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Related Concept Videos

Diencephalon: Thalamus and Information Relay01:27

Diencephalon: Thalamus and Information Relay

The thalamus, often called “the gateway to the cerebral cortex,” is vital in processing and directing sensory and motor signals throughout the brain. Almost all inputs destined for the cerebral cortex, except for olfactory signals, are relayed through the thalamus. The thalamus is  a sophisticated relay station, channeling information from various brain regions to the cerebral cortex, as well as a filter, prioritizing certain signals over others based on current physiological states or needs.
Cerebellum: Anatomical Regions01:17

Cerebellum: Anatomical Regions

The cerebellum, also known as the "little brain," is located in the posterior cranial fossa, inferior to the tentorium cerebelli and dorsal to the brainstem. It plays a significant role in motor control, coordination, and proprioception.
Cerebellar Structure
Externally, the cerebellum features a highly convoluted surface with numerous folia (narrow ridges) separated by shallow sulci (grooves). The cerebellum is divided into two hemispheres by a thin median structure known as the vermis. The...
Brainstem01:19

Brainstem

The brainstem, located inferior to the brain and superior to the spinal cord, serves as a bridge between the cerebrum and the spinal cord. It plays a vital role in relaying information and controlling critical life functions. It comprises three primary regions: the midbrain, pons, and medulla oblongata.
The Midbrain
The midbrain is located beneath the diencephalon and connects the cerebrum with the lower parts of the brain. The cerebral peduncles are prominent midbrain structures that house the...
Overview of Somatic Sensory Pathways01:29

Overview of Somatic Sensory Pathways

Somatic sensory or somatosensory pathways refer to the neural pathways that carry information related to touch, pressure, pain, temperature, and proprioception from the skin, muscles, tendons, and joints to the brain. These pathways involve several stages of processing and integration of sensory information.
The somatosensory system is divided into three main pathways: the dorsal (or posterior) column-medial lemniscus, spinothalamic (or anterolateral), and spinocerebellar pathways.
The dorsal...
Major Somatic Sensory Pathways01:28

Major Somatic Sensory Pathways

Sensory impulses related to touch, pressure, vibration, and proprioception from various body parts, such as the limbs, trunk, neck, and posterior head, travel to the cerebral cortex through the posterior column-medial lemniscus pathway. The pathway’s name derives from the two white-matter tracts that convey the impulses: the spinal cord's posterior column and the brainstem's medial lemniscus. First-order sensory neurons extend their axons into the spinal cord, forming the posterior columns...
Indirect Motor Pathways01:22

Indirect Motor Pathways

The indirect motor or extrapyramidal pathways originate in the brainstem, the lower portion of the brain that connects it to the spinal cord. They consist of several distinct tracts, each with specialized functions. The four main tracts of the indirect motor pathways are the vestibulospinal tract, the reticulospinal tract, the tectospinal tract, and the rubrospinal tract.
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...

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Related Experiment Video

Updated: Jul 19, 2026

Revealing Neural Circuit Topography in Multi-Color
09:11

Revealing Neural Circuit Topography in Multi-Color

Published on: November 14, 2011

Origin of the precerebellar system.

C I Rodriguez1, S M Dymecki

  • 1Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA.

Neuron
|October 31, 2000
PubMed
Summary

The precerebellar system, crucial for motor coordination, originates from dorsal rhombic neuroepithelium. Gene expression patterns reveal distinct progenitor populations within this system, guiding their future axonal projections to the cerebellum.

Area of Science:

  • Neuroscience
  • Developmental Biology
  • Cerebellar Research

Background:

  • The precerebellar system is vital for cerebellar function and coordinated motor activity.
  • Understanding the developmental origins of the precerebellar system is key to comprehending cerebellar circuitry.

Purpose of the Study:

  • To investigate the developmental origins of the precerebellar system in mice.
  • To identify distinct progenitor populations within the precerebellar primordium based on gene expression.
  • To determine if gene expression patterns correlate with specific axonal projection types (mossy vs. climbing fibers).

Main Methods:

  • Utilized a FLP recombinase-based fate mapping technique in mice.
  • Performed fate mapping at the resolution of gene expression patterns.

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Ex Vivo Culture of Chick Cerebellar Slices and Spatially Targeted Electroporation of Granule Cell Precursors

Published on: December 14, 2015

Purification of Prominin-1+ Stem Cells from Postnatal Mouse Cerebellum
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Purification of Prominin-1+ Stem Cells from Postnatal Mouse Cerebellum

Published on: April 12, 2020

Related Experiment Videos

Last Updated: Jul 19, 2026

Revealing Neural Circuit Topography in Multi-Color
09:11

Revealing Neural Circuit Topography in Multi-Color

Published on: November 14, 2011

Ex Vivo Culture of Chick Cerebellar Slices and Spatially Targeted Electroporation of Granule Cell Precursors
10:02

Ex Vivo Culture of Chick Cerebellar Slices and Spatially Targeted Electroporation of Granule Cell Precursors

Published on: December 14, 2015

Purification of Prominin-1+ Stem Cells from Postnatal Mouse Cerebellum
07:04

Purification of Prominin-1+ Stem Cells from Postnatal Mouse Cerebellum

Published on: April 12, 2020

  • Analyzed embryonic Wnt1 expression in relation to precerebellar progenitor populations.

    • Main Results:

    • Provided direct evidence that the ventral brainstem precerebellar system originates from dorsally located rhombic neuroepithelium.
    • Uncovered an unexpected subdivision within the precerebellar primordium.
    • Demonstrated that embryonic Wnt1 expression distinguishes progenitors of mossy fiber-projecting neurons from climbing fiber-projecting neurons.

    Conclusions:

    • The rhombic neuroepithelium is the source of the precerebellar system.
    • Differential gene expression, specifically Wnt1, acts as an early marker for distinct precerebellar progenitor fates.
    • Gene expression patterns, rather than final position, initially segregate precerebellar progenitors based on their axonal projection targets and synaptic partners.