Biology, Pages 1045-1077

action potentials active animal axons basilar membrane bind bipolar cells body mass bones brain brane brates Ca2+ calcium causes cavity ceptor chemoreceptors choroid cochlea cochlear duct Concept Check cones cortex cross-bridge cytosol depolarizes detect disk energy exoskeleton fast Figure fluid frequency function glutamate gravity hair cells hydrostatic skeleton hyperpolarizes inner ear insects invertebrates ions lens light locomotion mechanoreceptors middle ear molecule moth motor neuron motor unit move movement muscle fiber myosin nervous system neurotransmitter olfactory opsin optic nerve organ of Corti oxidative pathway photoreceptors pigment planarians plasma membrane pressure waves prey recep receptor cells receptor potential release retina rhodopsin rnuscle rods saccule sarcomere semicircular canals sensations Sensory and Motor sensory neurons sensory receptors single-lens eye skeletal muscle skeletal muscle fiber sound waves stapes statocysts stimulated structures swimming synapse taste thick thin filaments tion tlre transmit trat twitch tympanic membrane types vertebrate skeletal vibrate