Anatomy of the Temporal Lobe

Author

Kiernan, J. A.

Source

Epilepsy Research and Treatment

Issue

Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-12, 12 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2012-03-29

Country of Publication

Egypt

No. of Pages

12

Main Subjects

Diseases

Abstract EN

Only primates have temporal lobes, which are largest in man, accommodating 17% of the cerebral cortex and including areas with auditory, olfactory, vestibular, visual and linguistic functions.

The hippocampal formation, on the medial side of the lobe, includes the parahippocampal gyrus, subiculum, hippocampus, dentate gyrus, and associated white matter, notably the fimbria, whose fibres continue into the fornix.

The hippocampus is an inrolled gyrus that bulges into the temporal horn of the lateral ventricle.

Association fibres connect all parts of the cerebral cortex with the parahippocampal gyrus and subiculum, which in turn project to the dentate gyrus.

The largest efferent projection of the subiculum and hippocampus is through the fornix to the hypothalamus.

The choroid fissure, alongside the fimbria, separates the temporal lobe from the optic tract, hypothalamus and midbrain.

The amygdala comprises several nuclei on the medial aspect of the temporal lobe, mostly anterior the hippocampus and indenting the tip of the temporal horn.

The amygdala receives input from the olfactory bulb and from association cortex for other modalities of sensation.

Its major projections are to the septal area and prefrontal cortex, mediating emotional responses to sensory stimuli.

The temporal lobe contains much subcortical white matter, with such named bundles as the anterior commissure, arcuate fasciculus, inferior longitudinal fasciculus and uncinate fasciculus, and Meyer’s loop of the geniculocalcarine tract.

This article also reviews arterial supply, venous drainage, and anatomical relations of the temporal lobe to adjacent intracranial and tympanic structures.

American Psychological Association (APA)

Kiernan, J. A.. 2012. Anatomy of the Temporal Lobe. Epilepsy Research and Treatment،Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-452010

Modern Language Association (MLA)

Kiernan, J. A.. Anatomy of the Temporal Lobe. Epilepsy Research and Treatment No. 2012 (2012), pp.1-12.
https://search.emarefa.net/detail/BIM-452010

American Medical Association (AMA)

Kiernan, J. A.. Anatomy of the Temporal Lobe. Epilepsy Research and Treatment. 2012. Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-452010

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-452010