Anatomy Lab Exam #3

LAB EXAM: Ch 17, 21 And 22 (Special Senses, Arteries, Veins)

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Side ASide B
Tarsal glands
Lacrimal glands
salt solution
The eyeball is wrapped in adipose tissue within the orbit. What is the function of the adipose tissue?
What are the 7 bones that form the bony orbit?
1. Maxilla 2. Ethmoid 3. Lacrimal 4. Palatine 5. Sphenoid 6. Zygomatic 7. Frontal
What us a sty?
A sty is the inflammation of a ciliary glands (modified sweat glands) that lie between tge eyelashes and help to lubricate the eyeball.
What is conjunctivitus?
Inflammation of the conjunctiva, which is the mucus membrane that lines the internal surface of the eyelids and eyeball.
Why might it be necessary to blow one's nose after having a good cry?
Tears released by lacrimal glands flush across the eyeball into the lacrimal canal to the lacrimal sacs to the nasolacrimal duct into the nasal cavity. 
Attaches the lens to the ciliary body
suspensory ligament
Fluid filling the anterior segment of the eye 
aqueous humor
The blind spot
optic disc
Contains muscle that controls the size of the pupil
Drains the aqueous humor from the eye
canal of Schlemn
"Sensory" tunic
Substance occupying the posterior segment of the eyeball
vitreous humor
Forms most of the pigmented vascular tunic
Tiny oit in the macula lutea; contains only cones
foves centralis
Important light-bending structure of the eye; shape can be modified
Anterior transparent part of the fibrous tunic
Composed of tough, white, opaque, fibrous connective tissue
The intrinsic eye muscles are under the control of which of system?
Autonomic nervous system
Collectively called the ossicles
1. Anvil (incus) 2. Hammer (malleus) 3. Stirrup (stapes)
Ear structures involved with balance
1. Vestibule 2. Semicircular canals
Transmits sound vibrations to the ossicles
tympanic membrane
Three circular passages each in a different plane of space
semicircular canals
transmits the vibratory motion of the stirrup to the fluid in the inner ear
oval window
Passage between the throat and the tympanic cavity
auditory (pharyngotympanic) tube
Passage between the throat and the tympanic cavity
auditory (pharyngotympanic) tube
fluid contained within the membranous labryrinth 
contains the organ of corti
cochlear duct
Sites of the maculae
1. Vestibular sacs 2. Otolith
Hair cells of organ of Corti rest on this membrane
basilar membrane
Gel-like membrane overlying the hair cells of the organ of Corti
tectorial membrane
Contains the cristae ampullaris 
Function in static equilibrium
1. Otholis 2. Vestibular nerve 3. Vestibular sacs
Function of the dynamic equilibrium
1. Semicircular ducts 2. Ampulla 3. Cupula 4. Vestibular nerve
Carries auditory information to the brain
cochlear nerve
Gelatinous cap overlaying hair cells of the crista ampullaris
Grains of calcium carbonate in the maculae

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