Chapter 15 The Special Senses1. Why does inhaling deeply and slowly through the nose help to identify an odor?a. More air containing the odor is brought into contact with the olfactory epithelium.b. Impulses originate slowly in the olfactory epithelium.c. The tissue needs more time in contact with the odor.d. Threshold for odor detection is high.e. Receptors in the olfactory epithelium are highly specific.2. Sensory structures that detect taste area. palates.b. papillae.c. taste buds.d. ciliary membranes.e. thermoreceptors.3. Some thyroid disorders are characterized by an increase in the width of the palpebral fissure. This would be an increase in the distance between thea. eyebrows.b. eyelashes.c. eyelids.d. eyes.e. lacrimal glands.4. Which of the following cranial nerves innervates an eye muscle?a. opticb. facialc. abducensd. trigeminale. vagus5. Blood vessels enter the eye and nerve processes exit the eye at thea. optic disc.b. macula lutea.c. sensory retina.d. fovea centralis.e. pupil.6. For distant vision,a. the lens is more spherical.b. the suspensory ligaments relax.c. the ciliary muscles are relaxed.d. light is refracted more by the lens than by the humors.e. the lens is thickened.7. When rhodopsin is exposed to light,a. more rhodopsin is formed.b. retinal separates from opsin.c. the cones generate action potentials.d. free retinal is converted to vitamin A.e. retinal becomes more attached to opsin.8. A person loses all vision in their left eye. One possible cause could be damage to thea. optic chiasma.b. left optic tract.c. optic nerve in the left eye.d. right lateral geniculate nucleus.e. right visual cortex in the occipital lobe.9. Damage to the vestibulocochlear nerve would result in some loss ofa. hearing and balance.b. hearing and taste.c. smell.d. taste.e. hearing and sight.10. Olfaction is the sense of smell. What does “A” represent?a. olfactory bulbb. cilia (olfactory hairs)c. olfactory neurond. axon of olfactory neurone. olfactory tract Chapter 16 Autonomic Nervous System________________________________________1. If a somatic sensory neuron is impaired, which of the following is most likely to occur?a. loss of muscle toneb. loss of proprioceptionc. paralysisd. deathe. tetanus2. Chain ganglia are part of thea. central nervous system.b. sympathetic branch of the ANS.c. somatic motor branch of the ANS.d. parasympathetic branch of the ANS.e. spinal cord.3. The membranes of all postganglionic neurons in autonomic ganglia havea. somatotrophic receptors.b. muscarinic receptors.c. adrenergic receptors.d. nicotinic receptors.e. macrotinic receptors.4. Autonomic reflexesa. are impossible.b. are integrated somewhere in the CNS.c. have efferent input and afferent output.d. are an example of positive feedback.e. are harmful.5. Which of the following is NOT a parasympathetic effect?a. constriction of the pupils of the eyeb. contraction of the urinary bladderc. decreased heart rated. dilation of the bronchioles in the lungse. increased gastric secretions6. The figure illustrates the parasympathetic division. What does “A” represent?a. preganglionic neuronsb. pelvic nervesc. cranial nervesd. postganglionic neuronse. terminal ganglia7. The figure illustrates the parasympathetic division. What does “B” represent?a. preganglionic neuronsb. pelvic nervesc. cranial nervesd. postganglionic neuronse. terminal ganglia8. The figure illustrates the parasympathetic division. What does “C” represent?a. preganglionic neuronsb. pelvic nervesc. cranial nervesd. postganglionic neuronse. terminal ganglia9. The figure illustrates the parasympathetic division. What does “D” represent?a. preganglionic neuronsb. pelvic nervesc. cranial nervesd. postganglionic neuronse. terminal ganglia10. The figure illustrates the parasympathetic division. What does “E” represent?a. preganglionic neuronsb. pelvic nervesc. cranial nervesd. postganglionic neuronse. terminal ganglia
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