Alar plate - Factbites

Alar plate - Factbites
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Topic: Alar plate

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	Gray's Anatomy - Development of the Skeleton - Yahoo! Reference
		The anterior forms the ethmoidal labyrinth and the lateral and alar cartilages of the nose; the middle gives rise to the small wing of the sphenoid, while from the posterior the great wing and lateral pterygoid plate of the sphenoid are developed ( Figs.
		From the lateral margins of the trabeculæ cranii three processes grow out on either side.
	messenger.yahooligans.com /reference/gray/17.html

	Sub-unit: 1.5 Development of the Rhombencephalon
		Correctly name the derivatives of the alar and basal laminae, the roof plate and the central canal.
		Correctly name the derivatives of the alar and basal laminae, the roof plate and the rhombic lip.
		Draw simple annotated diagrams to illustrate the derivatives of the alar and basal laminae in the myelencephalon and metencephalon regions.
	www.up.ac.za /academic/medicine/anatomy/current/nan211/nan2110105e.html (164 words)

	Role of Pax3/7 in the tectum regionalization -- Matsunaga et al. 128 (20): 4069 -- Development
		The optic tectum differentiates from the alar plate of the mesencephalon,
		Pax3/7 is expressed in the alar plate of the mesencephalon.
		the mesencephalon, that is, a tectum and a torus semicircularis
	dev.biologists.org /cgi/content/abstract/128/20/4069 (272 words)

	Neuroembryology: Medulla: Cell Columns (1/2)
		However, the organization of alar and basal plates differ from of the spinal cord in that, 1) in the medulla and pons the alar plate lies lateral to the basal plate, not dorsal to it, since the
		Medullary pyramids consist of fibers from the cerebral cortex and develop on the ventral surface near the midline.
		The single cell ependymal layer plus adjacent pia (tela choroidea) forms the roof of the medulla.
	isc.temple.edu /neuroanatomy/lab/embryo_new/medulla/1 (296 words)

	Barhl1, a gene belonging to a new subfamily of mammalian homeobox genes, is expressed in migrating neurons of the CNS -- Bulfone et al. 9 (9): 1443 -- Human Molecular Genetics
		In the pretectum it is expressed in two distinct bands: one in the basal plate and the other in the most alar and caudal region (B and M); the arrows in (B) and (C) show the boundary between mesencephalon and diencephalon.
		At E11.5 in the commissural area of the pretectum Barhl1 expression extends basally and a positive band appears in the mesencephalic basal plate (C, K, L, N and O) corresponding to the ventral periaqueductal grey [see arrow in (L)].
		The rostral diencephalic domain extends from the basal plate of prosomeres 3 and 4 (p3, p4) anteriorly, anlage of the mammillary area, to the pretectum (p1) (B, E, F and G) posteriorly.
	hmg.oxfordjournals.org /cgi/content/full/9/9/1443 (6754 words)

	All About Revision Rhinoplasty - Nasal Anatomy & Function
		The greater alar cartilage ( cartilago alaris major; lower lateral cartilage) is a thin, flexible plate, situated immediately below the preceding, and bent upon itself in such a manner as to form the medial and lateral walls of the naris of its own side.
		Inside the aperture of the nostril is a slight dilatation, the vestibule, bounded laterally by the ala and lateral crus of the greater alar cartilage, and medially by the medial crus of the same cartilage.
		This is formed by the medial crura of the greater alar cartilages and by the skin; it is freely movable, and hence is termed the septum mobile nasi.
	www.revisionrhinoplasty.net /nasalanatomy.htm (6754 words)

	X. The Organs of the Senses and the Common Integument. 1b. The Organ of Smell. Gray, Henry. 1918. Anatomy of the Human Body.
		The greater alar cartilage (cartilago alaris major; lower lateral cartilage) is a thin, flexible plate, situated immediately below the preceding, and bent upon itself in such a manner as to form the medial and lateral walls of the naris of its own side.
		The arteries of the external nose are the alar and septal branches of the external maxillary, which supply the alæ and septum; the dorsum and sides being supplied from the dorsal nasal branch of the ophthalmic and the infraorbital branch of the internal maxillary.
		The integument of the dorsum and sides of the nose is thin, and loosely connected with the subjacent parts; but over the tip and alæ it is thicker and more firmly adherent, and is furnished with a large number of sebaceous follicles, the orifices of which are usually very distinct.
	www.bartleby.com /107/223.html (3033 words)

	ua03.wbc
		The dentate nucleus is derived from neuroblasts in the metencephalic alar plate.
		The "open" portion of the myelencephalon surrounds the developing 4th ventricle The alar plates are located lateral to the basal plates because of movement of the medullary walls.
		GVE fibers in the rostral myelencephalon are associated with the ______ cranial nerve(s) in the metencephalon.
	www.kumc.edu /research/medicine/pharmacology/CAI/webCAI/anatomy/ua03.wbc (2875 words)

	ga4-hn9.doc
		The fibers pass through foramina in the cribriform plate of the ethmoid bone, pierce the duran and arachnoid of the brain, and enter the olfactory bulb in the anterior cranial fossa.
		The basic structure of the external nose, including the nasal bones and cartilaginous skeleton (septal, alar and lateral nasal cartilages), and blood supply (especially via the anterior ethmoid artery).
		Attaches from the scaphoid fossa of medial pterygoid plate, spine of sphenoid bone, and cartilage of pharyngotympanic tube TO palatine aponeurosis.
	www.med.unc.edu /wms/firstaid/ga4-hn9.doc (2875 words)

	X. The Organs of the Senses and the Common Integument. 1b. The Organ of Smell. Gray, Henry. 1918. Anatomy of the Human Body.
		The greater alar cartilage ( cartilago alaris major; lower lateral cartilage) is a thin, flexible plate, situated immediately below the preceding, and bent upon itself in such a manner as to form the medial and lateral walls of the naris of its own side.
		This is formed by the medial crura of the greater alar cartilages and by the skin; it is freely movable, and hence is termed the septum mobile nasi.
		Immediately over the incisive canal at the lower edge of the cartilage of the septum a depression, the nasopalatine recess, is seen.
	www.bartleby.com /107/223.html (2875 words)

	Sub-unit: 1.5 Development of the Rhombencephalon
		Correctly name the derivatives of the alar and basal laminae, the roof plate and the central canal.
		Draw simple annotated diagrams to illustrate the derivatives of the alar and basal laminae in the myelencephalon and metencephalon regions.
		Draw annotated diagrams of transverse sections of the developing myelencephalon.
	www.up.ac.za /academic/medicine/anatomy/current/nan211/nan2110105e.html (2875 words)

	Gray's Anatomy - Development of the Nervous System - Yahooligans! Reference
		The cerebral hemispheres arise as diverticula of the alar laminæ of the telencephalon ( Figs.
		The roof-plate of the diencephalon, in front of the pineal body, remains thin and epithelial in character, and is subsequently invaginated by the choroid plexuses of the third ventricle.
		—From the alar lamina of the diencephalon, the thalamus, metathalamus, and epithalamus are developed.
	www.yahooligans.com /reference/gray/184.html (2875 words)

	II. Osteology. 1. Development of the Skeleton. Gray, Henry. 1918. Anatomy of the Human Body.
		The anterior forms the ethmoidal labyrinth and the lateral and alar cartilages of the nose; the middle gives rise to the small wing of the sphenoid, while from the posterior the great wing and lateral pterygoid plate of the sphenoid are developed (Figs.
		These cartilaginous ear-capsules, which are of an oval shape, fuse with the sides of the basilar plate, and from them arise the petrous and mastoid portions of the temporal bones.
		The portions of the notochord which are surrounded by the bodies of the vertebræ atrophy, and ultimately disappear, while those which lie in the centers of the intervertebral fibrocartilages undergo enlargement, and persist throughout life as the central nucleus pulposus of the fibrocartilages (Fig.
	www.bartleby.com /107/17.html (2681 words)

	Animated Brain Samples: Neural Tube
		Note also the sulcus limitans, separating alar plate (sensory cells) from basal plate (motor cells).
		Neural tube cross section at four weeks, showing future cell and fiber layers: ependymal (multiplying nerve cells), mantle (future grey matter), and marginal (future myelinated tracts, or white matter).
	www.brainviews.com /abFiles/DrwNeurtube.htm (44 words)

	Gray, Henry. 1918. Anatomy of the Human Body. Page 181
		Extending forward from the jugular foramen to the foramen lacerum is the petroöccipital fissure occupied, in the fresh state, by a plate of cartilage.
		Behind the basilar portion of the occipital bone is the foramen magnum, bounded laterally by the occipital condyles, the medial sides of which are rough for the attachment of the alar ligaments.
		The foramen magnum transmits the medulla oblongata and its membranes, the accessory nerves, the vertebral arteries, the anterior and posterior spinal arteries, and the ligaments connecting the occipital bone with the axis.
	www.bartleby.com /107/pages/page181.html (569 words)

	All About Revision Rhinoplasty - Nasal Anatomy & Function
		The arteries of the external nose are the alar and septal branches of the external maxillary, which supply the alæ and septum; the dorsum and sides being supplied from the dorsal nasal branch of the ophthalmic and the infraorbital branch of the internal maxillary.
		Behind this process a broad, thin plate, the ethmoidal process, ascends to join the uncinate process of the ethmoid; from its lower border a thin lamina, the maxillary process, curves downward and lateralward; it articulates with the maxilla and forms a part of the medial wall of the maxillary sinus.
		It may be divided into three portions: of these, the anterior articulates with the conchal crest of the maxilla; the posterior with the conchal crest of the palatine; the middle portion presents three well-marked processes, which vary much in their size and form.
	www.revisionrhinoplasty.net /nasalanatomy.htm (1753 words)

	All About Revision Rhinoplasty - Nasal Anatomy & Function
		The greater alar cartilage ( cartilago alaris major; lower lateral cartilage) is a thin, flexible plate, situated immediately below the preceding, and bent upon itself in such a manner as to form the medial and lateral walls of the naris of its own side.
		Above, it is connected by fibrous tissue to the lateral cartilage and front part of the cartilage of the septum; below, it falls short of the margin of the naris, the ala being completed by fatty and fibrous tissue covered by skin.
		The lateral cartilage ( cartilago nasi lateralis; upper lateral cartilage) is situated below the inferior margin of the nasal bone, and is flattened, and triangular in shape.
	www.revisionrhinoplasty.net /nasalanatomy.htm (1753 words)

	Tectum - Wikipedia, the free encyclopedia
		The tectum is the dorsal part of the midbrain, derived in embryonic development from the alar plate of the neural tube.
		See our fundraising page for details, as well as daily reports.
	en.wikipedia.org /wiki/Tectum (191 words)

	II. Osteology. 5c. The Exterior of the Skull. Gray, Henry. 1918. Anatomy of the Human Body.
		Laterally this opening is bounded by sharp margins, to which the lateral and alar cartilages of the nose are attached; below, the margins are thicker and curve medialward and forward to end in the anterior nasal spine.
		They are separated from one another by the vomer, and each is bounded above by the body of the sphenoid, below by the horizontal part of the palatine bone, and laterally by the medial pterygoid plate of the sphenoid.
		Lateral to this aperture is a groove, the sulcus tubæ auditivæ, between the petrous part of the temporal and the great wing of the sphenoid.
	www.bartleby.com /107/46.html (191 words)

	Cerebellum - Wikipedia, the free encyclopedia
		The cerebellum arises from two rhombomeres located in the alar (dorsal, or upper) plate of the neural tube, a structure that eventually forms the brain and spinal cord.
		The cerebellum is located in the inferior posterior portion of the head (the hindbrain), directly dorsal to the brainstem and pons, inferior to the occipital lobe (Figs.
		The cerebellum receives nearly 200 million input fibers; in contrast, the optic nerve is composed of a mere one million fibers.
	en.wikipedia.org /wiki/Cerebellum (4093 words)

	Evolution
		However, the anterior extent of the sulcus limitans is poorly defined, and appears to move ventrally at its rostral end; thus, the entire prosencephalon is arguably derived from the dorsal (sensory) alar plate.
		The six-layered neocortex, which evidently evolved as a result of the integration of the reptilian general pallium and the dorsal ventricular ridge, must be viewed as a major structural innovation of the mammalian brain.
		Compared to the amphibian brain, the most immediately apparent differences are the greatly expanded cerebral hemispheres, and the appearance of a thickened volume of neuropil on the ventricular surface of the lateral wall of each hemisphere, known as the dorsal ventricular ridge.
	www.regena.com /evolution.htm (2197 words)

	Neurulation in amniote vertebrates: a novel view deduced from the use of quail-chick chimeras
		Caudally to the organizer, both in primary and secondary neurulation, the presumptive territory of the alar plates of the future neural tube overlies the precursors of the paraxial mesoderm.
		ABSTRACT Two apparently different mechanisms successively contribute to the formation of the neural tube in the avian embryo: bending of the neural plate during the primary neurulation in the cephalo-cervico-thoracic region and cavitation of the medullary cord during the secondary neurulation in the lumbo-sacral region.
		Neurulation in amniote vertebrates: a novel view deduced from the use of quail-chick chimeras
	www.ijdb.ehu.es /abstract.9807/a909.htm (157 words)

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