Podcast
Questions and Answers
What is the name of the high-velocity eye movements that keep the image focused on the fovea centralis?
What is the name of the high-velocity eye movements that keep the image focused on the fovea centralis?
- Fixational movements
- Saccadic eye movements (correct)
- Vergence movements
- Smooth pursuit movements
Which part of the ear contains the scala media or cochlear duct filled with endolymph?
Which part of the ear contains the scala media or cochlear duct filled with endolymph?
- Inner ear
- Middle ear
- Cochlea (correct)
- Spiral organ
What occurs in the pigment epithelial cells?
What occurs in the pigment epithelial cells?
- Activation of the enzyme phosphodiesterase
- Activation of the G-protein/2nd messenger system
- Synthesis of Bathorhodopsin
- Conversion of all-trans-retinol to 11-cis-retinal (correct)
What is the main factor that determines visual acuity?
What is the main factor that determines visual acuity?
What is the role of phosphodiesterase in the visual cycle of retinal rod cells?
What is the role of phosphodiesterase in the visual cycle of retinal rod cells?
Where are the sensory hair cells located in the cochlea?
Where are the sensory hair cells located in the cochlea?
What effect does dissociation of rhodopsin have on the G-protein/2nd messenger system?
What effect does dissociation of rhodopsin have on the G-protein/2nd messenger system?
What happens when a person enters a dark room after being in the light, as per dark adaptation?
What happens when a person enters a dark room after being in the light, as per dark adaptation?
What is the typical ratio of cones to ganglion cells?
What is the typical ratio of cones to ganglion cells?
In what condition does the convergence of rods onto a single ganglion cell increase light sensitivity?
In what condition does the convergence of rods onto a single ganglion cell increase light sensitivity?
What is the main cause of blindness in people with age-related macular degeneration (AMD)?
What is the main cause of blindness in people with age-related macular degeneration (AMD)?
What type of receptive fields do some ganglion cells have?
What type of receptive fields do some ganglion cells have?
Which specialized epithelium houses hair cells for detecting linear acceleration?
Which specialized epithelium houses hair cells for detecting linear acceleration?
What is embedded in the gelatinous otolithic membrane in the utricle and saccule?
What is embedded in the gelatinous otolithic membrane in the utricle and saccule?
What eye movement is produced when a person's body is spinning?
What eye movement is produced when a person's body is spinning?
Which condition is characterized by rotational vertigo, vestibular nystagmus, and tinnitus?
Which condition is characterized by rotational vertigo, vestibular nystagmus, and tinnitus?
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