Anatomy of orbit ppt. Published Online: August 10th, 2020 .

Anatomy of orbit ppt. PowerPoint Basic Science. The orbital septum is a continuation of the periorbita and anatomically divides the orbit into preseptal and postseptal compartments, providing a strong Apr 8, 2013 В· The document summarizes the anatomy of the orbit. It discusses the bony framework of the orbit including the 7 bones that make up the structure. The document outlines the anatomy, dimensions, walls, openings and relations of the orbital cavity. Dense, elastic and vascular connective tissue that surrounds the globe (except over the cornea) Begins anteriorly at the perilimbal sclera, extends around the globe to the optic nerve, and fuses with the dural sheath and the sclera Separated from the sclera by periscleral lymph space, in continuation with subdural and Oct 27, 2020 В· 4. Anatomy of the orbit 5. 3. It describes the major anatomic components of the orbit including the globe, optic nerve, extraconal and intraconal areas. Dr M Eladl Fracture of the Orbit •Indirect traumatic injury that displaces the orbital walls is called a “blowout” fracture. bone. Intraorbital portion of the O. (18mm. Define each component. Make a list of structures making the orbit starting from orbital margin. Retinal Pigment Epithelium: Sheet of melanin-containing epithelial cells lying between the choroid and the neural portion Which form a single layer extending from the periphery of the optic disc to the Ora Serrata epithelial cells that assist in the turnover of rods and cones and prevent the scattering of light within the eyeball due to the presence of melanin also works as a barrier Oct 30, 2023 В· Optic nerve. 1 of 92. 1 The anatomy of the orbit 1- The Roof: 2- The Lateral Download ppt "The anatomy of the orbit" Similar presentations . Oct 4, 2014 В· Anatomy of the orbit and lacrimal system By :Dr. Applied anatomy Tolosa Hunt syndrome: Inflammation of the cavernous sinus, superior orbital fissure and/or orbital apex. •Fractures of the medial wall may involve the ethmoidal and sphenoidal sinuses, whereas fractures of the inferior wall (orbital floor) may involve the maxillary sinus. Aug 13, 2017 В· The document summarizes the anatomy of the orbit, including its bones, dimensions, walls, relations, clinical applications, surgical spaces, and contents. It develops from the frontal process, maxillary process, and lateral nasal process in embryology. Lacrimal fossa, a deep concavity in the inferolateral orbit 16. Mar 31, 2018 В· Inferior orbital fissure • lies between the lateral wall and floor of the orbit as they converge on the apex of orbit. Jan 10, 2021 В· 54. Apr 26, 2020 В· The document summarizes the anatomy of the orbit including its walls, contents, fasciae, nerves, vessels, and related structures. Bony orbit is a pyramidal cavity with anBony orbit is a pyramidal cavity with an elliptical base presenting anteriorly and theelliptical base presenting anteriorly and the apex posteriorly at 22 degrees lateral May 5, 2014 В· It also discusses the base of the orbit, orbital apex, periorbita, orbital fascia, and common congenital anomalies seen in the orbit. Specifically, it notes that the orbit is formed by 7 bones and has a quadrangular pyramid shape. 1. It describes the orbit as the cavity that protects the eyeball and facilitates its movement. Sep 27, 2024 В· Anatomy of the right lacrimal drainage system, including average adult length measurements for each section (Modified from Servat JJ, Nesi-Eloff F, Baylin E. Lacrimal 5. Nov 3, 2023 В· There are six: superior, inferior, medial, and lateral rectus muscles and the superior and inferior oblique muscles. . Zygomatic 3. This article will discuss the structures contained within the orbit from a surgical perspective Jul 18, 2020 В· The document describes the anatomy of the eye and orbit. It also discusses variations with age and surface anatomy landmarks. Sphenoid 7. SIZE, SHAPE AND RELATIONS OF BONY ORBIT The two bony orbits are quadrangular truncated pyramids These are situated between the anterior cranial fossa above and the maxillary sinuses below. Presentation : ipsilateral periorbital or hemicranial pain,diplopia,pupillary and eyelid involvement, Proptosis,Sensory loss along the distribution of the first and second divisions of the trigeminal nerve. Palatine Orbits are like a Quadrangular Truncated Pyramids . Feb 5, 2022 В· 31. The rest of the soft tissue content that fills the orbit are the neurovascular structures that communicate with the contents of the orbit through foramina and are listed above. Even minor injury or imbalance of any one of these structures in either orbit can lead to signif- icant and debilitating visual dysfunction. Lutfi ballqadi Assisstan. Aug 13, 2017 В· The document summarizes the anatomy of the orbit. Periorbital and Orbital Cellulitis. Aug 21, 2015 В· In adults, the orbit is quadrangular in shape and bounded superiorly, medially, inferiorly and laterally by bones. Key points include: 1. It is formed by 7 bones and has a quadrangular pyramid shape. Jul 7, 2014 В· This document provides an overview of orbital anatomy and diseases. It describes the skull and bone formation processes related to the orbit. It discusses the contents of the orbit, including the eyeball, extraocular muscles, nerves, vessels, orbital fat, and lacrimal gland. Key points include that the orbit is formed by 7 bones and contains the eyeball, extraocular muscles, nerves, vessels, lacrimal gland, and orbital fat. The orbital contents include the eyeball, extraocular muscles, nerves, vessels, fat, and most of the lacrimal apparatus. Aug 10, 2020 В· Clinical anatomy of the orbit. It can be summarized as follows: The orbit is a pyramid-shaped space bounded by seven bones and containing the eye. It then discusses the layers of the eyeball, muscles of the eyelid and extraocular muscles. It is also important to consider the anatomical relations of the orbital cavity – this is clinically relevant in the spread of infection, and in cases of trauma. Mar 27, 2020 В· Walls of the orbit The orbit is essentially a socket for the eyeball and is bounded by four walls The Roof The Medial wall The Lateral wall The Floor 7 different bones form the orbit which are: • The Maxillary • The Palatine • The Frontal • The Sphenoid • The Zygomatic • The Ethmoid • The Lacrimal -The atlas of Anatomy, Annie M Gilroy Aug 30, 2014 В· Key structures discussed include the openings like the superior and inferior orbital fissures which connect the orbit to the brain. - Through them blood & pus passes out of orbit . The orbit is a complex structure with multiple contributing bones, important foramina, complex neurovascular and muscular anatomy, and a lacrimal apparatus, which all support the visual sense. Aug 21, 2015 В· 12. Oct 21, 2017 В· 42. Published Online: August 10th, 2020 Powerpoint. Fascial disposition of Orbit Periorbita ( Orbital Fascia/Orbital Periosteum)-•Loosely attached to the bones that form boundaries of the orbit. The orbital boundaries The roof: 2 bones. Read more. surrounds and protects the eye. Frontal Nerve • The frontal nerve arises from the ophthalmic division of the trigeminal nerve. Anatomy of the orbit The orbit is a pear shaped cavity,the stalk of which is the optic canal. LATERAL WALL MEDIAL WALL lt is oblique outside and in front This wall is very thick, especially at the front (the lateral pillar), and it separates the orbit from the cerebral temporal fossa behind and from the temporal fossa (which houses the temporal muscle) in front It is the thinnest of the walls of the orbit It has in its forward portion, the lacrimal groove that subsequently turns Jun 1, 2018 В· Bony orbits are Quadrangular truncated pyramids with Anterior cranial fossa above and the maxillary sinuses below. The bones that make up the orbit include the frontal, ethmoid, sphenoid, lacrimal, palatine, maxillary, and zygomatic bones. Nov 7, 2014 В· 3. 2. -These are the communications between orbital cavity & deep portion of eyelid. Read less Jan 3, 2024 В· Ophthalmology orbital anatomy ppt. Some key points: - The orbit is pyramid shaped with walls formed by 7 bones and contains the eye, extraocular muscles, nerves, fat, and blood vessels. It pass through the optiv canal and it the nerve of vision . • Frequently eroded by chronic inflammatory lesions, neoplasms, cysts. It describes the bones that form the orbital walls, such as the frontal bone, maxilla, palatine bone, zygomatic bone, ethmoid bone, and sphenoid bone. Diagnostic imaging head and neck 8. Jan 12, 2017 В· 16. org 11. Dr. in this presentation we study the detailed anatomy of the arbit, the bones, relations of each wall, the contents, the apertures, orbital fissures and structures passing, fascia, septa and the surgical spaces of the orbit Read less Jun 11, 2020 В· The document provides an overview of the anatomy of the orbit, including its walls, contents, surgical spaces, vascular and nervous supply. - It has 4 walls - medial, lateral, roof, and floor. The medial orbital wall is the thinnest and contains the frontal process of maxilla, lacrimal bone, orbital plate of ethmoid, and body of sphenoid. Some key points include: - The orbit is a pyramid-shaped cavity formed by 7 bones and divided into 4 walls - medial, lateral, roof and floor. Mar 18, 2018 В· 6. The walls are thin and prone to fractures or invasion by adjacent structures like sinuses. 87k views • 99 slides Dec 14, 2016 В· This document provides an overview of orbit anatomy including: - The 7 bones that make up the orbit and its embryological development - Common congenital anomalies such as craniosynostosis syndromes - The dimensions, contents and walls of the orbit including the medial, inferior, lateral and superior walls - Apertures at the base of the orbit and the structures passing through the apex Jul 14, 2014 В· 2. Artificial Tear Substitues; 38 Summary Orbit is the protective casing for the delicate visual apparatus - the eyeball It is made up of 7 bones, has 4 margins, 4 walls/ boundaries, 4 important openings , 5 important relations & 6 contents Infection can spread to the brain from the orbit directly or through the haematogenous spread- Orbital septum is a barrier to infection May 4, 2020 В· The document describes the anatomy of the orbit, including its size, shape, walls, and relations to surrounding structures. •Easily stripped off from the bone. Surgical manip- ulation of 1 component in the orbit can, and often does, Mar 9, 2019 В· The document discusses the anatomy of the human orbit, including its development, measurements, walls, fissures, and contents. Internet source 12. " Objectives Describe the location of the orbit. Gunjan Pokhrel. It discusses: - The development of the eye from the optic vesicle, lens placode, and other tissues. Jan 6, 2018 В· 3. Each orbit is formed by seven bones- frontal, ethmoid, lacrimal, palatine, maxilla, zygomatic and sphenoid. • 4) EYELID MARGINS – 2mm in width • Each lid margin divided into 2 parts by lacrimal papilla – Lacrimal portion medially – devoid of lashes/glands and Ciliary portion laterally • Approximately 100 to 150 cilia -upper eyelid, and 50 to 75 cilia -lower eyelid. Common pathologies are discussed for each anatomic structure, such as retinoblastoma affecting the globe and optic neuritis involving the optic nerve. It discusses different types of proptosis including the causes, signs, and treatments. Practical radiological anatomy 7. Aug 23, 2013 В· The document provides information about the anatomy and development of the orbit and eye. It describes the foramina and fissures located within the orbit including the optic canal, superior orbital fissure, inferior orbital fissure, and Jun 25, 2024 В· The orbit can be thought of as a pyramidal structure, with the apex pointing posteriorly and the base situated anteriorly. Orbital fissures and formamiina ORBITAL FISSURES AND FORAMINA BOUNDARIES CONTENTS CONNECTS Optic canal Between the thin, flat anterior root and a thick, triangular posterior root of lesser wing of sphenoid Transmits; • Optic nerve •Its meningeal sheaths • The ophthalmic artery •Orbit to the middle cranial fossa Superior orbital fissure •Gap between the greater and lesser wings of . Mar 2, 2016 В· 3. , arranged in two to three rows Glands of Zeis and Moll open into each hair follicle Dense plexus of nerves and vesssels Dec 11, 2012 В· The document discusses diseases of the orbit, including: 1. TENON’S CAPSULE Also known as Fascia bulbi or bulbar sheath. (2) Oculomotor nerve : § Comes out of the midbrain . Dec 19, 2018 В· Base of orbit is closed partly by globe , extraocular muscles & their fascial expansions. The orbit contains 4 walls - medial, inferior, lateral, and roof. Grant’s atlas of anatomy 9. It describes the anatomy of the orbital cavity including its dimensions, walls, openings, spaces, and relations to other structures. A thorough knowledge of these structures and their inter-relationships is imperative for the head and neck surgeon. Oct 13, 2015 В· The document summarizes the anatomy of the orbit, including its development, bones, walls, margins, contents, and age-related changes. Introduction to Orbit, its anatomy, muscles, Blood supply, its nerve supply and clinical co-relations. • It enters the orbit through the upper part of the superior orbital fissure and passes forward on the upper surface of the levator palpebrae superioris • It is the highest structure in the orbit passes forward beneath the roof of the orbit below the orbital periosteum. DI Anatomy Brain-Head-Neck-Spine 5. Radiopaedia. It describes the seven bones that make up the bony orbit, including the frontal, zygomatic, maxillary, ethmoidal, sphenoid, lacrimal and palatine bones. The lacrimal apparatus is also found within the orbit. Read less The orbit contains and protects the delicate structures that comprise the visual sensory components of our cen- tral nervous system. Ethmoid 6. Mar 10, 2014 В· 2. Multiple cranial nerves control the muscles of the orbit, and nerves of the oculus and extraocular region. May 19, 2012 В· Anatomy of the orbit . Oct 31, 2016 В· The document discusses the anatomy of the orbit, including its embryology, dimensions, boundaries, and clinical significance. The document also covers the embryology of the orbit, orbital axis, visual axis, and fascial structures such as the periorbita, bulbar fascia, and Nov 25, 2020 В· The document discusses the anatomy of the orbit through multiple sections. It details the bones that make up the orbit, including the frontal, sphenoid, maxilla, palatine and zygomatic bones. Anatomy for diagnostic imagining 3rd edition 6. Aug 9, 2018 В· Medial Orbital Wall Clinical applications: • It is the thinnest wall of the orbit, so it is frequently fragmented as a result of indirect blow out fractures and during orbitotomy operations. Aug 28, 2021 В· 4. It describes the bones that form the orbit, including the frontal, zygomatic, maxillary, sphenoid, ethmoid, lacrimal and palatine bones. (18mm). Key points include: - The orbit is a quadrangular pyramid situated between the anterior cranial fossa and maxillary sinus. Key points: - The orbit is a quadrangular pyramid shaped cavity formed by 7 bones and measures approximately 50mm deep along the lateral wall. It begins with an introduction defining the orbit and its bones, which include the maxilla, frontal, zygomatic, ethmoid, lacrimal, sphenoid and palatine bones. § Enters the cavernous sinus § Divides in the anterior part of the sinus into superior and inferior divisions, Distribution : (1) The superior division: supplies 2 muscles: (a) Superior rectus. Orbital AnatomyOrbital Anatomy Bony orbit refers to the shell of bone whichBony orbit refers to the shell of bone which surrounds and protects the eye. Dec 31, 2023 В· This document provides an overview of the anatomy of the orbit. Dr Rania Gabr. Bony margins: The orbit's bony margins are made up of seven bones: pars orbitalis of the frontal bone lacrimal bone lamina papyracea of the ethmoid bone orbital process of the zygomatic bone orbital surface of the maxillary bone orbital process of the palatine bone greater and lesser wings of the sphenoid bone Communications: The orbit communicates posteriorly with the intracranial cavity Jul 17, 2023 В· 17. • Runs downwards and laterally . CONTENTS OF ORBIT • Fascia (orbital and Bulbar) • ocular muscles • Eyelids • Lacrimal glands • Eyeballs • Nerves (optic, oculomotor, trochlear, abducent, branches of ophthalmic and maxillary nerves and sympathetic nerves ) • Blood vessels (ophthalmic artery, superior and inferior ophthalmic veins and lymphatics) Visual Axis and Orbital axis Visual Axis- Axis passing through Mar 7, 2018 В· 10. Describe muscles of the orbit, their cone arrangement, origin, insertion, nerve supply and their function. 2 Objectives Describe the location of the orbit. It describes the orbit as a pyramidal cavity formed by seven bones, including the frontal, zygomatic, maxillary, palatine, lacrimal, ethmoid, and sphenoid bones. Nerves of the orbit (1) Optic nerve: it is the 1st cranial nerve . Describe openings into orbital cavity. The document discusses the anatomy of the orbit. 1 Anatomy of the Orbit and Visual Pathway. It details the walls, fissures, contents including extraocular muscles, arteries, veins and nerves. May 22, 2009 В· This document provides an overview of orbit anatomy including: - The 7 bones that make up the orbit and its embryological development - Common congenital anomalies such as craniosynostosis syndromes - The dimensions, contents and walls of the orbit including the medial, inferior, lateral and superior walls - Apertures at the base of the orbit and the structures passing through the apex Jul 17, 2020 В· The document provides information on the surgical anatomy of the orbit and its clinical importance. In summary, it provides a detailed anatomical description of the bony orbit and its contents to understand its structure and clinical applications. Gray ‘s surface ultrasound anatomy 13. Sep 24, 2019 В· The document provides detailed anatomical information about the orbit, including its boundaries, contents, measurements, and relationships. Thieme atlas of anatomy 10. The document provides an anatomy overview of the eye and orbit. - The anatomy of the orbit, including the bones that form it and openings like the optic canal. It describes the bones that form the orbit, including the roof, lateral wall, floor, and medial wall. The orbit is a pear shaped cavity,the stalk of which is the optic canal. Read less. It contains the eyeball and extraocular muscles, nerves, vessels and fat. The orbit develops from mesenchyme between the 6th and 7th week, with bones forming around the optic vesicle. •At the optic canal and superior orbital fissure, it is continuous with the endocranium (periosteum lining the interior of the skull. Maxilla 4. Intraorbital portion of the O. Jul 11, 2015 В· The document provides an overview of the anatomy of the eye and orbit. Mar 11, 2017 В· Subperiosteal dissection of orbit and orbital rim is performed. The boundaries of the orbit are formed by seven bones. Oct 2, 2024 В· "Software" or “Solution” means original Software (including but not limited to, e-Anatomy, vet-Anatomy, QEVLAR Radiology, QEVLAR Quiz, IDV Dicom Viewer, Anatomy Ninja Lower Limb and Anatomy Ninja Upper Limb) pursuant to Article L112-2 13° of the Intellectual Property Code published and distributed by IMAIOS and for which the Licensee Jul 30, 2014 В· 37. 1cm area of hairline at incision is shaved Incision is carried out through skin, subcutaneous tissue and aponeurosis. Jun 9, 2021 В· Applied anatomy: • The lamina papyracea fractures readily follow blunt orbital trauma • Paper thin lamina papyravea overlying the ethmoid sinus facilitates the spread of infection, in cases of ethmoid sinusitis, into the orbit with subperiosteal abscess formation and/or orbital cellulitis • Hemorrhage may occur due to damage to ethmoidal Jan 31, 2012 В· The document discusses the anatomy of the orbit, including: 1. It details the walls of the orbit - medial, inferior, lateral and roof. The optic nerve (CN II) is a paired nerve that transmits visual information from the retina to the brain, and is considered to be part of the central nervous system. Anatomy of the ocular adnexa, orbit, and related facial structures. Mar 2, 2019 В· 18. b/n the back of the globe and the optic canal. lesser wing of the sph. - These fascial expansions & sup and inferior oblique muscles bound 5 orifices between them & orbital margins . Anatomy of the orbit. 4. RETINA • Retina is the inner most layer of the eyeball • It is a thin delicate layer continuous posteriorly with optic nerve • The outer surface of the retina, formed by pigment cells, is attached to choroid • Its inner surface is in contact with the hyaloid membrane of the vitreous • The small area of retina where the optic nerve leaves the eye is the optic disc or the blind spot. Frontal 2. Each wall has specific bone formations and relationships to structures like muscles and nerves. The orbitThe orbit is a pyramidal, bony cavity in the facial skeleton with its base anterior and its apex posterior • The orbits contain and protect the eyeballs and their muscles, nerves, and vessels, together with most of the lacrimal apparatus. • Medial wall provide alternate access route to the orbit through sinus. N is longer (25mm)than the the dist. Above - Anterior cranial fossa Below - Maxillary sinus Between them - Nasal cavity and Ethmoidal air sinuses Laterally (from behind forwards) – Middle cranial fossa and muscular Temporal fossa Base - Orbital Jul 19, 2020 В· Applied radiologic anatomy, 2nd edition 4. Download ppt "Anatomy of the Orbit. • Transmits the maxillary nerve (V2) and its zygomatic branch, the infra- orbital vessels. Sep 18, 2020 В· This document discusses the anatomy of the orbit, including its bones, walls, dimensions, contents, and surgical spaces. Apr 19, 2017 В· The document summarizes key anatomical structures of the orbit, including its roof, floor, medial wall, lateral wall, and fissures. A curvilinear incision given 2 cm behind incision line extending lateraly parallel to hairline and Oct 12, 2018 В· The contents of the human orbit develop from all embryonic germinal layers to form diverse and specialized interconnected structures, whose unified function is that of providing sight. Gross Anatomy – Shape 7 bones forming Orbit - 1. GO BACK. kogvh kyafv zjlm zuj jtvdmqv fqekqu ndshh gzqsnf mafjem ebjyn