Author Question: A key contribution of Hermann von Helmholtz to the study of neuron function was A) a mathematical ... (Read 51 times)

audragclark · **on:** Jun 22, 2018

A key contribution of Hermann von Helmholtz to the study of neuron function was

A) a mathematical formula to describe the conservation of energy.
B) a theory of black-white vision.
C) his invention of the ophthalmoscope.
D) measuring the conduction speed through nerves of the action potential.
E) his creation of the ablation method.

Question 2

Electrical stimulation of the ________ in dogs was shown by Fritsch and Hitzig in 1870 to result in ________.

A) pineal gland; contraction of the facial muscles
B) parietal cortex; the sensation of high frequency sound
C) corpus callosum; paralysis of both hind legs
D) primary motor cortex; muscle contraction on the opposite side of the body
E) left globus pallidus; atrophy of muscles on the right side of the body

Perkypinki · **Reply #1 on:** Jun 22, 2018

Answer to Question 1

Answer: D
Rationale: A key contribution of Hermann von Helmholtz to the study of neuron function was his measurement of the conduction speed through nerves of the action potential.

Answer to Question 2

Answer: D