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Topic: Orbit anatomy

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	Orbit - LearnThis.Info Enclyclopedia (Site not responding. Last check: 2007-11-06)
		As an object orbits another object, periapsis is that point at which the orbiting object is closest to the object being orbited; apoapsis is that point at which the orbiting object is farthest from the object being orbited.
		An open orbit has the shape of a hyperbola (or in the limiting case, a parabola); the bodies approach each other for a while, curve around each other around the time of their closest approach, and then separate again forever.
		The orbit of a planet around the Sun is an ellipse, with the Sun in one of the focal points of the ellipse.
	encyclopedia.learnthis.info /o/or/orbit.html (2016 words)

	Orbit (Site not responding. Last check: 2007-11-06)
		He found that the orbits of the planet s in our solar system are elliptical, not circular (or epicyclic), as had previously been believed.
		Isaac Newton demonstrated that Kepler's laws were derivable from his theory of gravitation and that, in general, the orbits of bodies responding to the force of gravity were conic section s.
		Newton showed that a pair of bodies follow orbits of dimensions that are in inverse proportion to their mass es about their common center of mass.
	www.serebella.com /encyclopedia/article-Orbit.html (1912 words)

	orbit. The Columbia Encyclopedia, Sixth Edition. 2001-05 (Site not responding. Last check: 2007-11-06)
		The orbits of the solar planets, while elliptical, are almost circular; on the other hand, the orbits of many of the extrasolar planets discovered during the 1990s are highly elliptical.
		Modern methods for computing the orbit of a planet or other body have been refined from methods developed by Newton, Laplace, and Gauss, in which all the needed quantities are acquired from three separate observations of the planet’s apparent position.
		Natural satellites that are close to their primaries tend to have nearly circular orbits in the same plane as that of the planet’s equator, while more distant satellites may have quite eccentric orbits with large inclinations to the planet’s equatorial plane.
	www.bartleby.com /65/or/orbit.html (566 words)

	eMedicine - Orbit Anatomy : Article by Christopher M Hampson, MD (Site not responding. Last check: 2007-11-06)
		The infraorbital sulcus crosses the floor of the orbit and carries the infraorbital artery, infraorbital vein, and infraorbital nerve from the infraorbital fissure to the infraorbital foramen.
		The lacrimal gland is oriented in the superior-temporal region of the orbit and lies in the fossa glandular lacrimalis.
		The trochlea is a cartilaginous saddle with dense fibrous condensations that attach to the periosteum of the orbit.
	www.emedicine.com /ent/topic4.htm (3712 words)

	IX. Neurology. 1F. The Abducent Nerve. Gray, Henry. 1918. Anatomy of the Human Body. (Site not responding. Last check: 2007-11-06)
		It enters the orbit through the superior orbital fissure, above the ophthalmic vein, from which it is separated by a lamina of dura mater.
		As these nerves pass forward to the superior orbital fissure, the oculomotor and ophthalmic divide into branches, and the abducent nerve approaches the others; so that their relative positions are considerably changed.
		In the orbit, the trochlear, frontal, and lacrimal nerves lie immediately beneath the periosteum, the trochlear nerve resting on the Obliquus superior, the frontal on the Levator palpebræ superioris, and the lacrimal on the Rectus lateralis.
	www.bartleby.com /107/201.html (619 words)

	e-Ophthalmology.net: Anatomy of the Eye (Site not responding. Last check: 2007-11-06)
		Each eye includes a lens system to focus the image, a layer of photosensitive cells, and a network of cells and nerves that collect, process and transmit visual information to the brain, all surrounded by a fibrous protective globe.
		Each eye is composed of a tough outer layer, the sclera and cornea; a middle layer, the choroid, ciliary body and iris; and the inner layer of nerve tissue called the retina.
		orbit: This cone shaped cavity in the skull is formed by the frontal, maxilla, zygomatic, sphenoid, ethmoid, lacrimal and palatine bones.
	www.e-ophthalmology.net /anatomy.html (997 words)

	Comparative Ophthalmology Notes: Chapter 13 - Orbit and Globe (Site not responding. Last check: 2007-11-06)
		Adjacent to the bony wall of the orbit is modified connective tissue known as the periorbita which is continuous with the periosteum of the bones.
		Because of the shape of the orbit and because the globe is tightly encased, removal of the globe is difficult.
		This should be done as soon as possible after phthisis bulbi is recognized, and as much of the optic nerve as possible should be removed with the globe, with appropriate care not to apply too much traction or else there may be damage to the optic chiasm.
	www.vetmed.ucdavis.edu /courses/vet_eyes/conotes/con_chapter_13.html (5715 words)

	[No title]
		Any closed path followed by a particle or body, such as the orbit of a celestial body under the influence of gravity, the elliptical path followed by electrons in the Bohr theory, or the paths followed by particles in a circular particle accelerator.
		] The direction that the path of an orbiting body takes; in the case of an earth satellite, this path may be defined by the angle of inclination of the path to the equator.
		] The orbit space of a G space X is the topological space whose points are equivalence classes obtained by identifying points in X which have the same G orbit and whose topology is the largest topology that makes the function which sends x to its orbit continuous.
	www.accessscience.com /Dictionary/O/O10/DictO10.html (2790 words)

	ANATOMY OF COMETS (Site not responding. Last check: 2007-11-06)
		The gaseous ion tail is pushed straight away from the Sun by the solar wind, while the brighter dust tail traces the comet's curved orbit.
		By the time it crosses the Earth's orbit at 1 AU the comet is very active with a coma and a tail up to 1-2 AU long.
		As the comet again passes the orbit of Jupiter it is becoming inactive.
	www.il-st-acad-sci.org /planets/comets3.html (906 words)

	Thunder Breath : Tibetan, Taoist, Bon, Meditate, Meditation, self mastery, Ascension, evolve, Bill Joslin, Toronto, ... (Site not responding. Last check: 2007-11-06)
		When the energy is moving through the orbit the eye position should focus the level or height in the orbit.
		By continuing to cycle the orbit negative energy is converted from generative fluid into the Vitality of Life.
		At the point of self-awareness the cycle in the orbit reverses, and the positive vitality is slowly converted to negative and remains as generative fluid accumulated at the root.
	www.thunderbreath.com /ES.php (4479 words)

	6th Annual Dallas Aesthetic Surgery Symposium (Site not responding. Last check: 2007-11-06)
		This is an advanced course emphasizing rejuvenation of the orbit.
		The anatomy laboratory is designed for and limited to the plastic surgeon who would like an advanced course in facial surgical anatomy.
		Registration for the anatomy lab is limited and will be taken on a first-come, first-served basis.
	www3.utsouthwestern.edu /cme/brochures/rhin2002/aesth.htm (604 words)

	Orbit (disambiguation) - Wikipedia, the free encyclopedia
		The word orbit can mean more than one thing:
		Orbit (anatomy) - the socket in the skull which accommodates an eye
		ORBit - an object request broker (ORB) for CORBA
	en.wikipedia.org /wiki/Orbit_(mathematics) (103 words)

	Orbit and Contents
		If you have completed the dissection of the cavernous sinus correctly, you should be able to find the abducens nerve where it passes through the cavernous sinus and then follow it anteriorly.
		It is between the optic nerve and the lateral rectus muscle about 1 cm anterior to the apex of the orbit.
		near the apex of the orbit; sensory and sympathetic axons pass through the ciliary ganglion without synapse - the sensory root is carried via the nasociliary n.and the sympathetic root arrives in the orbit via the internal carotid a.
	anatomy.uams.edu /anatomyhtml/orbit.html (3039 words)

	Anatomy Tables - Eye
		forms part of the medial wall of the orbit; articulates: anteriorly with frontal process of maxilla; superiorly with frontal bone; posteriorly with ethmoid; inferiorly with orbital process of maxilla
		tear gland; located in orbit beneath orbital plate of frontal bone; innervated by postganglionic parasympathetic fibers from pterygopalatine ganglion via communicating br.
		inflammation or infection of the soft tissues of the orbit such as the periocular fat and connective tissue
	anatomy.med.umich.edu /nervous_system/eye_tables.html (1411 words)

	Orbit (anatomy) -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-11-06)
		Orbit (anatomy) -- Facts, Info, and Encyclopedia article
		In (The branch of morphology that deals with the structure of animals) anatomy the orbit is the cavity or socket of the (The bony skeleton of the head of vertebrates) skull in which the (The organ of sight) eye and its appendages are situated.
		It can also mean the skin which surrounds the eye of a bird.
	www.absoluteastronomy.com /encyclopedia/o/or/orbit_(anatomy).htm (65 words)

	Eyes
		The lacrimal glands are secretory (tubuloacinar) glands located at the superior anterolateral orbit.
		Muscles of orbit include the levator palpebrae superioris; superior, inferior, lateral, and medial rectus; and superior and inferior obliques.
		In addition to the optic nerve, the nerves of orbit include those that enter through the superior orbital fissure and supply the ocular muscles.
	www.pitt.edu /~anat/Head/Eye/Eye.htm (1850 words)

	[No title]
		CT and ultrasound in the diagnosis of cavernous hemangioma and lymphangioma of the orbit.
		Cine magnetic resonance imaging: a new method for evaluation of anatomy and flow relationships in infants and children with coarctation of the aorta.
		Davis KR, Hesselink JR, Dallow RL, Grove A: The role of CT and ultrasound in the diagnosis of cavernous hemangioma and lymphangioma of the orbit.
	spinwarp.ucsd.edu /NeuroWeb/Text/jrh-cv.html (10564 words)

	AVAR Anatomy Alternatives List (Site not responding. Last check: 2007-11-06)
		Anatomy and Dissection of the Fetal Pig, by Warren F. Walker, Jr.
		Anatomy of a Runner (Structure and Function of the Lower Limb)
		Anatomy of the Shark, by Lionel J. Rosenzweig
	www.avar.org /avar_anatomy_ix.html (2191 words)

	eMedicine - Orbit Anatomy : Article Excerpt by: Christopher M Hampson, MD (Site not responding. Last check: 2007-11-06)
		While the anatomy of the orbit has not changed over time, advances in surgical procedures have challenged surgeons to apply a detailed understanding of the anatomic relationships of the orbit.
		This article addresses orbital anatomy with emphasis on procedures and clinical applications in otolaryngology and head and neck surgery.
		Discussion of eyelid anatomy is reserved for other eMedicine articles (see Eyelid Anatomy)
	www.emedicine.com /ent/byname/orbit-anatomy.htm (116 words)

	ORBIT: Anatomy of an Investigation
		Orbit thought it to be a dynamic idea to go wide open in an investigation concerning rumors of impending Vatican pronouncements, as well as to probe into the tram accident that sadly terminated the lives of many French observatory workers.
		Below, all brave opinions are posted, a great hurrah to our readers, and proof that democratic debate, even though wild and furious, is yet ongoing and vital within our culture.
		The bad news was that when they extrapolated the periodic orbit, they found the August 13, 1999 IMPACT.
	members.aol.com /phikent/orbit/orbitback38.html (2901 words)

	7th Annual Dallas Aesthetic Surgery Symposium (Site not responding. Last check: 2007-11-06)
		The laboratory will provide the opportunity for participants to practice the latest techniques on a fresh cadaver.
		Symposium participants will explore the intricacies of facial anatomy relevant to aesthetic surgery and practice the latest techniques on fresh cadaver specimens.
		The audience will observe unedited videotaped surgeries and will have the opportunity to ask questions and receive answers from the experienced surgeons.
	www3.utsouthwestern.edu /cme/brochures/rhin2003/aesth.htm (614 words)

	ALRPub.html
		Rhoton AL Jr.: Microsurgical anatomy of acoustic neuromas, in Sekhar LN and Janecka IP (eds): Surgery of Cranial Base Tumors: A Color Atlas.
		Rhoton AL Jr.: Microsurgical anatomy of posterior fossa cranial nerves, in Barrow DL (ed): Surgery of the Cranial Nerves of the Posterior Fossa: Neurosurgical Topics.
		Rhoton AL Jr., Natori Y: The Orbit and Sellar Region: Microsurgical Anatomy and Operative Approaches.
	www.neurosurgery.ufl.edu /FacultyPage/ALRPub.html (300 words)

	Radiology Review Manual - Compare Shop Books
		Radiology residents preparing for exams have made this the bestselling review book for the radiology boards.
		Now updated in a new edition, it continues to provide all relevant findings and differential diagnoses for each organ system, along with normal anatomy and physiology.
		Anatomy of liver, bile ducts, and pancreas 672
	www.compareshopbooks.com /0781748224.htm (434 words)

	Anatomy
		Anatomy 25 - Muscles/Gross Anatomy M. Malachowski, Ph.D
		Raises the upper lip and dilates the nares
		Circles the orbit and extends within the eyelids
	fog.ccsf.cc.ca.us /~mmalacho/anatomy/Muscle25.html (942 words)

	Virtual Anaesethesia Textbook - ENT, Ophthalmic, Dental and Facial Surgery
		Varvinski and Eltringham have comprehensively described Anatomy of orbit relevant to anaesthetists.
		The technique of Peribulbar block and Retrobulbar block, there relative Advantages and disadvantages and Complications are described.
		Anatomy of ear nose and throat is explained in simple terms.
	www.virtual-anaesthesia-textbook.com /vat/ent.html (832 words)

	Medical Image Database, Radiology Teaching Files and Cases, MedPix: cat browse
		Anatomy of the Lower Extremities - CT Scans
		Anatomy of the Lower Extremities - Plain Films
		Anatomy of the Lower Extremities - Plain Tomograms
	rad.usuhs.mil /synapse/medpix.html?mode=cat_browse&expand=19 (202 words)

	OSL: Ophthalmic Plastic, Reconstructive, and Orbital Surgery
		The second section includes 4 chapters on the lacrimal drainage system: embryology, anatomy and physiology; pathology; evaluation and management; and surgery.
		The third section comprises 15 chapters regarding the eyelids and other ocular adnexa: eyelid anatomy; eyelid and canalicular trauma; management of congenital malpositions of the eyelids, eyes and orbits; blepharoptosis; congenital blepharoptosis, acquired blepharoptosis; blepharospasm; entropion; ectropion; blepharoplasty and browlift; eyelid tumors; hemangiomas; conjuctival tumors; management of periocular malignancies; and eyelid and canthal reconstruction.
		The fourth section is devoted to six chapters about orbital disease: orbit anatomy and physiology; orbital trauma; orbital tumors and inflammations; orbital fractures; and a cranial approach to orbital reconstruction.
	www.slackinc.com /eye/os/stor0699/books2.htm (727 words)

	Healthopedia.com - Site of Orbit CT - General Anatomy Pictures & Images
		You are here : Healthopedia.com > Medical Encyclopedia > Pictures and Images > S : Site of Orbit CT Pictures Category : General Anatomy
		See all General Anatomy images in thumbnail format
		Links to other sites are provided for information only -- they do not constitute endorsements of those other sites.
	www.healthopedia.com /pictures/site-of-orbit-ct.html (157 words)

	UAMS Department of Anatomy - Neuroscience
		Dissection of the Left Orbit, Orbital Fat Removed
		The Eyeball in the Orbit, Oblique Lateral View
		The Orbit from the Front and the Right
	anatomy.uams.edu /anatomyhtml/gross_atlas.html (130 words)

	Head and Neck Imaging CD-ROM and Book Package, 4th edition
		Coverage of the hottest topics in the field, including dental anatomy and pathology • trachea anatomy and pathology • genetics of tumor development and metastasis • MR spectroscopy and PET in the head and neck • pharyngeal and masticator space lesions • thyroid and parathyroid glands • and neural tumor spread.
		The latest head and neck imaging modalities and techniques, including state-of-the-art MR imaging and CT scans.
		Embryology and Anatomy of the Jaw and Dentition 15.
	www.harcourt-international.com /catalogue/title.cfm?ISBN=0323009417 (472 words)

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