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Cerebral peduncles

Dr Jeremy Jones et al.

The cerebral peduncles (also known as the cerebral crus) are the part of the midbrain that link the remainder of the brainstem to the thalami and thereby, the cerebrum. They are the most anterior structure in the midbrain and contain the large ascending and descending tracts that run to and from the cerebrum.

The peduncles form the walls of the fourth ventricle.

The substantia nigra is located within the cerebral peduncles and considered the structure that separates the cerebral crus from the tegmentum.

The term "cerebral peduncles" may be used to refer to a collective structure that includes the cerebral crus and the tegmentum together.

References

Article Information:

System: Central Nervous System

Section: Anatomy

Brainstem (sag) deep dissection Images from Gray's anatomy (out of copyright)

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Brainstem (ventral) Images from Gray's anatomy (out of copyright)

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Brainstem (dorsal) Images from Gray's anatomy (out of copyright)

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Brain dissection (coronal brainstem section) The divisions of the brain are seen here in a coronal slice of the brain. 1. cerebrum 2. thalamus 3. midbrain 4. pons 5. medulla oblongata 6. spinal cord Photos of brain dissection from wikimedia commons and wikipedia.org (en.wikipedia.org/wiki/Midbrain)Brain dissection (inferior surface)The three divisions of the brainstem are seen here in this inferior view.cerebrummidbrainponsmedulla oblongatacerebellumSource: http://www.healcentral.org/healapp/showMetadata?metadataId=40566Permission: CC-BY: http://creativecommons.org/licenses/by/3.0/Original file: http://commons.wikimedia.org/wiki/File:Human_brain_inferior_view_description.JPGBrainstem dissection (lateral view)midbrainponsmedulla oblongatacerebellumcerebrumSource: http://www.healcentral.org/healapp/showMetadata?metadataId=40566Permission: CC-BY: http://creativecommons.org/licenses/by/3.0/Original file: http://commons.wikimedia.org/wiki/File:Human_cerebrum_lateral_view,_a_part_of_temporal_lobe_resected_description.JPGBrainstem dissection (posterior view)taenia choroideathalamus3rd ventriclepineal gland stalkhabenulastria medullarissuperior colliculusbrachium colliculi superiorisinferior colliculusbrachium colliculi inferioriscorpus geniculatum medialesulcus medianuspedunculus cerebellaris superiorpedunculus cerebellaris inferiorpedunculus cerebellaris mediustuberculum anterius thalamicbex, area postremaA: thalamus, B: midbrain, C: pons, D: medulla oblongataSource: http://www.healcentral.org/healapp/showMetadata?metadataId=40566Permission: CC-BY: http://creativecommons.org/licenses/by/3.0/Original file: http://commons.wikimedia.org/wiki/File:Human_brainstem-thalamus_posterior_view_description.JPGBrain dissection (coronal brainstem section)The divisions of the brain are seen here in a coronal slice of the brain.cerebrumthalamusmidbrainponsmedulla oblongataspinal cordSource: http://www.healcentral.org/healapp/showMetadata?metadataId=40566Permission: CC-BY: http://creativecommons.org/licenses/by/3.0/Original file: http://commons.wikimedia.org/wiki/File:Human_brain_frontal_(coronal)_section_description.JPG

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Brainstem Images from Gray's anatomy (out of copyright)

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