2. BIOL 2401
Cody Mon Exam 4 - chapters 11, 12 & Exam Prep 4
Questions and Answers 2026 Latest Update
cerebrum Ans: higher brain functions
Diencephalon Ans: homeostatic control
spinal cord Ans: information superhighway
cerebellum Ans: movement control
the hypothalamus is part of the Ans: diencephalon
what is a gyrus Ans: an elevated ridge or hill
The primary motor cortex is located in the ______ lobe, and the
primary visual cortex is located in the ______ lobe. Ans: frontal;
occipital
the role of CSF is to do which of the following Ans: to provide
neutral buoyancy to the CNS
Which of the following represent the organization of cells in a
simple reflex arc? Ans: receptor → interneuron → efferent neuron
Nociceptors detect change in ________. Ans: pain
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, Which cutaneous receptor would most likely detect the feeling of a
vibrating guitar string? Ans: Meissner's corpuscles
meissner Ans: light touch
ruffini Ans: stretch
merkel discs Ans: pressure texture
pacinian corpuscles Ans: vibration pressure
rapidly adapting, large receptive field Ans: pacinian corpuscles
slow adapting, small receptive field Ans: merkel discs
slow to rapid adaptation rate Ans: free nerve ending
rapidly adapting Ans: meissner corpuscle
which type of pain can be referred pain Ans: visceral
Select the answer that best describes why some sensory cells
undergo adaptation. Ans: Sensory cells adapt because their ability
to produce action potentials is limited.
Two-point discrimination is ______________ on the lips than on the
knee. One reason for this is that there is ______________
representation of the lips on the primary sensory cortex. Ans:
better; more
What is the pathway by which pain receptors send information to
the brain? Ans: receptor cell → interneuron (spinal cord) → lateral
spinothalamic tract → thalamus → primary sensory cortex
A ______ motor unit will innervate ______ muscle fibers. Ans: large;
many
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