Anatomy and Function of The Eyes and Ears
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26 Terms
A is…
the pinna.
B is…
the auditory canal.
C is…
the tympanic membrane.
What is the function of the tympanic membrane?
Separates the outer ear from the middle ear; vibrates in response to sound waves, converting acoustic energy into mechanical energy.
D is…
the malleus (hammer).
E is…
the incus (anvil).
F is…
the stapes (stirrup).
What are the 3 bones in the ossicles, and what is the function of this group of bones?
The three bones in the ossicles are the malleus, incus, and stapes, which function to transmit sound vibrations from the eardrum to the inner ear.
G is…
the oval window.
What is the function of the oval window?
The oval window is a membrane-covered opening that transmits sound vibrations from the stapes to the fluid of the inner ear, facilitating hearing.
H is…
the cochlea.
What is the function of the cochlea?
The cochlea is a spiral-shaped organ in the inner ear that converts sound vibrations into electrical signals, which are then sent to the brain for interpretation.
What is the function of the basilar membrane?
The basilar membrane is a structure in the cochlea that vibrates in response to sound waves, enabling the detection of different frequencies and contributing to the process of hearing.
What is the function of the auditory nerve?
The auditory nerve transmits electrical signals from the cochlea to the brain, allowing for the perception of sound.
A is…
the cornea.
What is the function of the cornea?
The cornea is a transparent front layer of the eye that refracts light and helps to focus images onto the retina.
B is…
the iris.
What is the function of the iris?
The iris is the colored part of the eye that controls the size of the pupil, regulating the amount of light entering the eye and helping to protect the retina.
C is…
the pupil.
What is the function of the pupil?
The pupil is the opening in the center of the iris that allows light to enter the eye, adjusting its size in response to light conditions to help focus images on the retina.
D is…
the lens.
What is the function of the lens?
The lens is a transparent structure in the eye that helps focus light onto the retina by changing shape, allowing for clear vision at various distances.
E is…
the retina.
What is the function of the retina?
The retina is a light-sensitive layer at the back of the eye that converts incoming light into neural signals, which are sent to the brain to form images. It is essential for vision.
F is…
the auditory nerve.
What is the function of the optic nerve?
The optic nerve transmits visual information from the retina to the brain, allowing us to perceive images.