Olfactory receptors are found
Only in the superior portion of the nasal cavity
These cells provide for the sense of smell
Olfactory hair cells
These provide physical support, nourishment and electrical insulation for olfactory receptors
Supporting cells
Adaptation
Occurs rapidly
The olfactory tract
Projects to the cortical region controlled by the limbic system and part of the amygdala
These cells provide for the sense of taste
Gustatory cells
Taste buds are found
In the Epiglottis, pharynx, and the soft palate
Which of the following papillae do not contain taste buds
Filiform
Which of the following nerves serves in a gustatory function
Vagus
Which is not considered an accessory structure of the eye
Retina
Which of the following is the space between the upper and lower eyelids
Palpebral fissure
This is a thin layer that protects the anterior surface of the eyeball
Conjectiva
Infection of a sebaceous ciliary gland can result in
Sty
Which is the correct order in the flow of tears
Lacrimal gland, excretory lacrimal duct, superior of inferior lacrimal canal, lacrimal sac, nasolacrimal duct, and nasal cavity
How many extrinsic eye muscles are responsible for moving the eye
6
This is the transparent coat that covers the iris
Cornea
The main function of this structure is to regulate the amount of light entering the eyeball through the pupil
Iris
The lens is made of layers of protein called
Crystallins
This lies between the lens and the retina
Vitreous chamber
This structure protects the inner parts of the eyeball
Sclera
This darkly pigmented structure reduces light reflection within the eyeball
Chorid
Which of the below receptors is primarily used during high light situations
Cones
The first step in visual transduction is
Absorbing light by photopigments
Binocular vision
Gives depth perception
Which of the below structures acts to convert sound waves to vibrations
Tympanic membrane
Which of the below structures converts vibrations to action potentials
Organ of corti
Which of the below structures carries action potentials caused by sound transduction
Vestibulocochlear nerve
Outer layer is
Fibrous Tunic
What are made uo of gustatory receptor cells, supporting cells, and basal cells
Taste Buds
A bipolar neuron with cilia called olfactory hairs, also respond to an ordant when dissolved in mucus
Olfactory Receptor cell
Provide support and nourishment
Supporting cells
Replaces receptor cells
Basal cells
Respond to a tastant when dissolved in saliva
Gustatory receptor cells
What five types of taste are there
Bitter, Sweet, Sour, Salty, and Umami
Mucus membrane covering outer surface of the eyeball
Conjunctiva
"White" of the eye
Sclera
Transparent covering where light enters the front of eyeball
Cornea
The innermost layer of the eye; lines the sides and back of the eye
Retina
The central opening of the iris
Pupil
A thickened region that begins deep to the junction between the cornea and the sclera. Consists of the ciliary muscle and the ciliary processes.
Ciliary body
A vascular layer that separates the fibrous layer and the inner layer posterior to the ora serrata
Choroid
Middle layer
Vascular Tunic
A circular region just medial to the fovea; also known as the blind spot
Optic disk
A watery, fluid that circulates within the anterior cavity
Aqueous humor
A glassy, jellylike fluid located inside the bottom portion of the eye
Vitreous humor
Lacks blood vessels, consists of a capsule with proteins (crystallins) in layers; transparent
Lens
Cornea or lens has irregular curvature
Astigmatism
Distant objects seen clearly
Farsightedness (Hyperopia)
Close objects seen clearly
Nearsightedness (Myopia)
Is the automatic adjustment of the eye to give us clear vision
Accommodation
The lens divides the eyeball into two cavities; both are filled with aqueous humor
Anterior cavity--Anterior and Posterior chambers
Filled with vitreous humor; also known as vitreous chamber
Posterior cavity
Vitamin A deficiency causes
Night blindness (Nyctalopia)
Inherited inability to distinguish between certain colors
Color blindness
Maintenance of the body position relative to the force of gravity
Static Equilibrium
Maintenance of body position (mainly head) in response to rotational, acceleration and deceleration
Dynamic Equilibrium
A mass of gelatinous material covering the crista
Cupula