Cerebral cortex has centres of
thinking and intelligence
memory and learning
speech articulation
all of these
Correct Answer :
D. all of these
Related Questions
The nodes of Ranvier are responsible for]
saltatory conduction
speed of conduction
reflex actions
direction of propagation of impulses
Birds can move swiftly and accurately in three dimensions of space due to well developed
cerebrum
cerebellum
pons varolii
medulla oblongata
Arborvitae includes
grey matter
white matter
both (a) and (b)
none of these
The synaptic knots are present at the terminal endings of
the neuron
the dendron
the axon
both (b) and (c)
Pia mater and dura mater are referred as
hypothalamus
crura cerebri
cerebrospinal sheath
meninges
The anterior choroid plexus is situated in the roof of
diocoel (III Ventride)
metacoel (IV Ventride)
olfactocoel
optocoel
Spinal cord is a part of
CNS
SA node
AV node.
Parasympathetic nervous system
In mammals, the cerebral hemispheres are joined by
foramen magnum
corpus callosum
corpus spongiosum
corpora quadrigemina
Which one of the following are purely motor nerves?
Olfactory, trochlear, abducens
Trigeminal, facial, auditory
Vagus, facial, abducens
Abducens, trochlear, oculomotor
The second cranial nerve is
optic
trigeminal
olfactory
abducen
Cerebral cortex has centres of
thinking and intelligence
memory and learning
speech articulation
all of these
The largest number of cell bodies of] neurons in our body is found in
white matter of spinal cord
white matter of brain
grey matter of brain
grey matter of spinal cord
Mammalian heart is innervated by a branch of
trigeminal
facial
vagus
spinal accessory
Nerve impulse is
carried by afferent and efferent branches
not carried by afferent and efferent branches
carried away and brought by efferent branches
brought by afferent and carried by efferent branches
Synaptic fatigue is due to
release of more adrenalin
release of more acetylcholine
exhaustion of neurotransmitter
none of these
The energy required for the transmission of impulse is obtained from
stimulating agent
brain
nerve fibre
synapses
The brain is situated in a long case called the
cranium
atrium
sinus
both (a) and (b)
The largest cranial nerve is
optic
facial
vagus
mandibular
Which one of the animals has a nervous system but no brain?
Amoeba
Earthworm
Cockroach
Hydra
Foramen of Monro is
gap in pelvic girdle of rabbit
foramen in the skull of frog
space in brain of frog and rabbit
pore in the interauricular septum in a mammalian heart
Which of the cranial nerve is mixed :
Optic
Olfactory
Vagus
Trochlear
Functionally the parasympathetic system is
inhibitory
stimulatory
both (a) and (b)
at times inhibitory and at times stimulatory
In mammals the function of sympathetic nervous system is
contraction of hair muscles
contraction of pupil
stimulation of sweat glands
acceleration of heart beats
Spinal cord is protected by
aorta
sternum
trachea
vertebral column
Purely motor nerve is
optic
abducens
ophthalmic
palatinus
In frog purely sensory nerves are
I and II
II and III
I and III
III and IV
The smallest cranial nerve is
optic
olfactory
auditory
abducens
Body temperature, hunger and water balance is regulated by
hypothalamus
medulla oblongata
pons
cerebellum
The outermost layer of brain is
pia mater
dura mater
arachnoid
none of these
Which one is not at reflex action ?
Obeying an order
Release of saliva seeing sweets
Perspiration due to heat
Closing of eyelids against fricking