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Chapter 12 Senses

A/P 2 Ch.12 Special and general senses cram study

QuestionAnswer
1.Which step in sensory processing converts a stimulus into a graded potential? A. Transmission B. Projection C. Transduction D. Interpretation 1.C
2. Sensory adaptation is best demonstrated by which receptors? A. Nociceptors B. Mechanoreceptors C. Olfactory receptors D. Photoreceptors 2.C
3. Which receptor type responds to tissue damage? A. Chemoreceptor B. Mechanoreceptor C. Thermoreceptor D. Nociceptor 3.D
4. Free nerve endings are MOST commonly associated with which sensation? A. Fine touch B. Deep pressure C. Crude touch and itch D. Vibration 4.C
5. Which receptors detect deep pressure and vibration? A. Meissner’s corpuscles B. Pacinian corpuscles C. Muscle spindles D. Golgi tendon organs 5.B
6. Pain that is dull, aching, and difficult to localize is transmitted by which fibers? A. A-delta fibers B. Myelinated fibers C. C fibers D. Sensory interneurons 6.C
7. Referred pain occurs because: A. Pain receptors adapt slowly B. Visceral organs lack pain receptors C. Visceral and somatic fibers synapse on the same CNS neurons D. Pain fibers cross at the thalamus 7.C
8. Which structure detects muscle length and initiates stretch reflexes? A. Pacinian corpuscle B. Golgi tendon organ C. Muscle spindle D. Free nerve ending 8.C
9. Which cranial nerve is NOT involved in taste sensation? A. Facial (VII) B. Glossopharyngeal (IX) C. Vagus (X) D. Trigeminal (V) 9.D
10. Which taste sensation is stimulated by acids? A. Sweet B. Salty C. Bitter D. Sour 10.D
11. The ossicles of the middle ear include the malleus, incus, and: A. Cochlea B. Stapes C. Oval window D. Tympanic membrane 11.B
12. The function of the round window is to: A. Amplify sound vibrations B. Equalize air pressure C. Dissipate excess vibrations D. Transmit vibrations to the ossicles 12.C
13. Which structure contains the hearing receptors? A. Cochlear duct B. Scala vestibuli C. Scala tympani D. Semicircular canal 13.A
14. Hair cells that detect head rotation are located in the: A. Macula B. Otolith C. Crista ampullaris D. Organ of Corti 14.C
15. Which structure provides the sense of static equilibrium? A. Semicircular canals B. Utricle and saccule C. Cochlea D. Ampulla 15.B
16. Which photoreceptors function best in dim light? A. Cones B. Rods C. Bipolar cells D. Ganglion cells 16.B
17. The area of the retina responsible for the sharpest vision is the: A. Optic disc B. Macula lutea C. Fovea centralis D. Choroid 17.C
18. Which visual pigment is found in rods? A. Iodopsin B. Retinal C. Opsin D. Rhodopsin 18.D
19. Damage to the cochlea would most likely cause which type of hearing loss? A. Conductive deafness B. Sensorineural deafness C. Temporary hearing loss D. Pressure-related deafness 19.B
20. Loss of lens elasticity associated with aging is called: A. Myopia B. Hyperopia C. Presbyopia D. Astigmatism 20.C
Created by: amy.still
 

 



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