MBBS / BDS Medical Entrance Examination - Nervous System MCQs

# Longest Cranial Nerve is:
A. Occulomotor
B. Vagus
C. Abducent
D. Occipital

# Number of cranial nerve in rabbit is ____ pairs.
A. 9
B. 10
C. 11
D. 12

# The lobe of brain where visual stimuli are received and analysed is:
A. Frontal
B. Temporal
C. Parietal
D. Occipital

# Neurons that carry messages from receptors area to CNS are called ______ neurons.
A. Intermediate
B. Motor
C. Relay
D. Sensory

# What is the name of the gap between the end of one neuron and another ?
A. Axon
B. Dendrite
C. Fatty Sheath
D. Synapse

# The muscular coordination of mammals is controlled by:
A. Cerebrum
B. Cerebellum
C. Pons
D. Medulla Oblongata

# Center of intelligence in brain lies in:
A. Diencephalon
B. Cerebellum
C. Medulla Oblongata
D. Cerebrum

# Vagus nerve is a part of:
A. Central nervous system
B. Sympathetic nervous system
C. Parasympathetic nervous system
D. Spinal nervous system

# Reflex action is exhibited by:
A. Brain
B. Spinal cord

# Body posture is maintained by:
A. Cerebrum
B. Cerebellum
C. Medulla
D. Spinal cord

# Which of the following human parasympathetic functions is not under the control of a cranial nerve ?
A. Constriction of the pupil
B. Contraction of urinary bladder
C. Increase in salivation
D. Stimulation of Gall bladder activity

# Sodium Pump in human body is related to :
A. transport of CO2
B. Nerve impulse conduction
C. Dissociation of hemoglobin
D. Exchange of gases

# Thermoregulatory center is found in:
A. Diencephalon
B. Cerebellum
C. Hypothalamus
D. Occipital Nerve

# Which of the following nerves supply a single muscle ?
A. Optic
B. Oculomotor
C. Trochlear
D. Vestibulocochlear

# The resting membrane potential of a nerve fiber is:
A. 60 to 70 mV
B. -100 to -110 mV
C. 50 to 100 mV
D. -20 to 30 mV

# Which center is stimulated during increase in body temperature ?
A. Anterior hypothalamus
B. Limbic System
C. Posterior hypothalamus
D. Red nucleus

# The cerebral hemisphere are joined with midbrain by:
A. Foramen of Monro
B. Foramen of Magendie
C. Foramen of Luschka
D. Crura Cerebri

# Number of cranial nerves in Human is:
A. 12
B. 9 pairs
C. 12 pairs
D. 31 pairs

# Parasympathetic nervous System:
A. accelerates heart beat
B. increases sweat secretion
C. causes contraction of urinary bladder
D. increases heart rate

# Which layer of meninges forms the innnermost portion ?
A. Piamater
B. Arachnoid Mater
C. Dura Mater
D. Grey Matter

# Which of the following structure, in the evolution of vertebrate brain has shown greatest size increase relative to rest of the brain?
A. Fore Brain
B. Mid Brain
C. Hind Brain
D. Rhombencephalon

# Parkinson's Disease affects:
A. Brain
B. Lungs
C. Muscles
D. Kidney

# The innnermost layer of cranial meninges is:
A. Arachnoid mater
B. Pia mater
C. Duramater
D. Myelin Sheath

# Breathing center occurs in:
A. Hypothalamus
B. Thalamus
C. Medulla Oblongata
D. Cerebrum

# Sleep Inducing Drugs are called:
A. Hypnotics
B. Tranquillizers
C. Sedatives
D. Emetics

# Olfactory lobe is site for:
A. Smell
B. Taste
C. Vision
D. Sound

# The cerebellum is concerned with :
A. Perception
B. Coordination of muscular movement
C. Memory
D. Vision

# A ganglion of sensory neurons occurs in:
A. Dorsal horn of Spinal cord
B. Ventral root of spinal cord
C. Dorsal root of spinal cord
D. Dermis of Skin

# Which cranial nerve in man is both sensory and motor ?
A. Optic
B. Olfactory
C. Trigeminal
D. Auditory

# Hind brain consists of:
A. Optic lobe
B. Medulla oblongata and cerebellum
C. Optic lobes and medulla oblongata
D. Diencephalon and medulla oblongata

# In which of the following disorders, a patient commonly commits suicide ?
A. Anxiety
B. Obsession
C. Depression
D. Schizophrenia

# Two cerebral hemispheres of mammalian brain are connected by:
A. Corpus callosum
B. Anterior commissure
C. Posterior commissure
D. Third ventricle

# Increase in heartbeat (palpitation) that may be felt while facing an interview is primarily due to:
A. Central nervous system
B. Peripheral nervous system
C. Sympathetic nervous system
D. Parasympathetic nervous system

# Which of the following is found in diencephalons ?
A. Hypothalamus
B. Basal Ganglia
C. Cerebral Cortex
D. Olfactory lobes

# Primary visual cortex is present in:
A. Frontal lobe
B. Parietal lobe
C. Temporal lobe
D. Occipital lobe

# Hunger and thirst are under dirsct control of:
A. Hypothalamus
B. Cerebrum
C. Cerebellum
D. Epithalamus

# Which part is responsible for attention ?
A. Cerebellum
B. Medulla
C. Cerebrum
D. Midbrain

# The parasympathetic nervous system:
A. has epinephrine as neurotransmitters
B. has ganglions near the organ
C. accelerates most of the peripheral organs
D. all of the above

# CNS consists of:
A. Brain only
B. Spinal cord only
C. Brain and Spinal Cord both
D. Brain and ANS

# Which of the following do not belong together ?
A. Forebrain - Cerebral hemisphere
B. Hindbrain - Medulla
C. Diencephalon - Hypothalamus
D. Midbrain - Cerebellum

# Reasoning power is maximum in human due to the development of :
A. Cerebellum
B. Medulla
C. Cerebral Cortex
D. Cerebrum

# Reflex action in vertebrates is exhibited by:
A. Sensory nerves
B. Motor nerves
C. Sympathetic nerves
D. Autonomic response

# Gland of Swammerdam is reserve of:
A. Fats
B. Proteins
C. Carbohydrates
D. Minerals

# Sodium potassium pump or Na+ - K+ ATPase acts on the principle of:
A. Simple diffusion
B. Active transport
C. Facilitated Diffusion
D. Osmosis

# In brain there is no:
A. Insulin
B. Amino acids
C. Protein
D. Glucose

# Impulses are transmitted along cell membranes due to change in:
A. Potential difference across the membrane
B. Resistance
C. Fluid Volume
D. Plasma Concentration

# Cerebrospinal Fluid:
A. Afloats the brain
B. is blood filtrate
C. acts as a shock absorber
D. all of the above