Human body temperature is regulated by the centre located in:

1. Cerebrum                 

2. Cerebellum

3. Medulla                   

4. Hypothalamus

Subtopic:  Diencephalon |
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In the human eye, there are three types of cones – red, blue, and green. When these cones are stimulated equally, a sensation for which of the following colors would be produced?
1. White
2. Black
3. Orange
4. Yellow

Subtopic:  Human Eye: Adaptation (OLD NCERT) |
 90%
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The vomiting center in the humans is located in the:
1. Medulla oblongata
2. Pons varolii
3. Hypothalamus
4. Thalamus

Subtopic:  Hind & Mid Brain |
 87%
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Most of the neurons in the cerebral cortex are:

1. Unipolar

2. Bipolar

3. Multipolar

4. Pseudo unipolar

Subtopic:  Nervous System |
 86%
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The number of correct statements amongst the given statements is:

I. Somatic neural system relays impulses from the CNS to smooth muscles of the body.

II. Myelinated nerve fibers are found in spinal nerves but not in cranial nerves.

III. Sodium-potassium pump transports 3 sodium outwards and 2 potassium into the cell.

IV. Electrical synapses are rare in our system.

V. Efferent neurons carry signals from the CNS to the effector.

   1.  2         

   2.  3

   3.  4         

   4.  5

Subtopic:  Nervous System | Synapse |
 68%
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In the given diagram of cochlea, the tectorial membrane is represented by the letter:

                       

            1.  A                   

            2.  B

            3.  C                 

            4.  D

Subtopic:  Inner Ear: Vestibular Apparatus (OLD NCERT) |
 76%
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Mark the incorrect match?

 1.  Cerebral aqueduct  A canal passes through the midbrain, connecting 3rd ventricle to 4th ventricle of the brain.
 2.  Corpus callosum   Thick band of nerve fibres that divides the cerebral cortex lobes into left and right hemispheres.
 3.  Limbic system    The inner part of forebrain involved in the regulation of sexual behaviour.
 4.  Pons  Consist of fibre tracts that interconnect different regions of the brain.

Subtopic:  Diencephalon |
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The vestibular apparatus is composed of:

I.   Semi-circular canals

II.  Otolith organs

III. Organ of Corti

IV. Crista and macula

1.  I, II, III & IV

2.  I, II only

3.  IV only

4.  II only

Subtopic:  Inner Ear: Vestibular Apparatus (OLD NCERT) |
 66%
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'Retinal' is present in:

1.  Rods

2.  Cones

3.  Both 1 and 2

4.  All the retinal layer

Subtopic:  Human Eye: Adaptation (OLD NCERT) |
 54%
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The resting axonal membrane of a neuron:

1. is not polarized

2. has an excess of anions on the outside

3. is more permeable to potassium ions than to sodium ions

4. cannot be excited by a stimulus

Subtopic:  Action Potential |
 89%
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