Al Balqa Applied University. Collage of Medicine. Anatomy Lab Check List
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1 Al Balqa Applied University Cllage f Medicine Anatmy Lab Check List Blck: Nervus System and Special Senses ( ) Lab Title: Orbit, Eye and Ear Lab Objectives: Recgnize individual structures related t rbit, eye & ear. Observe the rganizatin and relatins f these structures. Cmpare between yur understanding, yur atlas and the specimens yu see in the lab. Eye Eyelids Upper & lwer eyelids Medial & lateral angles (canthi) Palpebral fissure Eyelashes Glands Glands f Zeis (il) hair fllicles Ciliary glands/ glands f Mll (mdified sweat) between eyelashes Tarsal (Meibmian) glands (mdified il) behind eyelashes Framewrk Orbital septum Tarsal plates Palpebral ligaments Muscles Orbicularis culi Levatr palpebrae superiris Cnjunctiva Palpebral cnjunctiva Bulbar cnjunctiva Cnjunctival bld vessels Cnjunctival frnices Cnjunctival sac receive ducts f lacrimal gland Medial angle (beginning f the lacrimal apparatus)
2 Lacus lacrimalis (lacrimal lake) Caruncula lacrimalis Papilla lacrimalis Punctum lacrimalis Canaliculus lacrimalis Lacrimal Apparatus Punctum lacrimalis Canaliculus lacrimalis Lacrimal sac Naslacrimal duct Lacrimal gland Parts Orbital part Palpebral part The Orbit Bnes f rbital margin.. Bnes f rbital cavity walls.. Openings int rbital cavity Optic canal Suprarbital ntch/framen Naslacrimal canal Anterir & psterir ethmidal framina Inferir & superir rbital fissures Infrarbital grve, canal, & framen Nerves f the Orbit Optic nerve Trchlear nerve Abducent nerve Oculmtr nerve Superir ramus Inferir ramus Branch t ciliary ganglin Ciliary ganglin Shrt ciliary nerves Ophthalmic nerve Frntal nerve Suprarbital & Supratchlear nerves Lacrimal nerve Carry parasympathetic fibers t lacrimal gland via zygmatictempral nerve
3 Nasciliary nerve: Branches: Cmunicating branch t ciliary ganglin Lng ciliary Psterir ethmidal Anterir ethmidal External nasal Infratrchlear Ophthalmic Artery: Branches: Suprarbital Supratrchlear Central retinal Ciliary aa. (shrt & lng) Ethmidal aa. (anterir & psterir) Lacrimal Drsal nasal Ophthalmic Veins Superir & inferir phthalmic veins Eye: Muscles Extrinsic muscles Superir rectus Inferir rectus Medial rectus Lateral rectus Superir blique Trchlea Inferir blique Intrinsic muscles Ciliary parasympathetic Cnstrictr pupillae f the iris parasympathetic Dilatr pupillae f the iris sympathetic Eye: Fascia Medial & lateral check ligaments Suspensry ligament f the eye Tunics (Layers, Cats) f Eyeball Fibrus Tunic Crnea anterir Sclera psterir Lamina cribrsa Limbus Scleral venus sinus Canal f Schlemm
4 Lens Vascular Pigmented Tunic Chrid Ciliary bdy Ciliary ring (psterir) Ciliary prcesses Flds n ciliary bdy Suspensry ligaments Ciliary muscle Iris Cnstrictr pupillae (circular) Dilatr pupillae (radial) Pupil Nervus Tunic (Retina) Layers Outer pigmented layer Inner nervus layer Parts Psterir ¾ is receptr rgan Ora serrata Anterir part (nnreceptive) Cvers ciliary prcesses & back f iris Macula lutea Fvea centralis Optic disc (Blind spt) Optic nerve Central artery f the retina Cavities f the Interir f Eyeball Anterir cavity Anterir chamber Psterir chamber Psterir cavity Vitreus bdy Ear External Ear Auricle r pinna Helix & antihelix Tragus & antitragus Lbule
5 Sacphid fssa Triangular fssa Cncha External auditry canal Tympanic membrane r eardrum Flaccid part (superirly) Tense part Middle Ear Cavity Parts Epitympanic recess (superirly) Tympanic cavity prper Cntents Auditry ssicles Malleus Head (fr incus) Neck Handle (fr eardrum & tensr tympani m.) Anterir (fr ligament) & lateral (fr mallelar flds) prcesses Incus Bdy (fr malleus) Lng prcess (fr stabs) Shrt prcess (fr ligament) Stapes Head (fr incus) Neck (stapedius m.) Limbs Base (fr val windw) Stapedius & tensr tympani mm. Chrda tympani n. Tympanic plexus f nerves Walls Rf (tegmen tympani f petrus prtin) Flr Anterir wall. Opening t auditry tube Opening f a canal fr tensr tympani m. Psterir wall Opening t mastid antrum Pyramid Lateral wall (eardrum) Medial wall
6 Prmntry Oval windw (fenestra vestibuli) Rund windw (fenestra cchleae) Secndary tympanic membrane Inner Ear Bny labyrinth Semicircular canals (superir (anterir), lateral & psterir) Vestibule Oval & rund windws Cchlea Mdilus Cchlear canal Spiral lamina Basilar membrane Vestibular membrane Parts Scala vestibuli (begins at val windw) Scala tympani (ends at rund windw) Helictrema Membranus Labyrinth Utricle & Saccule Endlymphatic sac Utriculsaccular duct Otlithic rgans Semicircular ducts Ampulla f Semicircular Ducts Crista Cchlear duct Ductus reuniens Organ f Crti Cranial nerves f the Ear Regin Vestibulcchlear nerve Vestibular branch Ampullary, utricular & saccular branches Vestibular ganglin cchlear branch spiral ganglin
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