front 1 The eyelids are covered externally by ______ ______ and internally by the ______ ______, which is continuous with the ______ ______. | back 1 thin skin, palpebral conjunctivum, bulbar conjunctivum |
front 2 The muscular portion of the eyelid is formed by the ______ ______, which is innervated by the ______ nerve, also known as cranial nerve ______. | back 2 orbicularis oculi, facial, VII |
front 3 The edges of the eyelids are lubricated by the ______ glands, also known as ______ glands. | back 3 tarsal, Meibomian |
front 4 In the corneal reflex, the afferent limb is carried by the ______ nerve (CN ______), and the efferent limb is carried by the ______ nerve (CN ______), which contracts the ______ ______ muscle. | back 4 trigeminal, V, facial, VII, orbicularis oculi |
front 5 Loss of the corneal reflex due to ______ nerve injury can lead to ______ damage and eventual ______. | back 5 facial, corneal, ulceration |
front 6 The ______ ______ ______ elevates the upper eyelid and is innervated by the ______ nerve (CN ______). | back 6 levator palpebrae superioris, oculomotor, III |
front 7 Müller’s muscle, also called the ______ ______ muscle, is a ______ muscle innervated by ______ ______ axons from the ______ ______ ______. | back 7 superior tarsal, smooth, postganglionic sympathetic, superior cervical ganglion |
front 8 Paralysis of Müller’s muscle can lead to ______, or ______ of the upper eyelid, which is a feature of ______ ______. | back 8 ptosis, drooping, Horner's Syndrome |
front 9 Müller’s muscle, also known as the ______ ______ muscle, is a ______ muscle located in the ______ eyelid. | back 9 superior tarsal, smooth, upper |
front 10 Müller’s muscle is innervated by ______ ______ axons from the ______ ______ ______. | back 10 postganglionic sympathetic, superior cervical ganglion |
front 11 Tear production by the lacrimal gland is primarily controlled by ______ innervation from the ______ nerve (CN ______), with postganglionic fibers originating from the ______ ______. | back 11 parasympathetic, facial, VII, pterygopalatine ganglion |
front 12 In addition to parasympathetic input, the lacrimal gland also receives ______ innervation, which plays a supporting role in ______ control. | back 12 sympathetic, tear |
front 13 Tears contain ______ and ______, which help protect the eye from infection. | back 13 lysozyme, IgA |
front 14 Tears drain into the ______ ______, then through the ______ into the ______ ______, which empties via the ______ ______ into the ______ ______ ______. | back 14 lacrimal puncta, canaliculi, lacrimal sac, nasolacrimal duct, inferior nasal meatus |
front 15 The orbit is a ______-shaped cavity with its apex located at the ______ ______ in the ______ wing of the ______ bone. | back 15 pyramidal, optic canal, lesser, sphenoid |
front 16 The superior wall of the orbit is formed by the ______ portion of the ______ bone, and the medial wall is formed mostly by the ______ bone. | back 16 orbital, frontal, ethmoid |
front 17 The lateral wall of the orbit is formed by the ______ portion of the ______ bone and the ______ wing of the ______ bone. | back 17 frontal, zygomatic, greater, sphenoid |
front 18 The inferior wall of the orbit is formed mostly by the ______ bone, with additional contributions from the ______ and ______ bones. | back 18 maxillary, zygomatic, palatine |
front 19 at what angle do the orbital axes diverage? ______ deg | back 19 45 deg |
front 20 The apex of the orbit is located at the ______ ______ in the ______ wing of the ______ bone. | back 20 optic canal, lesser, sphenoid |
front 21 A blowout fracture occurs when the ______ walls of the orbit fracture, often involving nearby ______. | back 21 thin, sinuses |
front 22 Medial wall ______ fractures involve the ______ bone and can affect the ______ sinuses. | back 22 blowout, ethmoid, ethmoid |
front 23 Inferior wall blowout fractures involve the ______ bone and can affect the ______ sinuses. | back 23 maxillary, maxillary |
front 24 Superior wall blowout fractures can affect the ______ lobe of the ______. | back 24 frontal, brain |
front 25 Bleeding into the orbit posteriorly after a fracture may cause the eye to protrude, a condition called ______. | back 25 exophthalmos |
front 26 Exophthalmos is the ______ of the ______, which can be caused by various conditions such as bleeding into the ______ ______. | back 26 protrusion, eyeball, eye socket |
front 27 The orbit contains the ______ (periosteum), ______ ______ that provide padding and allow ______ movements, ______ and ______, ______ muscles, the ______ (bulbus oculi), and the ______ apparatus. | back 27 periorbita, orbital fat, eye, nerves, vessels, extraocular, eye, lacrimal PONEEL |
front 28 What is 1? | back 28 superior rectus muscle and fascial sheath |
front 29 What is 2? | back 29 lacrimal gland |
front 30 What is 3? | back 30 lateral rectus muscle and fascial sheath |
front 31 What is 4? | back 31 periorbita |
front 32 What is 5? | back 32 sclera |
front 33 What is 6? | back 33 retrobulbar fat (orbital fat body) |
front 34 What is 7? | back 34 inferior oblique muscle and fascial sheath |
front 35 What is 8? | back 35 inferior rectus muscle and fascial sheath |
front 36 What is 9? | back 36 sclera |
front 37 What is 10? | back 37 periorbita |
front 38 What is 11? | back 38 medial rectus muscle and fascial sheath |
front 39 What is 12? | back 39 superior oblique muscle and fascial sheath |
front 40 What is 13? | back 40 levator palpebrae superioris muscle and fascial sheath |
front 41 The major blood supply to the orbit is the ______ artery, which is the first branch of the ______ ______ artery. | back 41 ophthalmic, internal carotid |
front 42 The ______ artery of the ______ enters the optic nerve; its occlusion can cause ______ in the eye. | back 42 central, retina, blindness |
front 43 What is 1? | back 43 supratrochlear artery |
front 44 What is 2? | back 44 supra-orbital artery |
front 45 What is 3? | back 45 anterior ciliary artery |
front 46 What is 4? | back 46 zygomagitcofacial artery |
front 47 What is 5? | back 47 zygomaticotemporal artery |
front 48 What is 6? | back 48 long posterior ciliary artery |
front 49 What is 7? | back 49 central artery of retina |
front 50 What is 8? | back 50 middle meningeal artery |
front 51 What is 9? | back 51 lacrimal artery |
front 52 What is 10? | back 52 internal carotid artery |
front 53 What is 11? | back 53 opthalmic artery |
front 54 What is 12? | back 54 optic nerve (CN II) |
front 55 What is 13? | back 55 short posterior ciliary artery |
front 56 What is 14? | back 56 anterior and posterior ethmoidal arteries in canals in ethmoid bone |
front 57 What is 15? | back 57 dorsal nasal artery |
front 58 The ______ artery of the ______ enters the ______ nerve to supply the ______ retina. | back 58 central, retina, optic, inner |
front 59 The ______ ______ arteries penetrate the ______ to supply the ______ and ______ retina, including the pigment epithelium and rods and cones. | back 59 posterior ciliary, sclera, choroid, outer |
front 60 What is 1? | back 60 supratrochlear artery |
front 61 What is 2? | back 61 anterior ethmoidal artery |
front 62 What is 3? | back 62 posterior ethmoidal artery |
front 63 What is 4? | back 63 continuation of opthalmic artery |
front 64 What is 5? | back 64 opthalmic artery |
front 65 What is 6? | back 65 internal carotid artery |
front 66 What is 7? | back 66 central retinal artery |
front 67 What is 8? | back 67 posterior ciliary artery |
front 68 What is 9? | back 68 zygomatic branches |
front 69 What is 10? | back 69 supraorbital artery |
front 70 The ______ artery, a branch of the ______ artery, forms an anastomosis with the ______ artery. | back 70 infraorbital, maxillary, ophthalmic |
front 71 What is 1? | back 71 supraorbital artery |
front 72 What is 2? | back 72 supratrochlear artery |
front 73 What is 3? | back 73 opthalmic artery |
front 74 What is 4? | back 74 angular artery |
front 75 What is 5? | back 75 infraorbital artery |
front 76 What is 6? | back 76 maxillarty artery |
front 77 What is 1? | back 77 supra-orbital vein |
front 78 What is 2? | back 78 vorticose vein |
front 79 What is 3? | back 79 superior ophthalmic vein |
front 80 What is 4? | back 80 to cavernous sinus |
front 81 What is 5? | back 81 inferior ophthalmic vein |
front 82 What is 6? | back 82 to pterygoid venous plexus |
front 83 What is 7? | back 83 infra-orbital vein |
front 84 What is 8? | back 84 angular vein |
front 85 What is 9? | back 85 facial vein |
front 86 What is 1? | back 86 pterygoid plexus |
front 87 What is 2? | back 87 inferior ophthalmic vein |
front 88 What is 3? | back 88 cavernous sinus |
front 89 What is 4? | back 89 superior ophthalmic vein |
front 90 What is 5? | back 90 nasofrontal vein |
front 91 What is 6? | back 91 angular vein |
front 92 What is 7? | back 92 facial vein |
front 93 The following structures pass through the tendinous ring: the ______ nerve (both superior and inferior divisions, CN ______), the ______ nerve, the ______ nerve (CN ______), the ______ nerve (CN ______), and the ______ artery (within the ______ nerve). | back 93 oculomotor, III, nasociliary, abducent, VI, optic, II, ophthalmic, optic |
front 94 The extraocular eye muscles that do not attach to the tendinous ring are the ______ ______ and the ______ ______. | back 94 superior oblique, inferior oblique |
front 95 The muscles that attach to the tendinous ring and their functions are:
| back 95 lateral rectus inferior rectus medial rectus superior rectus |
front 96 What is 1? | back 96 inferior ophthalmic vein |
front 97 What is 2? | back 97 abducens nerve (CN VI) |
front 98 What is 3? | back 98 lateral rectus |
front 99 What is 4? | back 99 nasociliary nerve |
front 100 What is 5? | back 100 oculomotor nerve (CN III), superior division |
front 101 What is 6? | back 101 trochlear nerve (CN IV) |
front 102 What is 7? | back 102 superior ophthalmic vein |
front 103 What is 8? | back 103 superior orbital fissure |
front 104 What is 9? | back 104 frontal nerve |
front 105 What is 10? | back 105 lacrimal nerve (CN V1) |
front 106 What is 11? | back 106 superior rectus |
front 107 What is 12? | back 107 levator palpebral superioris |
front 108 What is 13? | back 108 optic nerve (CN II) |
front 109 What is 14? | back 109 superior oblique |
front 110 What is 15? | back 110 medial rectus |
front 111 What is 16? | back 111 ophthalmic artery |
front 112 What is 17? | back 112 common tendinous ring |
front 113 What is 18? | back 113 inferior rectus |
front 114 What is 19? | back 114 oculomotor nerve (CN III), inferior divison |
front 115 What is 1? | back 115 supratrochlear nerve |
front 116 What is 2? | back 116 medial rectus muscle |
front 117 What is 3? | back 117 superior oblique muscle |
front 118 What is 4? | back 118 infratrochlear nerve |
front 119 What is 5? | back 119 nasociliary nerve |
front 120 What is 6? | back 120 trochlear nerve (IV) |
front 121 What is 7? | back 121 ophthalmic nerve (V1) |
front 122 What is 8? | back 122 oculomotor nerve (III) |
front 123 What is 9? | back 123 trochlear nerve (IV) |
front 124 What is 10? | back 124 abducens nerve (VI) |
front 125 What is 11? | back 125 tentorium cerebelli |
front 126 What is 12? | back 126 tentorial nerve (meningeal) branch of ophthalmic nerve |
front 127 What is 13? | back 127 trigeminal (semilunar) ganglion |
front 128 What is 14? | back 128 maxillary nerve (V2) |
front 129 What is 15? | back 129 frontal nerve |
front 130 What is 16? | back 130 lateral rectus muscle |
front 131 What is 17? | back 131 lacrimal nerve |
front 132 What is 18? | back 132 superior rectus muscle |
front 133 What is 19? | back 133 levator palpebral superioris muscle |
front 134 What is 20? | back 134 lateral branch of supraorbital nerve |
front 135 What is 21? | back 135 medial branch of supraorbital nerve |
front 136 The extrinsic eye muscles and their innervation are:
| back 136 oculomotor, III trochlear, IV abducens, VI |
front 137 What is 1? | back 137 superior oblique muscle |
front 138 What is 2? | back 138 medial rectus muscle |
front 139 What is 3? | back 139 inferior rectus muscle |
front 140 What is 4? | back 140 common tendinous ring |
front 141 What is 5? | back 141 leavtor palpebrae superioris muscle |
front 142 What is 6? | back 142 superior rectus muscle |
front 143 What is 7? | back 143 optic nerve |
front 144 What is 8? | back 144 lateral rectus muscle |
front 145 What is 9? | back 145 superior rectus muscle |
front 146 What is 10? | back 146 levator palpebrae superioris muscle |
front 147 What is 1? | back 147 superior oblique |
front 148 What is 2? | back 148 superior rectus |
front 149 What is 3? | back 149 medial rectus |
front 150 What is 4? | back 150 inferior rectus |
front 151 What is 5? | back 151 lateral rectus |
front 152 What is 6? | back 152 inferior oblique |
front 153 action of medial rectus? | back 153 adduct eyeball |
front 154 action of lateral rectus? _____ _____ | back 154 abducts eyeball |
front 155 The ______ ______ elevates the eyeball and has secondary actions of ______ and ______ rotation. | back 155 superior rectus, adduction, medial |
front 156 The ______ ______ depresses the eyeball and has secondary actions of ______ and ______ rotation. | back 156 inferior rectus, adduction, lateral |
front 157 The ______ ______ depresses the eyeball and also ______ and ______ rotates it. It is the primary ______ rotator. | back 157 superior oblique, abducts, medially, medial |
front 158 The ______ ______ elevates the eyeball and also ______ and ______ rotates it. It is the primary ______ rotator. | back 158 inferior oblique, abducts, laterally, lateral |
front 159 what is the primary medial rotator of the eyeball? ______ ______ | back 159 superior oblique |
front 160 what is the primary lateral rotator? ______ ______ | back 160 inferior oblique |
front 161 how do you clinically test superior rectus? have patient look ______ , then ______ | back 161 have patient look laterally, then up |
front 162 how do you clinically test inferior rectus? have patient look ______ , then ______ | back 162 have patient look laterally, then down |
front 163 how do you clinically test superior oblique? have patient look ______ , then ______ | back 163 have patient look medially, then down |
front 164 how do you clinically test inferior oblique? have patient look ______ , then ______ | back 164 have patient look medially, then up |
front 165 how do you clinically test medial & lateral recti? look ______ (medial oblique) & ______ (lateral oblique) | back 165 look medially (medial oblique) & laterally (lateral oblique) |
front 166 What is 1? | back 166 superior rectus (III) |
front 167 What is 2? | back 167 lateral rectus (VI) |
front 168 What is 3? | back 168 inferior rectus (III) |
front 169 What is 4? | back 169 inferior oblique (III) |
front 170 What is 5? | back 170 medial rectus (III) |
front 171 What is 6? | back 171 superior oblique (IV) |
front 172 What is 7? | back 172 superior rectus (III) |
front 173 What is 8? | back 173 lateral rectus (VI) |
front 174 What is 9? | back 174 inferior rectus (III) |
front 175 With abducens nerve palsy, during ______ gaze, the affected eye is pulled ______ due to unopposed action of the ______ ______, because the ______ ______ is denervated. | back 175 primary, medially, medial rectus, lateral rectus |
front 176 what nerve has been damaged/affected? | back 176 abducent nerve (CN VI) palsy |
front 177 In abducent nerve (CN ______) palsy, during ______ gaze, the affected eye is pulled ______ due to unopposed ______ ______. | back 177 VI, primary, medially, medial rectus |
front 178 In trochlear nerve palsy:
| back 178 hypertropia, upward, superior oblique extorsion, laterally diplopia downward, away |
front 179 what nerve has been damaged/affected? | back 179 trochlear nerve (CN IV) palsy |
front 180 In oculomotor nerve palsy:
| back 180 down, out, lateral rectus, superior oblique elevate adduct, adduction diplopia dilated, sympathetic, dilator pupillae |
front 181 What is this? | back 181 oculomotor nerve palsy |
front 182 What is 1? | back 182 lacrimal canaliculi |
front 183 What is 2? | back 183 lacrimal sac |
front 184 What is 3? | back 184 nasolacrimal |
front 185 What is 4? | back 185 inferior nasal meatus |
front 186 Axons from the _____ act as the afferent part of pupillary reflexes. | back 186 retina |
front 187 Pupillary reflexes axons terminate in the _____ area and the _____ _____ | back 187 pretectal superior colliculus |
front 188 Some retinal ______ cell axons bypass the ______ ______ nucleus and terminate in the ______ area and the ______ ______. At least some of these axons are involved in ______ reflexes. | back 188 ganglion, lateral geniculate, pretectal, superior colliculus, optic |
front 189 In the pupillary light reflex, shining a light into one eye causes the ______ to ______, testing the integrity of ______ innervation to the pupil. | back 189 pupil, constrict, parasympathetic |
front 190 The consensual reflex refers to constriction of the pupil in the ______ eye when light is shined into the ______ eye. | back 190 contralateral, opposite |
front 191 The consensual reflex is the ______ of the pupil in the ______ eye when light is shined into the ______ eye. | back 191 constriction, contralateral, opposite |
front 192 In the accommodation reflex, when a patient looks at a ______ object, the pupils ______ bilaterally. | back 192 near, constrict |
front 193 During the accommodation reflex, the ______ muscles contract to allow the ______ to thicken for ______ vision. | back 193 ciliary, lenses, near |
front 194 Dilated pupils that do not respond to light suggest unopposed action of the ______ ______ muscle, which is innervated by the ______ nervous system. | back 194 dilator pupillae, sympathetic |
front 195 Non-reactive dilated pupils may indicate brainstem damage involving the ______ -______ nucleus. | back 195 Edinger-Westphal |
front 196 In presbyopia, the ______ loses its ______ and can no longer ______, making it difficult to focus on ______ objects. | back 196 lens, flexibility, thicken, near |
front 197 Under parasympathetic control, the ______ muscles contract, the ______ thickens, and the ______ constrict. | back 197 ciliary, lens, pupils |
front 198 The test used to detect Marcus Gunn pupil (afferent pupillary defect) is the ______ ______ test. | back 198 swinging light |
front 199 When shining a light into a normal eye during the swinging light test, the pupil in that eye ______ and the pupil in the other eye ______ (consensual light reflex). | back 199 constricts, constricts |
front 200 In a normal swinging light test, when the light is swung to the other eye, that pupil should ______ more. | back 200 constrict |
front 201 If during the swinging light test the pupil ______ when the light is shined in that eye, it indicates an ______ defect, often due to an ______ nerve problem. | back 201 dilates, afferent, optic |
front 202 Argyll Robertson pupils are characterized by small, irregular pupils that fail to ______ to ______ but do constrict during ______. Argyll Robertson pupils are associated with ______ | back 202 constrict, light, accommodation neurosyphilis |