Which of the following is consistent with Galvani's experiment ?
A) The brain contains air-filled chambers.
B) Nerves are filled with air and exert a vacuum pressure..
C) Muscles comprise the mind.
D) Electrical stimulation of a nerve can evoke contraction of a muscle, even when the nerve has been disconnected from the rest of the body.
E) The brain controls the muscles of the body.
Question 2
The significance of Galvani's experiment involving stimulation of an isolated frog muscle is that it proved that
A) fluid flow along nerves causes muscles to contract.
B) the muscles are activated by electrical nerve signals.
C) reflexes can be explained using a hydraulic model.
D) a reflex is a process controlled by the mind.
E) the mind controls the movements of the body.
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