Professor Romero discovered that the overhead projector in her classroom had a short in the wiring system. When she touched the metal edge of the projector, she got an electric shock and instantly jerked her hand back. This instantaneous reaction is an example of:
A)aphasia.
B)hemispheric specialization.
C)the brain's structural plasticity.
D)a spinal reflex.

Question

Quizplus · Accepted Answer

The instantaneous reaction of jerking her hand back is an example of a spinal reflex. Spinal reflexes are automatic responses controlled by the spinal cord without the need for input from the brain. In this case, the shock triggered a reflex response in the spinal cord causing the muscle contraction to pull the hand back.

Professor Romero Discovered That the Overhead Projector in Her Classroom