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Cerebrum: Anatomical Overview I01:26

Cerebrum: Anatomical Overview I

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The main and largest component of the human brain is the cerebrum. The cerebrum consists of two main parts: the cerebral cortex, an outer layer with wrinkles or folds known as gyri and shallow grooves called sulci, and a deeper region beneath it. The cerebrum divides into two distinct hemispheres and contains five different lobes: the frontal, parietal, temporal, occipital, and insula. The central sulcus separates the frontal and parietal lobes and two functionally important gyri — the...
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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.
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Cerebrum: Anatomical Overview II01:11

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Each cerebral hemisphere can be divided into three main regions. The outermost region, the cerebral cortex, is a thin layer (2 to 4 millimeters thick) made up of gray matter, consisting of neuron cell bodies, dendrites, glial cells, and blood vessels. The middle region, or white matter, is primarily composed of myelinated nerve fibers organized into three types of large tracts: association fibers, commissures, and projection fibers. Association fibers connect different areas within the same...
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The cerebral cortex, a critical structure of the brain, is intricately divided into two hemispheres, each consisting of four distinct lobes: occipital, temporal, frontal, and parietal. These lobes function cooperatively to regulate various cognitive and sensory functions, forming the basis of our complex neural capabilities.
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The diencephalon, etymologically translated as 'through brain,' plays an integral role as the conduit between the cerebrum and the vast extent of the nervous system. However, the olfactory system is an exception, as it interfaces directly with the cerebrum. The diencephalon, deeply ensconced beneath the cerebrum, primarily consists of three paired structures — the thalamus, hypothalamus, and epithelamus. It also includes accessory structures such as the subthalamus, which houses the...
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Memory is one of the most vital higher mental functions of the brain. Memory is closely related to learning because it enables us to retain information and experiences from our past to use them in our present life. It also helps us to remember facts, events, and skills, such as riding a bike or swimming. There are two types of memory — declarative memory, which involves memorizing facts or events, and procedural memory, which enables us to remember how to do something like writing or...
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Investigation of Spatial Interaction Between Astrocytes and Neurons in Cleared Brains
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The claustrum in review.

Brian N Mathur1

  • 1Department of Pharmacology, University of Maryland School of Medicine Baltimore, MD, USA.

Frontiers in Systems Neuroscience
|April 29, 2014
PubMed
Summary
This summary is machine-generated.

The claustrum, an enigmatic brain structure, has a complex history of study. This review synthesizes research to clarify its structure and potential roles in cognition and action.

Keywords:
attentioncerebral cortexclaustrumconnectionsfunction

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Area of Science:

  • Neuroscience
  • Comparative Anatomy
  • Brain Structure

Background:

  • The claustrum is a poorly understood mammalian brain nucleus.
  • Historical data on its structure and function is often conflicting.
  • Its precise definition and role remain debated.

Purpose of the Study:

  • To synthesize historical and recent research on the claustrum.
  • To formulate a consensus on its structural properties.
  • To explore its potential contributions to cognition and action.

Main Methods:

  • Literature review of anatomical and functional studies.
  • Integration of historical and contemporary data.
  • Theoretical analysis of claustrum function.

Main Results:

  • Conflicting data on claustrum structure and function exists.
  • A synthesis of literature is needed for clarity.
  • New perspectives on its cognitive and behavioral roles are proposed.

Conclusions:

  • The claustrum's enigmatic nature persists despite extensive study.
  • Further research is needed to reconcile conflicting data.
  • Understanding the claustrum offers insights into mammalian brain evolution and function.