Which of the following types of cells are found in retina ?

1. Neuroglial cell 

3. Schwann cell 

4. Amacrine cell

5. Purkinje cell

Subtopic:  Basic Anatomy of Human Eye: 1 (OLD NCERT) | Basic Anatomy of Human Eye (OLD NCERT) |
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Which of the following minerals reduces the excitability of nerves and muscles?

1. Potassium

2. Sodium

3. Magnesium

4. Manganese

Subtopic:  Action Potential |
 53%
From NCERT
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Which of the following is a psychosomatic disorder?

1. Psychosis

2. Neurosis

3. Hypochondria

4. Schizophrenia

Subtopic:  Hind & Mid Brain | Diencephalon |
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A frog has its brain crushed. But when pinched on the leg. The leg draws away. It is an

example of

1. neurotransmitter induced responsce

2. simple reflex

3. conditioned reflex

4. automated motor response.

Subtopic:  Motor Functions of Spinal Cord |
AIIMS - 2001
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Which of the following pesticides is an acetylcholinesterase inhibitor?

1. Aldrin

2. BHC

3. Endosulfan

4. Malathion

Subtopic:  Synapse |
AIIMS - 2001
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Identify the correct statement

1. In amniotes last nerve is spinal accessory.

2. In non-amniotes last nerve is vagus.

3. Optic is shortest nerve.

4. Olfactory nerves has mixed fibres.

AIIMS - 2001
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A person is wearing spectacles with concave lenses for correcting vision. While not using

the glasses, the image of a distant object in his case will be formed.

1. on the blind spot

2. behind the retina

3. in front of the retina

4. on the yellow spot.

Subtopic:  Huma Eye: Accommodation (OLD NCERT) |
 61%
AIIMS - 2003
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Unidirectional transmission of a nerve impulse through nerve fibre is due to the fact that 

1. nerve fibre is insulated by a medullary sheath 

2. sodium pump starts operating only at the cyton and then continues into the nerve fibre

3. neurotransmitters are relesed by dendrites and not by axon endings 

4. neurotransmitters are released by the axon endings and not by dendrites. 

Subtopic:  Synapse |
 69%
AIIMS - 2004
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Given below is a table comparing the effects of sympathetic and parasympathetic nervous system for four feature (a-d). Which one feature is correctly described?

Subtopic:  Autonomic Nervous System: 1 (OLD NCERT) | Autonomic Nervous System: 2 (OLD NCERT) | Autonomic Nervous System (OLD NCERT) |
 67%
AIIMS - 2006
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The black pigment in the eye which reduces the internal reflection is located in

(a) retina

(c) cornea

(b) iris

(d) sclerotic.

Subtopic:  Basic Anatomy of Human Eye: 1 (OLD NCERT) | Basic Anatomy of Human Eye (OLD NCERT) |
AIIMS - 2007
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