Which one of the following is NOT correct? a. Receptors for smell are located just below the cribriform plate. b. The sensory neurons for smell are unipolar in shape. c. Processes of the receptor neurons pass through numerous holes in the cribriform plate. d. Air moving through the nose during normal breathing does not pass through the portion of the nasal cavity where the receptors are located. Which of the following results from a combination of retinene and scotopsin? a. Rhodopsin b. Lumirhodopsin c. Metarhodopsin d. None of the above Which one of the following is NOT correct concerning the image that falls on the retina? The image is: a. Reduced in size b. Reversed c. Right side up d. Smaller the farther away the object is from the eye If the medial surface of the occipital lobe were destroyed, one would: a. See bright colors or flashes of light b. See light but not be able to distinguish shapes c. Be totally blind d. None of the above The lateral geniculate body in the thalamus probably interprets: a. Color and depth perception b. Direction of orientation of lines and borders c. The finer meaning of the image d. Contrast in images Which of the following is NOT a true statement about the red photoreceptors? a. They contain the pigment rhodopsin b. They are functional only in dim light c. They detect even the slightest motion d. They detect fine detail e. The stimulus formed from the breakdown of rhodopsin lasts about 1/10th of a second
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Which one of the following is NOT correct? Answer: d. air moving through the nose during normal breathing does not pass through the portion of the nasal cavity where the receptors are located. Show more…
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5. Which of the following Dural Infoldings/Reflections is NOT matched up correctly with its location? A. Falx Cerebri; longitudinally between the two Cerebral Hemispheres B. Tentorium Cerebelli; forms a partial roof over the Hypophysial Fossa C. Falx Cerebelli; partially separates the Cerebellar Hemispheres D. A and B are both not matched up correctly E. B and C are both not matched up correctly 6. Which of the following statements regarding the Dural Venous Sinuses is/are true? A. They are found between the periosteal and meningeal layers of dura mater in the brain B. They receive cerebrospinal fluid (CSF) from the Subarachnoid Space via Arachnoid Granulations (villi) and venous blood from the Dural Sinus C. Unpaired sinuses are primarily located in the superior portion of the brain, while paired sinuses are primarily located in the inferior portion of the brain D. A and B are true regarding the Dural/Venous Sinuses E. A and C are true regarding the Dural/Venous Sinuses 7. Which of the following cerebral structures listed below connects the cortex of different parts in the same hemisphere? A. Communication Fibers B. Commissural Fibers C. Association Fibers D. Purkinje Fibers E. Projection Fibers 8. What is the function of Basal Nuclei (Ganglia)? A. Relay center for all sensory input into the Cerebral Cortex B. Major role in arousal, learning, memory, and motor control C. Relay information from Cerebellum to Cerebrum D. Controls movement in conjunction with Motor Cortex E. Function unclear; integrate information between Cerebral Cortex and Limbic System 9. The Superior Colliculi are part of the Corpus Quadrigemina and play a role in auditory reflexes. A. True B. False
Sri K.
6. The information you receive from each eye is communicated through the optic nerve to the brain. Which of the following statements correctly describes how the visual field is perceived? A. The visual field from the right eye crosses the optic chiasm to the right side of the brain. B. The right visual fields from both eyes are processed on the right side of the cerebrum. C. The left visual fields from both eyes are processed on the right side of the cerebrum. D. The visual field from the left eye crosses the optic chiasm to the right side of the brain. 7. All primates have two eyes that face forward. This includes humans. Having two eyes is an evolutionary advantage and provides binocular vision, which means that two eyes are involved in the visual process. One of the advantages of having two eyes is the ability to perceive depth. Depth perception is achieved by A. analyzing the differences in the images falling on the left and right eyes B. the optic chiasm C. allowing light rays to converge and project an upside down image on the retina D. changing the shape of the lens to accommodate the distance of an object 8. Hyperopia is a condition in which the eye cannot view close objects clearly. Many newborns have hyperopia. Compared to older adults, the lenses of a newborn baby are very light and flexible. Hyperopia in newborn babies is caused by A. uneven curvature of the cornea B. weak ciliary muscles that do not pull adequately on the lens C. the inability of the iris to adjust to changing light conditions D. loss of lens flexibility
Madhur L.
A sudden rise in room brightness would cause: A. contraction of the sphincter pupillary muscles. B. a decrease in the size of the pupil. C. conversion of 11-trans to 11-cis retinal. D. contraction of the radial pupillary muscles. E. all of the above. 2. If an individual's eyeball is too long, front-to-back axis, the individual will present with which condition? A. Presbyopia B. Myopia C. Hyperopia D. Emmetropia E. Cataract 3. A labeled line is: A. a link between a receptor and a cortical neuron. B. a reduction in sensitivity. C. an adjustment for sensitivity adaptation. D. a translation of complex sensory information. E. a stimulation that produces action potentials. 4. All of the following are true of a prickling pain sensation, except that they: A. are fast adapting. B. receive conscious attention. C. often trigger somatic reflexes. D. are carried by type A fibers. E. reach the CNS quickly. 5. Examples of sensory modalities include: A. vibration. B. touch. C. smell. D. warmth. E. all of the above. 6. The receptor potential is the: A. membrane potential produced when a neurotransmitter molecule binds to its receptor. B. membrane potential produced at a muscle cell. C. electrical signal produced by an action potential. D. membrane potential produced in the receptor cell by sensory transduction.
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