A change in the genetic composition of a population over time is called ________.
A. adaptation
B. evolution
C. natural selection
D. mutation
E. selection pressure
Answer: B
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Activity of neurons in the spinothalamic pathway may still send signals even if the first order sensory receptor does not receive a signal such as in amputation. This situation might cause
A) referred pain. B) phantom limb pain. C) pain adaptation. D) paresthesia. E) anesthesia.
The spinal tract that relays information concerning crude touch and pressure to the CNS is the
A) gracile fasciculus. B) cuneate fasciculus. C) posterior spinocerebellar. D) lateral spinothalamic. E) anterior spinothalamic.
The vertebrae are not portions of the axial skeleton
Indicate whether the statement is true or false
A ________ is an accumulation of excess scar tissue caused by collagen formation during healing.
Fill in the blank(s) with the appropriate word(s).