Chapter 26: Self-Quiz ___________ are integration centers in neurons. dendrites axons cell bodies ion channels synapses Disturbances in body temperature, hunger perception, menstrual cycles, water balance, and sexual arousal are symptoms of defects in the cerebrum thalamus medulla hypothalamus cerebellum Neurotransmitters can be eliminated from synapses by diffusing away enzymatic destruction active transport into a neuron all of the above none of the above What is the difference between the nervous system and the endocrine system? The nervous system responds to danger, whereas the endocrine system responds to "normal" activities. The speed of response is different. The chemicals that transmit the signal are different. The nervous system is involved with control, whereas the endocrine is involved with coordination. The nervous system is entirely electrical in nature, whereas the endocrine system is entirely chemical in nature. The functional unit of the nervous system is the neuron axon cell Body neurotransmitter nerve Which of the following represents the direction a nerve impulse travels within a single neuron? synaptic terminal -> cell body -> axon -> dendrite cell body -> dendrite -> axon -> synaptic terminal synaptic terminal -> axon -> cell body -> dendrite dendrite -> cell body -> axon -> synaptic terminal synaptic terminal -> dendrite -> axon cell -> body The cell bodies of motor neurons are located in the gray matter of the spinal cord in the brain outside the spinal cord in the muscles next to the sensory terminals Color vision is a function of ________ cells. cochlear cupular corneal choroid cone Basilar and tectorial refer to types of membranes in the ear eyes dendrites proprioceptors canals To go from the pharynx to the middle ear, a germ must travel through the oval window vestibular apparatus eustachian tube cochlea auditory canal The fovea is the "blind spot" a clear area in front of the pupil and iris the area of the retina where an optic nerve exits the eye a point of attachment between the retina and choroid coat a central focal region of the vertebrate retina Light entering the eye and striking the choroid would travel, in order, through the lens, vitreous humor, cornea, aqueous humor, and retina retina, aqueous humor, lens, vitreous humor, and cornea cornea, aqueous humor, retina, vitreous humor, and lens cornea, aqueous humor, lens, vitreous humor, and retina lens, aqueous humor, cornea, vitreous humor, and retina Pain perception is carried out by a special type of mechanoreceptor proprioceptor chemoreceptor magnetoreceptor Thermoreceptor Receptor potentials are ______________________ the strength of the stimulus. unrelated to the same regardless of inversely proportional to directly proportional to much greater than Which of the following is a mechanoreceptor? olfactory receptor heat receptor hair cell rods taste bud If the doctor says that you have a middle ear infection, which of the following would not be involved? the eustachian tube the hammer the tympanic membrane the anvil the cochlea In low light, everything appears black or white because: No colored light is reflected to the eye. Rods are more sensitive to light than are cones. Few action potentials are stimulated at low light. Only white light is available at night. The diffuse light of night does not fall on the fovea. In order for chemicals to be sensed in the nose, they must first enter the mouth bind to taste buds cause bending of hair cells in the upper nasal cavity stimulate the cones diffuse into the mucus and bind to receptors Designed in cooperation with Andrew Stull and Steven Brunasso. Last Update - July 25, 1997 © Prentice-Hall, Inc. A Simon & Schuster Company Upper Saddle River, New Jersey 07458 Legal Statement
Designed in cooperation with Andrew Stull and Steven Brunasso. Last Update - July 25, 1997
Last Update - July 25, 1997
