Voluntary control over skeletal muscles originates in the
cerebellum
cerebrum
medulla oblongata
none of these
Correct Answer :
A. cerebellum
Related Questions
The chemical transmitter of nerve impulses is
cholinesterase
acetyl CoA
acetylcholine
adrenaline
Purely motor nerve is
optic
abducens
ophthalmic
palatinus
The SNS works through
acetylcholine
norepinephrine
noradrenaline
none of these
Spinal cord is a part of
CNS
SA node
AV node.
Parasympathetic nervous system
The intensity of stimulus determines the
amplitude of action potentials in the neuron
amplitude and frequency of action potentials in a neuron
frequency of action potentials in a neuron
amplitude of resting and action potentials in a neuron
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
The synaptic knots are present at the terminal endings of
the neuron
the dendron
the axon
both (b) and (c)
The anterior choroid plexus is situated in the roof of
diocoel (III Ventride)
metacoel (IV Ventride)
olfactocoel
optocoel
Pia mater and dura mater are referred as
hypothalamus
crura cerebri
cerebrospinal sheath
meninges
The second cranial nerve is
optic
trigeminal
olfactory
abducen
Birds can move swiftly and accurately in three dimensions of space due to well developed
cerebrum
cerebellum
pons varolii
medulla oblongata
The nodes of Ranvier are responsible for]
saltatory conduction
speed of conduction
reflex actions
direction of propagation of impulses
The number of spinal nerves in man is
20 pairs
31 pairs
21 pairs
35 pairs
Mammalian heart is innervated by a branch of
trigeminal
facial
vagus
spinal accessory
Arborvitae includes
grey matter
white matter
both (a) and (b)
none of these
The brain is situated in a long case called the
cranium
atrium
sinus
both (a) and (b)
Body temperature, hunger and water balance is regulated by
hypothalamus
medulla oblongata
pons
cerebellum
Foramen of Monro provides a passage connecting
brain and spinal cord
lateral ventricles with III ventride in brain
IV ventricle with optic ventride
middle ear with pharynx
An afferent neuron is
motor
sensory
both (a) and (b)
none of these
The smallest cranial nerve is
optic
olfactory
auditory
abducens
Corpus callosum of the brain connects
optic chiasma
two cerebral hemispheres
two olfactory lobes
two optic lobes
Which one of the animals has a nervous system but no brain?
Amoeba
Earthworm
Cockroach
Hydra
Synaptic fatigue is due to
release of more adrenalin
release of more acetylcholine
exhaustion of neurotransmitter
none of these
Spinal cord is protected by
aorta
sternum
trachea
vertebral column
Cerebral cortex has centres of
thinking and intelligence
memory and learning
speech articulation
all of these
Voluntary control over skeletal muscles originates in the
cerebellum
cerebrum
medulla oblongata
none of these
The energy required for the transmission of impulse is obtained from
stimulating agent
brain
nerve fibre
synapses
Sensory nerve fibres enter the spinal cord through
dorsal root
ventral root
cranial nerves
central canal
The basic anatomic and physiologie unit of the nervous system is
nerves
neuron
nephron
brain
In mammals, the cerebral hemispheres are joined by
foramen magnum
corpus callosum
corpus spongiosum
corpora quadrigemina