. The left hemisphere is responsible for language, logic, and analytical thinking.

The cerebral hemisphere is responsible for the control of movement and sensation in humans. The left hemisphere controls the right side of the body and the right hemisphere controls the left side of the body. The two hemispheres are connected by a bundle of nerve fibers called the corpus callosum. The cerebral hemispheres are also involved in the control of higher cognitive functions such as language and reasoning.

Left Side - Rational Side

Understanding and use of language (listening, reading, speaking and writing)

Memory for spoken and written messages

Detailed analysis of information

Responds to verbal instructions

Solves problems by logically and sequentially looking at the parts

Looks at differences

Is planned and structured

Prefers established, certain information

Prefers talking and writing

Prefers multiple choice tests

Controls feelings

Prefers ranked authority structures

Right Side - Intuitive Side

Judging the position of things in space

Knowing body position

Understanding and remembering things we do and see

Putting information together for the big picture

Responds to demonstrated instructions

Problem solves with hunches, looking for patterns and configurations

Looks at similarities

Is fluid and spontaneous

Prefers elusive, uncertain information

Prefers drawing and manipulating objects

Prefers open ended questions

Free with feelings

Prefers collegial authority structures

What affects the health of the human cerebral hemisphere?

The human cerebral hemisphere is responsible for a person's intellectual and emotional functions. Its health can be affected by various factors, such as: trauma, infection, tumors, stroke, and degenerative diseases.

Maintaining the health of the human cerebral hemisphere

New research suggests that in sleep, the brain clears out pollution referred to as beta-amyloids that can cause Alzheimer's and other kinds of dementia.

Mushtaq indicates some simple things before you visit the mattress.

  • Do a digital detox. Commit to the same bedtime every night time, and flip off all electronics and monitors at least 30-60 minutes before you hit the pillow.

  • Dump your issues. Jot down any lingering issues and a quick to-do list for tomorrow to help settle your brain. "Our minds are constantly racing, provoking tension," she says. "But if you write it down with pencil and paper, it tells your mind it does not ought to be involved in those matters whilst you sleep."

  • Spend a second meditating. Not only will five-10 minutes of mindful meditation calm your brain and make it easier to sleep, meditation has been proven to lessen tension, melancholy, fatigue, and confusion. "Meditation can gain people with insomnia through assisting them doze off and live asleep. It also allows inflammation in the brain," she says. "Most people do not find the simplest way to sleep better, they can cognizance better and aren't as traumatic.

Cerebral Hemisphere : structure of the cerebral hemisphere

usa-good- clinic

    No comments
    Post a Comment