Biology:Interpeduncular fossa
| Interpeduncular fossa | |
|---|---|
 Base of brain | |
 Section through superior colliculus showing path of oculomotor nerve (interpeduncular fossa not labeled, but visible at bottom center) | |
| Details | |
| Identifiers | |
| Latin | fossa interpeduncularis |
| Anatomical terms of neuroanatomy | |
The interpeduncular fossa is a deep depression of the ventral surface of the midbrain between the two cerebal crura.[1][2][3] It has been found in humans and macaques, but not in rats or mice, showing that this is a relatively new evolutionary region.[4]
Structure
The interpeduncular fossa is a somewhat rhomboid-shaped area of the base of the brain.[5]
Features
The lateral wall of the interpeduncular fossa bears a groove - the oculomotor sulcus - from which[6] rootlets of the oculomotor nerve emerge from the substance of the brainstem and aggregate into a single fascicle.[3][6]
Anatomical relations
The ventral tegmental area lies at the depth of the interpeduncular fossa.[3]
Boundaries
The interpeduncular fossa is bounded in front by the optic chiasma, behind by the antero-superior surface of the pons, antero-laterally by the converging optic tracts, and postero-laterally by the diverging cerebral peduncles.[5]
The floor of interpeduncular fossa, from posterior to anterior, are the posterior perforated substance,[2] corpora mamillaria, tuber cinereum, infundibulum, and pituitary gland.{{Citation needed|date=August 2022}
Contents
The basal veins pass alongside the interpeduncular fossa before joining the great cerebral vein.[7]
Clinical significance
The most common locations for neurocutaneous melanosis have occurred along the interpeduncular fossa, ventral brainstem, upper cervical cord, and ventral lumbosacral cord.[8]
See also
- Interpeduncular cistern
- Cerebral peduncles
Additional images
-
Human brainstem anterior view -
Interpeduncular fossa. Cerebrum. Deep dissection. Inferior dissection.
References
This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
- ↑ Basinger, Hayden; Hogg, Jeffery P. (2022), "Neuroanatomy, Brainstem", StatPearls (Treasure Island (FL): StatPearls Publishing), PMID 31335017, https://www.ncbi.nlm.nih.gov/books/NBK544297/, retrieved 2022-08-08
- ↑ 2.0 2.1 "fossa interpeduncularis". https://medical-dictionary.thefreedictionary.com/fossa+interpeduncularis.
- ↑ 3.0 3.1 3.2 Gray's anatomy : the anatomical basis of clinical practice. Susan Standring (42nd ed.). [New York]. 2021. pp. 456–459. ISBN 978-0-7020-7707-4. OCLC 1201341621.
- ↑ "BrainInfo". http://braininfo.rprc.washington.edu/centraldirectory.aspx?ID=489.
- ↑ 5.0 5.1 "Interpeduncular fossa" (in en). https://www.imaios.com/en/e-Anatomy/Anatomical-Parts/Interpeduncular-fossa.
- ↑ 6.0 6.1 "sulcus of the oculomotor nerve". https://medical-dictionary.thefreedictionary.com/sulcus+of+the+oculomotor+nerve.
- ↑ Gray's anatomy : the anatomical basis of clinical practice. Susan Standring (42nd ed.). [New York]. 2021. p. 422. ISBN 978-0-7020-7707-4. OCLC 1201341621.
- ↑ Islam, Monica P. (2015). "Neurocutaneous melanosis". Neurocutaneous Syndromes. Handbook of Clinical Neurology. 132. pp. 111–7. doi:10.1016/B978-0-444-62702-5.00007-X. ISBN 978-0-444-62702-5.
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