Q. No.The neurotransmitter released by postganglionic parasympathetic neurons is:
1. acetylcholine
2. norepinephrine
3. epinephrine
4. dopamine
1. acetylcholine
2. norepinephrine
3. epinephrine
4. dopamine
Parkinson disease, caused by lack of dopamine in substantia nigra, is not characterized by:
1. Tremor
2. Rigidity
3. Hypokinesia
4. Flaccid paralysis
Very fast correction during the ongoing rapid muscular activity initiated elsewhere is done by:
| 1. | Primary motor cortex | 2. | Wernicke’s area |
| 3. | Basal ganglia | 4. | Cerebellum |
Light skin touch is sensed by _____ receptors.
1. Pacinian
2. Meissner
3. free nerve endings
4. nociceptor
When a patient is given an analgesic his pain:
1. increases
2. decreases
3. remains unaltered
4. first increases than decreases
What type of neurons is found in the olfactory membrane?
1. pseudo-unipolar
2. multipolar
3. unipolar
4. bipolar
The ear ossicle, stapes, transmits vibrations from incus to the:
1. malleus
2. tympanic membrane
3. oval window
4. round window
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In the internal ear, the membranous labyrinth is filled with:
1. cerebrospinal fluid
2. plasma
3. endolymph
4. perilymph
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Reissner's membrane is a thin membrane that separates the scala media from the:
1. oval window
2. scalavestibuli
3. scala tympani
4. round window
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The primary auditory area is located in:
1. medial geniculate body of thalamus
2. midbrain
3. temporal lobe
4. medulla oblongata
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