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Neurobiology Chapter 12 Test Bank questions & answers.
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Neurobiology Chapter 12 Test Bankquestions & answers.
Identify a type of hairless skin.
A. Glabrous
B. Epidermis
C. Dermis
D. Follicles ANS -Glabrous
Which of the following has large receptive fields covering an entire finger or half of the palm? Choose
the correct option.
A. Merkel's disks
B. Pacinian corpuscles
C. Meissner's corpuscles
D. Krause end bulbs ANS -Pacinian corpuscles
What are mechanoreceptors?
A. Sensitive to high frequency vibrations
B. Sensitive to smooth, mechanical surfaces
C. Sensitive to physical distortion
D. Sensitive to mechanical movements ANS -Sensitive to physical distortion
What is meant by the notion "the output of the cortex can influence the input of the cortex"?
A. Neurons of the thalamus and dorsal column are controlled by the cortex
B. Information is transferred unchanged through the brain stem and the thalamus
C. Information synapses at the thalamus before proceeding to the neocortex
D. Somatic sensory system of a side of the brain is related to the other side of the body ANS -Neurons of
the thalamus and dorsal column are controlled by the cortex
, What is two-point discrimination?
A. The average distance between two points that can be differentiated by the somatic sensory system
B. The greatest distance between two points that can be differentiated by the somatic sensory system
C. The smallest distance between two points that can be differentiated by the somatic sensory system
D. The distance between two points that cannot be differentiated by the somatic sensory system ANS -
The smallest distance between two points that can be differentiated by the somatic sensory system
Identify the disorder that causes inability to recognize common objects by feeling them even though
they can be recognized by sight or sound.
A. Astereognosia
B. Agnosia
C. Analgesia
D. Anosmia ANS -Astereognosia
Primary sensory afferent axons have widely varying diameters and their size correlates with the type of
receptor to which they are attached. Which of these axons are the smallest and the slowest?
A. Proprioceptors of the skeletal muscles
B. Mechanoreceptors of the skin
C. Pain and temperature
D. Temperature, pain, and itch ANS -Temperature, pain, and itch
What type of information does the dorsal column-medial lemniscal pathway carry?
A. Pain and temperature
B. Touch and temperature
C. Pain and proprioception
D. Touch and proprioception ANS -Touch and proprioception
At what point do the axons of the dorsal column-medial lemniscal pathway cross to the opposite side of
the CNS?
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