| Brain: Diencephalon | ||
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| Diagram depicting the main subdivisions of the embryonic vertebrate brain. These regions will later differentiate into forebrain, midbrain and hindbrain structures. | ||
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| Reconstruction of periphera nerves of a human embryo of 10. 2 mm. (Label for Diencephalon is at left. ) | ||
| Latin | diencephalon | |
| Gray's | subject #189 807 | |
| NeuroNames | hier-271 | |
| MeSH | Diencephalon | |
The diencephalon is the region of the brain that includes the thalamus, hypothalamus, epithalamus, prethalamus or subthalamus and pretectum. Latin ( lingua Latīna, laˈtiːna is an Italic language, historically spoken in Latium and Ancient Rome. This is a list of the subjects in Gray's Anatomy: IX Neurology NeuroNames is a system of nomenclature for the human and/or macaque Brain. Medical Subject Headings ( MeSH) is a huge Controlled vocabulary (or metadata system for the purpose of indexing journal articles and books The brain is the center of the Nervous system in animals All Vertebrates and the majority of Invertebrates have a brain The thalamus (from Greek θάλαμος = room chamber, IPA= /ˈθæləməs/ is a pair and symmetric part of the brain The hypothalamus links the Nervous system to the Endocrine system via the Pituitary gland (hypophysis The epithalamus is a dorsal posterior segment of the Diencephalon (a segment in the middle of the Brain also containing the Hypothalamus The' Prethalamus (formerly described as ventral thalamus) or Subthalamus is part of the Diencephalon and therefore part of the Brain The subthalamus is a part of the Diencephalon. Anatomy During development the subthalamus is continuous with the Hypothalamus, but is separated by Pretectum is a structure located in the Midbrain. It receives binocular input from the Eyes and is involved with the pupillary light reflex. The diencephalon is located at the midline of the brain, above the mesencephalon of the brain stem. In biological anatomy the mesencephalon (or midbrain) comprises the Tectum (or corpora quadrigemini Tegmentum, the ventricular mesocoelia (or "iter" The brain stem (or brainstem) is the lower part of the Brain, adjoining and structurally continuous with the Spinal cord. The diencephalon contains the zona limitans intrathalamica as morphological boundary and signalling centre between the prethalamus and the thalamus. The zona limitans intrathalamica (ZLI is a transverse boundary located between the Prethalamus (previously also known as ventral thalamus and the functional distinct Thalamus
Contents |
Organization
- diencephalon
- mid-diencephalic territory
- hypothalamus
- epithalamus
- pretectum
Roles
The diencephalon is the part of the forebrain that contains such important structures as the thalamus, hypothalamus and the posterior portion of the pituitary gland. The' Prethalamus (formerly described as ventral thalamus) or Subthalamus is part of the Diencephalon and therefore part of the Brain The zona limitans intrathalamica (ZLI is a transverse boundary located between the Prethalamus (previously also known as ventral thalamus and the functional distinct Thalamus The thalamus (from Greek θάλαμος = room chamber, IPA= /ˈθæləməs/ is a pair and symmetric part of the brain The hypothalamus links the Nervous system to the Endocrine system via the Pituitary gland (hypophysis The epithalamus is a dorsal posterior segment of the Diencephalon (a segment in the middle of the Brain also containing the Hypothalamus Pretectum is a structure located in the Midbrain. It receives binocular input from the Eyes and is involved with the pupillary light reflex. The thalamus (from Greek θάλαμος = room chamber, IPA= /ˈθæləməs/ is a pair and symmetric part of the brain The hypothalamus links the Nervous system to the Endocrine system via the Pituitary gland (hypophysis In fields of Anatomy, anatomical terms of location are descriptive terms to help identify relative positions or directions within a species The pituitary gland, or hypophysis, is an Endocrine gland about the size of a Pea. The hypothalamus performs numerous vital functions, most of which relate directly or indirectly to the regulation of visceral activities by way of other brain regions and the autonomic nervous system.
See also
External links
Dictionary
diencephalon
-noun
- (neuroanatomy) The region of the human brain, specifically the human forebrain, that includes the thalamus, the hypothalamus, the epithalamus, the prethalamus or subthalamus, and the pretectum.
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