14. Parkinsons disease is caused by loss of dopaminergic neurons of

14. Parkinson\'s disease is caused by loss of dopaminergic neurons of the A. Cerebellum B.
Basal ganglia (nuclei) C. Brainstem D. Primary motor cortex E. Thalamus 15. \"Dual
innervation\" refers to an organ receiving A. two nerves from the spinal cord B. both autonomic
and somatic neurons C. both sympathetic and parasympathetic neurons D. both spinal and cranial
nerves E. none of the above 16. Effector organs of the autonomic nervous system include all of
the following except A. Heart muscle. B. Smooth muscle in the pupils of the eye. C. Respiratory
muscles. D. Sweat glands. E. Salivary glands.


Solution


14 B
Parkinson\'s disease is due to decrease of level of dopamine in substantia nigra whose basal
ganglia is the part.
15 C
Dual innervation refers to the organ receiving both sympathetic and parasympathetic neurones
16 D
Sweat glands