midbrain tectum
Information about midbrain tectum
| Brain: | ||
|---|---|---|
| Latin | t. mesencephali | |
| Part of | Midbrain | |
| NeuroNames | hier-448 | |
| Dorlands/Elsevier | t_03/12792309 | |
It is derived in embryonic development from the alar plate of the neural tube. In adult humans it is present only in the mesencephalon as the inferior and the superior colliculi.
- The superior colliculus is involved in preliminary visual processing and control of eye movements. In non-mammalian vertebrates it serves as the main visual area of the brain, functionally analogous to the visual areas of the cerebral cortex in mammals.
- The inferior colliculus is involved in auditory processing. It receives input from various brain stem nuclei and projects to the medial geniculate nucleus of the thalamus, which relays auditory information to the primary auditory cortex.
The term "tectal plate" (or "quadrigeminal plate") is used to describe the junction of the gray and white matter in the embryo. (l_02/12476795 at Dorland's Medical Dictionary, NeuroNames ancil-453)
See also
External links
Latin}}}
Official status
Official language of: Vatican City
Used for official purposes, but not spoken in everyday speech
Regulated by: Opus Fundatum Latinitas
Roman Catholic Church
Language codes
ISO 639-1: la
ISO 639-2: lat
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Official status
Official language of: Vatican City
Used for official purposes, but not spoken in everyday speech
Regulated by: Opus Fundatum Latinitas
Roman Catholic Church
Language codes
ISO 639-1: la
ISO 639-2: lat
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NeuroNames is a system of nomenclature for the human and/or macaque brain.
It is maintained by the University of Washington and is a part of a tool called "BrainInfo". BrainInfo helps one identify structures in the brain.
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It is maintained by the University of Washington and is a part of a tool called "BrainInfo". BrainInfo helps one identify structures in the brain.
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Elsevier, the world's largest publisher of medical and scientific literature, forms part of the Reed Elsevier group. Based in Amsterdam, the company has substantial operations in the UK, USA and elsewhere.
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In animals, the brain or encephalon (Greek for "in the skull"), is the control center of the central nervous system, responsible for behavior. The brain is located in the head, protected by the skull and close to the primary sensory apparatus of vision, hearing,
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In biological anatomy, the mesencephalon (or midbrain) is the middle of three vesicles that arise from the neural tube that forms the brain of developing animals. Caudally the mesencephalon adjoins the pons (metencephalon) and rostrally it adjoins the diencephalon
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The alar plate (or alar lamina) is a neural structure in the embryonic nervous system, part of the dorsal side of neural tube, that involves the communication of general somatic and general visceral sensory impulses.
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neural tube is the embryo's precursor to the central nervous system, which comprises the brain and spinal cord. The neural groove gradually deepens as the neural folds become elevated, and ultimately the folds meet and coalesce in the middle line and convert the groove into a
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The inferior colliculi (Latin, lower hill) together with the superior colliculi form the eminences of the corpora quadrigemina, and also part of the tectal region of the midbrain.
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The superior colliculus (Latin, higher hill) is a paired structure that is part of the brain's tectal area.
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Structure and relations
The two superior colliculi sit below the thalamus and surround the pineal gland in the mesencephalon of vertebrate brains...... Click the link for more information.
In psychology, visual perception is the ability to interpret visible light information reaching the eyes which is then made available for planning and action. The resulting perception is also known as eyesight, sight or vision.
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cerebral cortex is a structure within the vertebrate brain with distinct structural and functional properties. In non-living, preserved brains, the outermost layers of the cerebrum has a grey color, hence the name "grey matter".
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The Medial Geniculate Nucleus or Medial Geniculate Body (MGB) is part of the auditory thalamus and represents the thalamic relay between the inferior colliculus (IC) and the auditory cortex (AC).
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For the computer game developer, see Thalamus Ltd.
The thalamus (from Greek θάλαμος = bedroom, chamber, IPA= /ˈθæləməs/) is a pair and symmetric part of the brain.
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The primary auditory cortex is the region of the brain that is responsible for processing of auditory (sound) information.
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Function of the Primary Auditory Cortex
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The paramedian pontine reticular formation, or PPRF, is part of the pontine reticular formation, a brain region without clearly defined borders in the center of the pons. It is involved in the coordination of eye movements, particularly horizontal gaze and saccades.
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spinal chord is a thin, tubular bundle of nerves that is an extension of the central nervous system from the brain and is enclosed in and protected by the bony vertebral column.
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In the brain, the corpora quadrigemina (Latin for "quadruplet bodies") are the four colliculi—two inferior, two superior—located on the tectum the dorsal aspect of the midbrain.
The corpora quadrigemina are reflex centers involving vision and hearing.
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The corpora quadrigemina are reflex centers involving vision and hearing.
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Dorland's is the brand name of several different medical dictionaries and ancillary products, chiefly Dorland's Illustrated Medical Dictionary (currently in its 31st edition) and Dorland's Pocket Medical Dictionary (currently in its 27th edition).
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NeuroNames is a system of nomenclature for the human and/or macaque brain.
It is maintained by the University of Washington and is a part of a tool called "BrainInfo". BrainInfo helps one identify structures in the brain.
..... Click the link for more information.
It is maintained by the University of Washington and is a part of a tool called "BrainInfo". BrainInfo helps one identify structures in the brain.
..... Click the link for more information.
Brain (neural tube)
Rhombencephalon (hindbrain)
Myelencephalon
- medulla oblongata
- medullary pyramids
Metencephalon
- pons
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Elsevier, the world's largest publisher of medical and scientific literature, forms part of the Reed Elsevier group. Based in Amsterdam, the company has substantial operations in the UK, USA and elsewhere.
..... Click the link for more information.
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In animals, the brain or encephalon (Greek for "in the skull"), is the control center of the central nervous system, responsible for behavior. The brain is located in the head, protected by the skull and close to the primary sensory apparatus of vision, hearing,
..... Click the link for more information.
..... Click the link for more information.
In biological anatomy, the mesencephalon (or midbrain) is the middle of three vesicles that arise from the neural tube that forms the brain of developing animals. Caudally the mesencephalon adjoins the pons (metencephalon) and rostrally it adjoins the diencephalon
..... Click the link for more information.
..... Click the link for more information.
In the brain, the corpora quadrigemina (Latin for "quadruplet bodies") are the four colliculi—two inferior, two superior—located on the tectum the dorsal aspect of the midbrain.
The corpora quadrigemina are reflex centers involving vision and hearing.
..... Click the link for more information.
The corpora quadrigemina are reflex centers involving vision and hearing.
..... Click the link for more information.
The inferior colliculi (Latin, lower hill) together with the superior colliculi form the eminences of the corpora quadrigemina, and also part of the tectal region of the midbrain.
..... Click the link for more information.
..... Click the link for more information.
The superior colliculus (Latin, higher hill) is a paired structure that is part of the brain's tectal area.
..... Click the link for more information.
Structure and relations
The two superior colliculi sit below the thalamus and surround the pineal gland in the mesencephalon of vertebrate brains...... Click the link for more information.
The subcommissural organ is a circumventricular organ consisting of ependymal cells which secrete somatostatin.
It is named for its location relative to the posterior commissure.
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It is named for its location relative to the posterior commissure.
External links
- http://www.bu.
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Pretectum is a structure located in the midbrain. It receives binocular input from the eyes and is involved with the pupillary light reflex.
The pretectum, after receiving binocular input, outputs to the Edinger-Westphal nucleus in the midbrain, to the Cilio-spinal nucleus
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The pretectum, after receiving binocular input, outputs to the Edinger-Westphal nucleus in the midbrain, to the Cilio-spinal nucleus
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The cerebral peduncle, by most classifications, is everything in the mesencephalon except the tectum. The region includes the midbrain tegmentum, crus cerebri, substantia nigra and pretectum. The peduncles are also known as the crus cerebri.
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