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Related Concept Videos

Disorders of the Nervous Tissue01:28

Disorders of the Nervous Tissue

Nervous tissue is a vital component of the human body's communication system, enabling us to perceive and respond to stimuli. However, like all other tissues, it is vulnerable to disorders and diseases that can significantly impact our neurological functioning.
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
Parkinson's disease arises from the...
Neurons as Communicators of the Brain01:22

Neurons as Communicators of the Brain

Neurons, the fundamental units of the brain and nervous system, function as the primary transmitters of information throughout the body. Their ability to communicate through electrical and chemical signals is vital for every bodily function, from regulating the heartbeat to processing complex thoughts. Each neuron has three main components: the cell body (soma), dendrites, and an axon, each specialized to facilitate swift and efficient neural communication.
Cell Body
The cell body, also known...
Neurogenesis and Regeneration of Nervous Tissue01:15

Neurogenesis and Regeneration of Nervous Tissue

In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
Brain Imaging01:14

Brain Imaging

Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans),  magnetic resonance imaging (MRI),  functional magnetic resonance imaging (fMRI), and Transcranial Magnetic Stimulation (TMS).
Neuroplasticity01:01

Neuroplasticity

Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
Organization of the Brain01:31

Organization of the Brain

The brain is an integral component of the nervous system and serves as the center for processing sensory inputs, making decisions, and directing bodily actions. This complex organ is organized into three primary sections: the hindbrain, midbrain, and forebrain, each responsible for a range of vital functions.
Hindbrain
The hindbrain, located at the base of the brain, plays a vital role in regulating automatic processes that sustain life. It includes the medulla oblongata, which is essential for...

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Updated: Jul 3, 2026

Perspectives on Neuroscience
26:41

Perspectives on Neuroscience

Published on: July 31, 2007

[Neurology today].

Petar Slankamenac1, Dragana Stefanović, Milorad Zikić

  • 1Institut za neurologiju, Klinicki centar Vojvodine, Novi Sad.

Medicinski Pregled
|August 1, 2008
PubMed
Summary

Neurological disorders affect one billion people globally, causing significant suffering and mortality, particularly in aging populations. Early diagnosis and advanced imaging techniques are crucial for managing conditions like stroke, multiple sclerosis, dementia, and Parkinson's disease.

Area of Science:

  • Neurology
  • Neuroscience
  • Public Health

Context:

  • Neurological disorders represent a substantial global health burden, impacting millions worldwide and disproportionately affecting the elderly population.
  • The World Health Organization reports that one billion people suffer from neurological disorders, with 6.8 million deaths annually.
  • Economic costs associated with neurological diseases are significant, as exemplified by an estimated 139 billion euros in Europe in 2004.

Purpose:

  • To highlight the prevalence and impact of major neurological disorders, including stroke, multiple sclerosis, dementia, and Parkinson's disease.
  • To underscore the importance of advancements in diagnostic technologies for early detection and management.
  • To emphasize the role of early diagnosis in initiating timely therapeutic interventions for conditions like multiple sclerosis.

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Human Neural Organoids for Studying Brain Cancer and Neurodegenerative Diseases
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Human Neural Organoids for Studying Brain Cancer and Neurodegenerative Diseases

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Neuronavigated Focalized Transcranial Direct Current Stimulation Administered During Functional Magnetic Resonance Imaging
09:33

Neuronavigated Focalized Transcranial Direct Current Stimulation Administered During Functional Magnetic Resonance Imaging

Published on: November 15, 2024

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Last Updated: Jul 3, 2026

Perspectives on Neuroscience
26:41

Perspectives on Neuroscience

Published on: July 31, 2007

Human Neural Organoids for Studying Brain Cancer and Neurodegenerative Diseases
09:36

Human Neural Organoids for Studying Brain Cancer and Neurodegenerative Diseases

Published on: June 28, 2019

Neuronavigated Focalized Transcranial Direct Current Stimulation Administered During Functional Magnetic Resonance Imaging
09:33

Neuronavigated Focalized Transcranial Direct Current Stimulation Administered During Functional Magnetic Resonance Imaging

Published on: November 15, 2024

Summary:

  • Stroke is identified as the most frequent neurological disorder and a leading cause of severe disability, with diagnostic tools like MRI and CT angiography aiding early detection.
  • Multiple sclerosis (MS) diagnosis relies on established criteria, enabling prompt initiation of immunomodulatory therapy for clinically isolated syndromes and definite MS.
  • Dementia and Parkinson's disease (PD) prevalence increases with age. Diagnostic approaches include clinical findings and neuroimaging techniques like CT and MRI for differential diagnosis.

Impact:

  • Improved diagnostic capabilities, including advanced imaging, are critical for the prevention, treatment, and neuroprotection strategies for various neurological conditions.
  • Early diagnosis facilitates timely treatment initiation, potentially improving patient outcomes and reducing long-term disability associated with neurological disorders.
  • Understanding the epidemiology and diagnostic nuances of these diseases is essential for public health planning and resource allocation.