Describe the role of the otolith organs
What will be an ideal response?
The otolith organs provide information about the position of the head relative to gravity and detect changes in the rate of linear motion. The otolith organs, the utricle and the saccule, are saclike structures housed within a bony chamber situated between the semicircular canals and the cochlea. The hairs (kinocilium and stereocilia) of the receptor hair cells in these sense organs also protrude into an overlying gelatinous sheet, whose movement displaces the hairs and results in changes in hair cell potential. Many tiny crystals of calcium carbonate -- the otoliths ("ear stones") -- are suspended within the gelatinous layer, making it heavier and giving it more inertia than the surrounding fluid. When a person is in an upright position, the hairs within the utricle are oriented vertically and the saccule hairs are lined up horizontally.
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A. Cytosol B. Nucleus C. Organelles D. Inclusions
Lobes of the brain are named for the bones superficial to them and are part of the
A. cerebrum. B. cerebellum. C. diencephalon. D. metencephalon.
Misty is 16 and, with her family, is visiting her grandmother for Christmas. At the end of a week surrounded by tempting holiday food, Misty weighs herself and sees that she has gained five pounds. She confides to her mother that she ate all of a 1-lb box of chocolates on Christmas day, but didn't overeat in any other way. There are 500 kilocalories per 100 g of chocolate. 1 lb = 454 g. There are
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A sophisticated type of training that uses artificial intelligence to customize learning to the individual is called
A. Programmed instructions B. Interactive multimedia training C. Behavioral monitoring D. Intelligent tutoring systems