Term
| what does the orbit contain |
|
Definition
| eyeball, extraocular muscles, nerves, blood vessels, fat, lacrimal gland |
|
|
Term
|
Definition
|
|
Term
| what direction is the base and apex of the orbit located |
|
Definition
| base is in front apex is in back |
|
|
Term
| what is the roof of the orbit |
|
Definition
| orbital plate of the frontal bone |
|
|
Term
| what is the lateral wall of the orbit |
|
Definition
| zygomatic bone and greater wing of sphenoid |
|
|
Term
| what is the floor of the orbit |
|
Definition
|
|
Term
| what does the floor of the orbit seperate |
|
Definition
| orbital cavity from maxillary sinus |
|
|
Term
| what is the medial wall of the orbit |
|
Definition
| frontal process of maxilla, larcimal bone, orbital plate of the ethmoid, body of sphenoid |
|
|
Term
| what is another name for the oribtal plate of the ethmoid |
|
Definition
|
|
Term
| what is the larcimal bone |
|
Definition
| small bone at the corner of the eye |
|
|
Term
| what is the function of the eye lid |
|
Definition
| protect from injury and excessive light |
|
|
Term
| which eye lid is larger, what is its other feature |
|
Definition
|
|
Term
| what are the corners of the eye called |
|
Definition
|
|
Term
| what is the opening between the eyelids called |
|
Definition
|
|
Term
| where is the opening to the conjunctival sac located |
|
Definition
|
|
Term
| what is the deep surface of the eyelid covered by |
|
Definition
| mucous membrane called conjunctiva |
|
|
Term
| how are eyelashes arranged |
|
Definition
|
|
Term
| where are eyelashes located |
|
Definition
|
|
Term
| where are the sebacous glands of the eyelid located, what is their function |
|
Definition
| open into eyelash follicles to lubricate them |
|
|
Term
|
Definition
|
|
Term
| where do tarsal glands open into |
|
Definition
| margin of eyelid behind the eyelashes |
|
|
Term
| what do tarsal glands secrete, what is the function |
|
Definition
| oily substance that prevents overflow of tears (during normal situations) |
|
|
Term
| what does the tendon of the levator palpebrae superioris muscle connect |
|
Definition
| levator palpebrae superiorus to obcularis oculi muscle |
|
|
Term
| where does the conjunctiva reflect, onto what |
|
Definition
| superior and inferior fornices onto the eyeball |
|
|
Term
| what is the epithelium of the conjunctiva continous with |
|
Definition
|
|
Term
| what is the cornea located over |
|
Definition
|
|
Term
| what does the conjunctiva form, where does it open |
|
Definition
| potential space that opens into the palpebral fissure |
|
|
Term
| what occurs at the bulbular conjunctiva covering the sclera |
|
Definition
| where the conjunctiva converge with eye |
|
|
Term
| what are the eyelids supported by |
|
Definition
|
|
Term
| what gives the eyelid its structure |
|
Definition
|
|
Term
| what does the orbital septum attach to |
|
Definition
| periosteum at the orbital margins |
|
|
Term
| what are the tarsal glands embedded in |
|
Definition
|
|
Term
| what does the larcimal gland consist of |
|
Definition
| large orbital part and small palpebral part that are continous |
|
|
Term
| where is the larcimal gland located |
|
Definition
| above eyeball in the upper lateral and anterior aspect of the orbit |
|
|
Term
| what does the larcimal gland open into |
|
Definition
| lateral part of the superior fornix of the conjunctiva |
|
|
Term
| where do parasympathetic fibers come from that are going to the larcimal gland |
|
Definition
| larcimal nucleus of the facial nerve to the petrygopalatine ganglion via the greater petrosal nerve and nerve of the pterygoig canal, they leave the canal and join branches of V3, postganglionic fibers reach the gland via the larcimal nerve |
|
|
Term
| where do sympathetic fibers that innervate the larcimal gland come from |
|
Definition
| internal carotid plexus, join deep petrosal nerve, nerve of the pterygoing canal, zygomatic nerve, and larcimal nerve |
|
|
Term
| what are the branches of V3 |
|
Definition
| zygomatic nerve and zygomaticotemporal nerve |
|
|
Term
| what does parasympathetic innervation do to the larcimal gland |
|
Definition
|
|
Term
| what does sympathetic stimulation do to the larcimal gland |
|
Definition
|
|
Term
| where do tears cross then accumulate |
|
Definition
| cross cornea and accumulate in lacus lacrimalis |
|
|
Term
| after tears enter the larcimal lacrimalis where do they go |
|
Definition
|
|
Term
| after tears enter the larcimal canliculi where do they go |
|
Definition
| pass medially and open into larcimal sac |
|
|
Term
| where is the larcimal sac located |
|
Definition
| in larcimal groove behind medial palpebral ligament |
|
|
Term
| what is the larcimal sac part of |
|
Definition
| upper blind end of the nasolarcimal duct |
|
|
Term
| where does the nasolarcimal duct begin |
|
Definition
| lower end of the larcimal sac |
|
|
Term
| where does the nasolarcimal duct decend to |
|
Definition
| downward in a bondy canal and opens in the inferior meatus of the nose |
|
|
Term
| where does the optic nerve enter the orbit |
|
Definition
|
|
Term
| what accompanies the opric nerve in the orbit |
|
Definition
|
|
Term
| what is the optic nerve surrounded by |
|
Definition
| meningeal sheaths of pia mater, arachnoid, and dura mater |
|
|
Term
| what does the optic nerve pierce, where |
|
Definition
| sclera and point medial to posterior pole of eyeball |
|
|
Term
| what occurs at the point where the optic nerve fuses with the sclera |
|
Definition
|
|
Term
| what happens when there is a rise in pressure in the eyeball |
|
Definition
| CSF is contained in the subsrachnoid space around the optic nerve so pressure in the cranial cavity is transmitted to the back of the eye ball |
|
|
Term
| what passes through the superior orbital fissure, what does it supply |
|
Definition
| opthalmic division of the trigeminal nerve, supplies orbit |
|
|
Term
| what does the opthalmic division of the trigeminal divide into |
|
Definition
| frontal, larcimal, and nasociliary |
|
|
Term
| what does the frontal nerve divide into |
|
Definition
| supratrochlear and supraorbital |
|
|
Term
| what does the frontal nerve supply |
|
Definition
| skin of forehead and mucous membrane of frontal sinus |
|
|
Term
| where does the larcimal nerve pass |
|
Definition
| forward along upper border of lateral rectus muscle |
|
|
Term
| what is the larcimal nerve joined by |
|
Definition
| branch of the zygomaticotemporal nerve |
|
|
Term
| what does the zygomaticotemporal nerve do after joining the larcimal nerve |
|
Definition
| leaves to enter the larcimal gland |
|
|
Term
| what fibers does the zygomaticotemporal bring to the larcimal gland |
|
Definition
|
|
Term
| what does the larcimal nerve supply |
|
Definition
| skin of lateral part of upper eye lid |
|
|
Term
| where does the oculomotor nerve enter the orbit |
|
Definition
| through lower part of the superior orbital fissure |
|
|
Term
| what are the divisions of the oculomotor nerve |
|
Definition
|
|
Term
| what does the superior branch of the oculomotor nerve supply |
|
Definition
| superior rectus and levator palpebrae superioris muscles |
|
|
Term
| what does the inferior branch of the oculomotor nerve supply |
|
Definition
| inferior rectus, medial rectus, and inferior oblique muscles |
|
|
Term
| where does the nerve to the inferior oblique come from |
|
Definition
|
|
Term
| what does the branch of the nerve to the inferior oblique supply, how does it get there, what type of fibers |
|
Definition
| ciliary ganglion which carries parasympathetic fibers to the sphincter pupillae and ciliary muscle |
|
|
Term
| where does the trochlear nerve enter the orbit |
|
Definition
| upper part of the superior orbital fissure |
|
|
Term
| where does the abducens nerve enter the orbit |
|
Definition
| lower part of the superior orbital fissure |
|
|
Term
| describe the path of the nasociliary nerve to the orbit |
|
Definition
| crosses above optic nerve, runs forward along upper margin of medial rectus muscle, divides into anterior ethmoid and infratrochlear nerves |
|
|
Term
| what are the branches of the nasociliary nerve |
|
Definition
| communicating branch of ciliary ganglion, long ciliary nerves, anterior ethmoidal, infratrochlear |
|
|
Term
| what fibers does the communicating branch of the ciliary ganglion contain |
|
Definition
|
|
Term
| what fibers do the long ciliary nerves contain |
|
Definition
|
|
Term
| what do the long ciliary muscles innervate |
|
Definition
|
|
Term
| what do the long ciliary muscles pierce |
|
Definition
|
|
Term
| what does the posterior ethmoidal nerve supply |
|
Definition
| ethmoidal and sphenoidal air sinuses |
|
|
Term
| what does the infratrochlear nerve pass |
|
Definition
| forward below the pulley of the superior oblique muscle |
|
|
Term
| what does the infratrochlear nerve supply |
|
Definition
| medial part of upper eye lid and adjacent part of nose |
|
|
Term
| describe the path of the anterior ethmoidal nerve |
|
Definition
| passes through the anterior ethmoidal foramen and enters the anterior cranial fossa, enters the nasal cavity |
|
|
Term
| what does the anterior ethmoidal nerve supply |
|
Definition
| mucosa of nasal cavity, nose down to tip |
|
|
Term
| what is a branch of the anterior anterior ethmoidal nerve |
|
Definition
|
|
Term
| what does the external nasal branch of the anterior ethmoidal nerve supply |
|
Definition
|
|
Term
| what is the opthalmic artery a branch of |
|
Definition
|
|
Term
| where does the opthalmic artery enter the orbit |
|
Definition
|
|
Term
| where does the opthalmic artery enter the eye |
|
Definition
| at the center of the optic disc |
|
|
Term
| what do the muscular branches of the opthalmic artery supply |
|
Definition
|
|
Term
| what do the cilliary arteries divide into |
|
Definition
| anterior and posterior groups |
|
|
Term
| where do the cilliary arteries anterior enter the eyeball |
|
Definition
| near the corneoscleral junction |
|
|
Term
| what do the posterior cilliary arteries anter the eyeball |
|
Definition
|
|
Term
| whaat does the larcimal artery supply |
|
Definition
|
|
Term
| what does the superior opthalmic vein communicate with |
|
Definition
|
|
Term
| what does the inferior opthalmic vein communicate with |
|
Definition
| inferior orbital fissure with the petrygoing venous plexus |
|
|
Term
| what do the opthalmic veins drain into |
|
Definition
|
|
Term
| what fibers does the ciliary ganglion have |
|
Definition
|
|
Term
| how big is the ciliary ganglion |
|
Definition
|
|
Term
| where is the ciliary ganglion located |
|
Definition
|
|
Term
| what does the ciliary ganglion recieve |
|
Definition
| parasympathetic fibers from the oculomotor nerve via the nerve to the inferior oblique |
|
|
Term
| where do postganglionic fibers from the ciliary ganglion go |
|
Definition
| short ciliary nerves which enter back of eyeball |
|
|
Term
| what do the short ciliary nerves innervate |
|
Definition
| sphinctor pupillae and ciliary muscle |
|
|
Term
| what is the best place for vision in the eye |
|
Definition
|
|
Term
| what does contraction do to the pupil |
|
Definition
|
|
Term
| what is the ciliary muscle stimulated by, what does it cause it to do |
|
Definition
| parasympathetic, contract, see up close |
|
|
Term
| what does elevate mean in reference to the eye |
|
Definition
|
|
Term
| what does depress mean in reference to the eye |
|
Definition
|
|
Term
| what are the extraocular muscles |
|
Definition
| superior oblique, medial rectus, inferior rectus, levator palpebrae superioris, superior rectus, lateral rectus, superior tarsus, inferior oblique |
|
|
Term
| what anchors most of the extraocular muscles |
|
Definition
|
|
Term
| what are the movements of the extraocular muscles |
|
Definition
| extorsion, intorsion, medial, lateral, adduction, abduction |
|
|
Term
|
Definition
| looking to the outer corner (up or down) |
|
|
Term
|
Definition
| looking to the inner corner (up or down0 |
|
|
Term
|
Definition
| looking away from the nose |
|
|
Term
|
Definition
|
|
Term
| what muscles would cause one to look up and to their right |
|
Definition
| inferior oblique and superior rectus |
|
|
Term
| what muscles would cause one to look up with both eyes |
|
Definition
| superior rectus and inferior oblique |
|
|
Term
| what muscles would cause one to look up and to their left |
|
Definition
| superior rectus inferior oblique |
|
|
Term
| what muscles would cause one to look to their right |
|
Definition
| lateral and medial rectus |
|
|
Term
| what muscles would cause one to look to their left |
|
Definition
| lateral and medial rectus |
|
|
Term
| what muscles would cause one to look down and to the right |
|
Definition
| superior oblique, inferior rectus, |
|
|
Term
| what muscles would cause one to look down |
|
Definition
| superior oblique, inferior rectus |
|
|
Term
| what muscles would cause one to look down and to the left |
|
Definition
| superior oblique, inferior rectus, |
|
|
