damage to the vestibular system does not produce which of the following systems? inability to percieve motion poor balance rotation of rues during head movement difficulty visually fixating on objexys and road signs while walking
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Which of the following might result from a disruption of your vestibular sense? a. Inability to detect the position of your arm without looking at it b. Loss of the ability to detect bitter tastes c. Dizziness and a loss of balance d. An inability to detect pain e. Loss of color vision
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Kelan H.
Motion sickness occurs when: a. the body moves more rapidly than the semicircular canal endolymph b. nystagmus occurs from left to right and endolymph movement is right to left c. the eyes are closed during motion d. vestibular and visual sensory information appears to detect different events e. all of the above contribute something to motion sickness Pitch discrimination is possible because different sounds: a. stimulate different regions of the eardrum b. are louder in the nearest ear c. arrive at the ear at different times d. stimulate different regions of the Organ of Corti e. stimulate the saccule or utricle The vitreous body: a. fills the anterior cavity b. helps to stabilize the eye and give physical support to the retina c. is replaced at the rate of 20% per year until middle age d. A, B, and C Static equilibrium receptors that report the position of the head in space relative to the pull of gravity are contained in which structure? a. Organ of Corti b. cristae ampullaris c. Pacinian corpuscles d. macula e. Golgi tendon organs Olfactory receptors send axons through the cribriform plate of the ethmoid bone. They synapse on neurons in the: a. medulla oblongata b. cerebral cortex c. olfactory bulb d. pons Conductive deafness can result from: a. impacted earwax b. ossification of the stapes c. exposure to loud noise d. overdoses of some drugs such as aspirin e. only a and b are related to conductive deafness Sound waves are converted into mechanical movements by the: a. auditory ossicles b. cochlea c. oval window d. round window e. tympanic membrane The quantity of neurotransmitter released by a hair cell involved in equilibrium: a. varies depending on the strength of the stimulus b. is affected by the direction the stereocilia are bent with respect to the kinocilium c. determines if a sensory neuron will be excited d. all of the above e. B and C only The portion of the eye that determines eye color is: a. conjunctiva b. cornea c. iris d. pupil e. canal of Schlemm If your vision is 20/15, this means that you can: a. see 20-point type at 15 feet b. sees objects at 20 feet that individuals with normal eyesight can see at 15 feet c. see objects at 15 feet that individuals with eye problems see at 20 feet d. see all 15 eye chart letters at 20 feet e. see objects that are 20 feet or less away Some neural tissues retain stem cells (basal cells) and thus the capacity to divide and replace lost neurons. Which of these special senses can replace its damaged neural receptors? a. olfaction b. hearing c. equilibrium d. A, B, and C e. B and C only Which of the following descriptions best matches the term otoliths? a. move up and down when the stapes moves back and forth b. transmit movement of the tympanic membrane to the inner ear c. bending these produces receptor potential in hair cells d. tiny weights necessary for the static sense of equilibrium e. seals the oval window If the neurons originating in the distal portion of the Organ of Corti were destroyed how might this affect the patient? a. poor balance when the patients eyes were closed b. difficulty in detecting the origin of high-pitched sounds c. partial sensory deafness for sounds of low pitch d. partial sensory deafness for sounds of high pitch e. both b and d could result
Adi S.
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