1. Body coordination is maintained by
a)circulatory system
b)nervous system
c)endocrine system
d)both (b) and (c)
Answer
Ans.(d)
2. Which of the following is structural and functional unit of nervous system?
a)Axon
b)Neuron
c)Osteocyte
d)Neuroglia
Answer
Ans.(b)
3. Which of the following part of a neuron is covered by fattysheath?
a)Axon
b)Cyton
c)Dendrite
d)Node of Ranivier
Answer
Ans.(a)
4. Which matter is composed of
a)Nerve cells
b)ependymal
c)NERVE FIBRES
d)None of these
Answer
Ans.(c)
5. Myelin of the nerve fibres of the central nervous system is produced and maintained by
a)Astrocytes
b)Microglia
c)Schwann cells
d)Oligodendrocytes
Answer
Ans.(c)
6. In the resting state of the neural membrane,diffustion due to concentration gradients,if allowed would drive:
a)K + into the cell
b)Na + into the cell
c)Na + out of the cell
d)K +and Na +out of the cell
Answer
Ans.(b)
7. In medullated nerve fibre ,the conduction of impulse is faster due to the presence of
a)Pericytes
b)Nissls granules
c)endoneurium and epineurium
d)myelin sheath and node of Ranivier
Answer
Ans.(d)
8. The electrical potential difference between outside and inside of a nerve axon before excitation is known as
a)Resting potential
b)Action potential
c)Spike potential
d)Reaction potential
e)Activation potential
Answer
Ans.(a)
9. Chemicals which are released at the synaptic junction are called.
a) Lymp
b) Hormones
c) Neurotransmitters
d) Cerebrospinal fluid
Answer
Ans.(c)
10.The neurotransmitter produced at the synapse and neuromuscular junction is
a)GTP
b)ATP
c)Phosphokinase
d)Acetylcholine
Answer
Ans.(d)
11.Which of the following does not act as a neurotransmitter?
a)Tyrosine
b)Epinephrine
c)Acetylcholine
d)Glutamic acid
Answer
Ans.(a)
12. Adrenaline is equivalent to which neurotransmitter?
a) GABA
b) Serotonin
c) Epinephrine
d ) Norepinehrine
Answer
Ans.(c)
13.Which one isnot a neurotransmitter?
a)Thyroxine
b)GABA
C)Acetylcholine
d)Norepinephrine
Answer
Ans.(a)
14. Membrane covering the brain and spinal cord is called:
a)meninx
b)Grey matter
c)inner meninx
d)Middle meninx
Answer
Ans.(a)
15. Arachnoid matter is:
a)neurilemmal
b)outer meninx
c)inner meninx
d)Middle meninx.
Answer
Ans.(d)
16. Cerebrospinal fluid is present:
a)between piameter and arachnoid mater
b)between the duramater and cranium
c)Between arachnoid and duramater
d)beneath the piamater
Answer
Ans.(a)
17. The supporting and nutritive cells found in the brain are:
a)Microglia
b)Astrocytes
c)ependymal cells
d)oligodendrocytes
Answer
Ans.(c)
18. Corpus callosum is found in the brain of :
a)Frog
b)pigeon
c)elephant
d)crocodile
Answer
Ans.(c)
19) Which part of brain controls intellectual ability?
a)Frontal lobe
b)Parietal lobe
c)Temporal lobe
d)Occipital lobe
Answer
Ans.(a)
20) Which of the following structures is a part of diencephalon?
a)Basal ganglia
b)Olfactory bulb
c)Hypothalamus
d)Cerebral cortex
Answer
Ans.(c)
21. In which part of the brain corpora quadrigemina is located?
a)Diencephalon
b)Mesencephalon
c)Prosencephalon
d)Rhombencephalon
Answer
Ans.(b)
22. Occipital lobe is connected with:
a)Smell
b)Vision
c)Speech
d)Sensory area
Answer
Ans.(b)
23.Vomiting centre is located in the
a)Stomach an d some times in duodenum
b)Gastro-intestinal tract
c)Medula oblongata
d)Hypothalamus.
Answer
Ans.(c)
24.Which part of human brain is concerned with the regulation of body temperature?
a)Medula oblongata
b)Hypothalamus
c)Cererbrum
d)Cerebellum
Answer
Ans.(b)
25. Hypothalmus of the brain is not involved in this function.
a)Sleep –wake cycle
b)Temperature control
c)Osmoregulation and thirst
d)Accuracy pf muscular movement
Answer
Ans.(d)
26.Which part of the brain is involved in loss of control when person drinks alcohol?
a)Thalamus
b)cerebrum
c)Pons varolii
d)Cerebellum
e)Medulla oblongata
Answer
Ans.(d)
27. During course of evolution which part of the brain has shown maximum increase in size?
a)Mid brain
b)Fore brain
c)Hind brain
d)All of these
Answer
Ans.(b)
28. Pons ,cerebellum and medulla together constitute:
a)Hind brain
b)Mid brain
c)Fore brain
d)Telencephalon
e)Cerebral hemispheres
Answer
Ans.(a)
29.Human hind brain comprises three parts,one of which is :
a)spinal cord
b)cerebellum
c)Hypothalamus
d)corpus callosum
Answer
Ans.(b)
30.Integration of the visual,tactile and auditory inputs occurs in the
a)Midbrain
b)limbic system
c)Corpus callosum
d)Medulla oblongata
e)Peripheral nervous system
Answer
Ans.(a)
31.The part of the brain where the centre for hunger and thirst located is
a)cerebrum
b)Cerebellum
c)Hypothalamus
d)Medulla oblongata
Answer
Ans.(c)
32.Comprehension of spoken and written words takes place in the region of :
a) Association area
b) Motor area
c) Wernickes area
d) Brocas area
Answer
Ans.(c)
33.All sensory path ways to the cerebral cortex synapse at the:
a)Pons
b)thalamus
b)cerebellum
d)hypothalamus
Answer
Ans.(a)
34.The part of human hind brain that is responsible for hand- eye coordination is :
a)thalamus
b)Cerebellum
c)pons varolii
d)medulla oblongata
Answer
Ans.(b)
35.The nerve centres which control the body temperature and the urge for eating are contained in :
a)Pons
b)Thalamus
c)Cerebellum
d)Hypothalamus
Answer
Ans.(d)
36.Which function will be lost due to damage of occipital lobe?
a)Hearing
b)Speech
c)Vision
d)Memory
Answer
Ans.(c)
37. Signal nerves are usually
a)mixed
b)Sensory
c)Afferent
d)efferent
Answer
Ans.(a)
38.Which is the largest bone in middle ear?
a)Incus
b)Malleus
c)Stapes
d)Cochlea
Answer
Ans.(b)
39.Reflex action is controlled by
a)Spinal cord
b)autonomic nervous system
c)peripheral nervous system
d)sympathetic nervous system.
Answer
Ans.(a)
40.Which of the following is not involved in knee –jerk reflex?
a)Brain
b) inter neurons
c)Motor neurons
d)Muscle spindle
Answer
Ans.(a)
41.Afferent nerve fibres conduct impulse from
a)CNS to receptor
b)CNS to effector
c)Receptor to CNS
d)Effector to receptor
Answer
Ans.(c)
42.The autonomic nervous system has control over:
a)Reflex action
b)Sense organs
c)internal organs
d)Skeletal muscles
e.Central nervous system.
Answer
Ans.(c)
43.The function of our visceral organs is controlled by
a)Sympathetic and parasympathetic neural system
b)Sympathetic and somatic neural system
c)Central and somatic nervous system
d)None of the above
Answer
Ans.(a)
44.Sensory neurons of retina of eye are :
a)Pacinian and Ruffinis corpuscles
b)Maculae and cristae
c)Rods and cones
d)All of the above
Answer
Ans.(c)
45.The inner most layer of the human eye is
a)choroid
b)cornea
c)sclera
d)retina
e)lens
Answer
Ans.(d)
46.Rods are sensitive to
a)Dim light
b)High intensity light
c)colour perception
d) All of these
Answer
Ans.(a)
47.The purplish red pigment rhodopsin contained in the rod type photoreceptor cells of the human eye is a derivative of
a)Vitamin A
b)Vitamic B1
C)Vitamin C
d)Vitamin D
Answer
Ans.(a)
48.The part of internal ear responsible for hearing is
a)Cochlea
b)Utriculus
c)Sacculus
d)Semicircular canal
Answer
Ans.(a)
49.Which part of the human ear plays no role in hearing as such but is otherwise very much required?
a)Ear ossicles
b)Organ of corti
c)Eustachian tube
d)Vestibular apparatus
Answer
Ans.(d)
50.Organ of corti helps in
a)Maintaining equilibrium
b)Formation of wax
c)Hearing
d)All of these
Answer
Ans.(c)
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