Which is the smallest cranial nerve that innervates the superior oblique muscles of the eye?
1. trochlear
2. abducens
3. oculomotor
4. optic

Subtopic:  Basic Anatomy of Human Eye (OLD NCERT) |
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Which of the following is not true regarding parasympathetic system?
1. Preganglionic fibers arise from the thoracic and lumbar regions of the spinal cord.
2. Terminal ganglia are located close to effector organs.
3. Preganglionic fibers are myelinated; postganglionic fibers are not.
4. Parasympathetic postganglionic fibers secrete acetylcholine.

Subtopic:  Autonomic Nervous System (OLD NCERT) |
 51%
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The reflex arc ends at:
1. sensory neuron
2. motor neuron
3. effector
4. receptor

Subtopic:  Motor Functions of Spinal Cord |
 75%
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A duct within the mesencephalon, contains cerebrospinal fluid (CSF), and connects the third ventricle to the fourth ventricle is called:

1. interventricular foramen 2. cerebral aqueduct
3. foramen of Monro 4. foramen of Magendie
Subtopic:  Meninges, Ventricles & CSF |
 76%
From NCERT
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A catecholamine is released as a neurotransmitter by:
1. preganglionic sympathetic fibers
2. postganglionic sympathetic fibers
3. preganglionic parasympathetic fibers
4. postganglionic parasympathetic fibers

Subtopic:  Autonomic Nervous System (OLD NCERT) |
 53%
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Catecholamines like adrenaline and noradrenaline are derived from the amino acid:
1. glycine
2. tyrosine
3. tryptophan
4. glutamic acid

Subtopic:  Synapse |
 66%
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Cocaine acts by interfering the reuptake of dopamine. Thus, cocaine is a:
1. sympathetic agonist
2. sympathetic antagonist
3. sympathetic neurotransmitter
4. parasympathetic agonist

Subtopic:  Synapse |
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ANS is most directly under the control of:

1. medulla oblongata

2. cerebrum

3. cerebellum

4. hypothalamus

Subtopic:  Hind & Mid Brain |
 54%
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The neurotransmitter released by postganglionic parasympathetic neurons is:
1. acetylcholine
2. norepinephrine
3. epinephrine
4. dopamine

Subtopic:  Synapse |
 69%
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Parkinson disease, caused by lack of dopamine in substantia nigra, is not characterized by:
1. Tremor
2. Rigidity
3. Hypokinesia
4. Flaccid paralysis

Subtopic:  Synapse |
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