All the following statements regarding nerve impulse conduction are correct except:
1. Myelinated neurons have a higher conduction velocity than unmyelinated neurons.
2. Nerve impulses occur in an all-or-none manner.
3. The neuron cannot be stimulated during the depolarization phase.
4. The strength of impulses carried along a single nerve fiber can vary with the strength of their stimulus.

Subtopic:  Action Potential |
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The neurotransmitter responsible for sleep induction and mood stabilization is:
1. GABA
2. acetylcholine
3. serotonin
4. dopamine

Subtopic:  Action Potential |
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The organ converts one energy form into another would be called as:

1. effector

2. transducer

3. generator

4. receptor

Subtopic:  Nervous System |
 68%
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Sensors that provide information about joint angle, muscle length, and muscle tension, which is integrated to give information about the position of the limb in space are called as:
1. Golgi tendon organs
2. Meissner’s corpuscles
3. proprioceptors
4. nociceptors

Subtopic:  Autonomic Nervous System (OLD NCERT) |
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The sense of smell differs from other senses as it:

1. is transmitted only to cerebellum.

2. does not transmit to the cerebral cortex via the thalamus

3. is non functional in blinds

4. uses lateral inhibition

Subtopic:  Diencephalon | Cerebrum, EEG & Sleep |
 64%
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The middle ear:
1. is responsible for balancing the body.
2. is responsible for transmitting sound waves from the outer ear to the inner ear
3. contains the otolith organs
4. is a cavity in parietal bone.

Subtopic:  Outer & Middle Ear (OLD NCERT) |
 82%
From NCERT
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 A disease of the eye in which fluid pressure within the eye rises [Glaucoma] is caused by:
1. inadequate drainage of aqueous humor
2. swelling of the vitreous body
3. an excess of vitreous humor
4. bacterial inflammation of conjunctiva

Subtopic:  Basic Anatomy of Human Eye (OLD NCERT) |
 51%
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The highest visual acquity in the human eye is at:
1. optic tract
2. macula lutea
3. fovea centralis
4. optic disc

Subtopic:  Human Eye (OLD NCERT) |
 76%
From NCERT
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What is true if an object that is more than 20 feet from the eye and is clearly focused on the retina?
1. lens is most strong and refractory
2. lens is not refracting the light
3. ciliary muscle is relaxed
4. zonular fibers of the suspensory ligament are relaxed

Subtopic:  Huma Eye: Accommodation (OLD NCERT) |
 51%
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Four cavities located within the brain that contain cerebral spinal fluid are known as:

1. sinusoids 2. vesicles
3. ventricles 4. lobules
Subtopic:  Meninges, Ventricles & CSF |
 71%
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