Using the Eye Model, Identify:
1. Lacrimal apparatus = lacrimal gland 🡪 lacrimal ducts
🡪 lacrimal puncta /lacrimal canals 🡪 lacrimal sac
2. Palpebral Conjunctiva vs ocular (bulbar) conjunctiva
3. Extrinsic eye muscles move eyeball in socket:
lateral rectus, medial rectus, superior rectus,
inferior rectus, inferior oblique, superior oblique
4. Eye Wall Organization & Internal Anatomy:
Fibrous Layer: sclera and cornea
Vascular Layer: choroid, ciliary body, pupil,iris
Sensory Layer/ Retina: neural layer w/ rods & cones
Optic disc, Macula lutea, Fovea centralis, Lens
Suspensory ligaments
Aqueous humor in anterior compartment
Vitreous body in posterior compartment
vision
Slide of Retina
sense organs
hearing and balance
Using the model, identify:
1. External Ear with Pinna (auricle) & lobule
External auditory canal
2. Middle Ear: Auditory ossicles: malleus, incus, stapes
Auditory tube = Eustachian tube = Pharyngotympanic tube
3. Inner Ear: Bony labyrinth = cochlea + vestibule
+ semicircular canals filled w/perilymph
Cochlea with vestibule, Oval window, Round window
Organ of Corti w/neurons that are stimulated by sound waves
Semicircular canals: anterior, posterior & lateral
Used to send equilibrium info via Vestibulocochlear nerve
🡪 thalamus🡪 auditory cortex of temporal lobe
4. Trace Path of Sound Wave through the Ear:
External Auditory Canal🡪 Tympanic membrane 🡪 Malleus 🡪
Incus 🡪 Stapes 🡪 Oval Window 🡪 Vestibular duct (scala) of
Cochlea🡪 Tympanic duct of Cochlea 🡪 Round Window
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