Vascular tunic is the middle layer of the eye. Between the fibrous tunic and the retina.
100
Where is the retina located?
The retina is the inner layer of the eye.
100
The pinna (auricle) conducts sound waves through the auditory canal to the _______.
Sound waves are conducted through the auditory canal to the tympanic membrane.
100
Name 3 causes of conduction deafness.
Causes of conduction deafness may include build up of wax, trapped water, fused ossicles, ruptured tympanic membrane
200
The fibrous tunic has ___ parts. Name them.
The 2 parts of the fibrous tunic are the cornea and the sclera.
200
The structure that absorbs light and provides nutrition to the retina is the___.
Choroid absorbs light and provides nutrition to the retina.
200
The blindspot of the retina is also called the___________.
The optic disc is also called the blindspot.
200
Name the ossicles and state their location.
The malleus, incus, and stapes are found in the middle ear.
200
Where are the anterior and posterior chambers located?
Anterior and posterior chambers are parts of the anterior cavity. Anterior chamber is anterior to iris, posterior chamber is posterior to iris. Both chambers are anterior to lens.
300
This is the part of the fibrous tunic where light first enters the eye.
Light first enters the eye through the cornea.
300
The ring-shaped structure that contains the ciliary muscles is the ____.
Ciliary body contains the ciliary muscles
300
The area of the retina responsible for most acute vision is the________
The fovea centralis is the area of the retina responsible for most acute vision.
300
The Eustachian tube connects the middle ear with the _____ and functions to _________.
Eustachian tube connects the middle ear with the nasopharynx and helps to equalize pressure on either side of the tympanic membrane.
300
In which part of the ear and in what structure are organs of Corti located?
Organs of Corti are located in the cochlea within the inner ear.
400
The fibrous tunic and the inside of the eyelids is covered by an epithelial membrane called the ____.
The conjunctiva is the epithelial membrane that covers the eyeball and the inside of the eyelids.
400
Function of ciliary muscles is to ________.
Ciliary muscles adjust the shape of the lens for near and far vision.
400
Name the photosensitive cells found on the retina.
Rods and cones are the photosensitive cells found on the retina.
400
What are perilymph and endolymph and where are they found?
Perilymph and endolymph are fluids found in the inner ear.
400
The stapes is connected to what two structures?
Stapes is connected to the incus and the oval window.
500
Name and describe the parts of the fibrous tunic.
Tell one fact about each part.
Outer protective layer of eye. Two parts: sclera (white) and cornea (transparent)
500
Name the structure that adjusts the size of the pupil and indicate what type of muscle it is made of.
The iris adjusts the size of the pupil. It is made of smooth muscle.
500
Name the cavity found anterior to the retina but posterior to the lens and describe its contents.
The posterior cavity is between the retina and the lens. It contains the jelly-like vitreous humor aka vitreous body.
500
Distinguish between static and dynamic equilibrium and indicate the structures responsible for each.
Static equilibrium- orientation of head to ground- utricle and saccule
Dynamic equilibrium- movement- semicircular canals
500
Distinguish between rods and cones in terms of how they function in dim and bright light.
Rods are more active in dim light (shades of grey) and cones are more active in bright light (colors).