1 Cornea 6 Macula 2 Lens 7 Vitreous humor 3 Iris 8 Optic disc 4 Conjunctiva 9 Ciliary muscles 5 Sclera 10 Choroid

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1 Anatomy and Physiology Quiz 1 Sample Question Answers Use the following table to answer Questions Cornea 6 Macula 2 Lens 7 Vitreous humor 3 Iris 8 Optic disc 4 Conjunctiva 9 Ciliary muscles 5 Sclera 10 Choroid 1. Which of the structures listed above can be observed during a gross anatomical examination of the eye? a. 1, 2, 3, 4 & 5 b. 1, 3, 4 & 5 c. 1, 2, 3, 5 & 9 d. 1, 3, 5 & 10 e. 1, 2, 3, 5 & Which of the structures listed above cannot be observed by examining the crosssection of the eye? a. 4, 6 & 8 b. 3, 4, 6 & 8 c. 3, 6, 8 & 9 d. 4, 6, 8 & 9 e. 4, 6, 7 & 8 3. Of the following processes, which would be used to see a stationary object at a distance of 15 feet? a. Refraction b. Accommodation c. Pupillary light reflect d. A & B e. A, B & C 4. Which of the following retinal cell types are found between the outer and inner nuclear layers? a. Horizontal cells b. Ganglion cells c. Amacrine cells d. Photoreceptors

2 e. Bipolar cells 5. Which of the following sequences of retinal layers is organized closest to the vitreous humor to farthest from the vitreous humor? a. Outer nuclear, inner nuclear, ganglion b. Inner nuclear, outer nuclear, ganglion c. Outer nuclear, ganglion, inner nuclear d. Ganglion, inner nuclear, outer nuclear e. Inner nuclear, ganglion, outer nuclear 6. The cerebral hemispheric lobe that is most anterior has which of the following functions? A. Movement B. Audition C. Vision D. Olfaction E. Somatic sensation 7. Which of the following describes processing of visual information appearing in the right temporal hemi-field? a. Image is formed on left nasal retina; axons do not decussate; processed by left LGN layers 2, 4 & 6 b. Image is formed on right temporal retina; axons decussate; processed by left LGN layers 2, 3 & 5 c. Image is formed on right nasal retina; axons decussate; processed by left LGN 2, 3 & 5 d. Image is formed on right nasal retina; axons decussate; processed by left LGN layers 1, 4 & 6 e. Image is formed on left nasal retina; axons decussate; processed by right LGN layers 1, 4 & 6 8. In regards to LGN processing of an image appearing only in the left hemifield and activating only M-type ganglion cells, which of the following is True? a. Temporal image is processed by layer 1 of the right LGN b. Temporal image is processed by layers 4 & 6 of the right LGN c. Nasal image processed by layer 2 of the right LGN d. Nasal image is processed by layers 3 & 5 of the right LGN e. A & C 9. In regards to the basilar membrane, which of the following is NOT TRUE? a. The base is wider than the apex.

3 b The base is stiffer than the apex. c. Low frequency sound displaces the basilar membrane near its apex. d. Sound waves with the lowest energy displace the basilar membrane near its base. e. A & D 10. Which of the following is the target of the right optic radiation? a. Right lateral geniculate nucleus of the thalamus b. Left lateral geniculate nucleus of the thalamus c. Optic chiasm d. Right primary visual cortex e. Left primary visual cortex 11. Which of the following membranes is continuous with the auditory canal? a. Basilar membrane b. Tectorial membrane c. Oval window d. Tympanic membrane e. Round window 12. In the cochlea, where are the auditory receptors located? a. Scala vestibuli b. Scala tympani. c. Organ of corti d. Basilar membrane e. Helicotrema

4 13. In regards to middle ear function, which of the following is TRUE? a. Airborne sound has higher impedance than the fluid of the inner ear. b. Sound wave pressure is mechanically amplified by the auditory canal. c. The pressure at the oval window is equal to that at the round window. d. The basilar membrane provides mechanical advantage by acting as lever. e. The inner ear is continuous with the outside world via the eustachian tube 14. All of the following are mechanical events in the auditory system EXCEPT: a. Movement of K+ through channels in the stereocilia b. Movement of hair cell stereocilia against the tectorial membrane. c. Movement of the ossicles in the middle ear d. Displacement of the basilar membrane e. Movement of the fluid within the choclea 15. Injuries to all of the following would affect nociception EXCEPT: A. Dorsal root ganglion B. Cranial nerves C. Spinal nerves D. Spinal pathway E. Dorsal column 16. All of the following are characteristics of somatosensory pathways EXCEPT: A. Information detected by pacinian corpuscles does not cross until it reaches the brainstem B. The ST pathway crosses in the spinal cord and ascends to make its first synapse in the diencephalon C. Sensory information generated by activating muscle spindle fiber ascends in the dorsal column D. The primary somatic cortex is the final target of both the DCML and ST pathways E. C & D

5 Use the following table to answer Question 17. I II III IV V Spinal nerve Dorsal root ganglion Spinal pathway Dorsal column Ventral root 17. Which of the spinal cord structures listed above includes both somatic and motor elements? A. I only B. I, II C. I, III D. I, II, IV E. I, II, V

a. Match the structures with the statements that follow. 1) Cerebral cortex 2) Nerve fiber 3) Receptor 1 Projects sensation back to region where

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