The thermoregulatory centre of the body is
spinal cord
hypothalamus
cerebellum
pituitary gland
Correct Answer :
B. hypothalamus
Related Questions
An afferent neuron is
motor
sensory
both (a) and (b)
none of these
The brain is situated in a long case called the
cranium
atrium
sinus
both (a) and (b)
Balance of muscle coordination is the function of
cerebellum
medulla
pons
diencephalon
Birds can move swiftly and accurately in three dimensions of space due to well developed
cerebrum
cerebellum
pons varolii
medulla oblongata
In mammals the function of sympathetic nervous system is
contraction of hair muscles
contraction of pupil
stimulation of sweat glands
acceleration of heart beats
The chemical transmitter of nerve impulses is
cholinesterase
acetyl CoA
acetylcholine
adrenaline
The outermost layer of brain is
pia mater
dura mater
arachnoid
none of these
In frog purely sensory nerves are
I and II
II and III
I and III
III and IV
Voluntary control over skeletal muscles originates in the
cerebellum
cerebrum
medulla oblongata
none of these
The nodes of Ranvier are responsible for]
saltatory conduction
speed of conduction
reflex actions
direction of propagation of impulses
The thermoregulatory centre of the body is
spinal cord
hypothalamus
cerebellum
pituitary gland
The synaptic knots are present at the terminal endings of
the neuron
the dendron
the axon
both (b) and (c)
Which one is not at reflex action ?
Obeying an order
Release of saliva seeing sweets
Perspiration due to heat
Closing of eyelids against fricking
Synaptic fatigue is due to
release of more adrenalin
release of more acetylcholine
exhaustion of neurotransmitter
none of these
Which one of the animals has a nervous system but no brain?
Amoeba
Earthworm
Cockroach
Hydra
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
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
The anterior choroid plexus is situated in the roof of
diocoel (III Ventride)
metacoel (IV Ventride)
olfactocoel
optocoel
In mammals, the cerebral hemispheres are joined by
foramen magnum
corpus callosum
corpus spongiosum
corpora quadrigemina
The basic anatomic and physiologie unit of the nervous system is
nerves
neuron
nephron
brain
Mammalian heart is innervated by a branch of
trigeminal
facial
vagus
spinal accessory
Functionally the parasympathetic system is
inhibitory
stimulatory
both (a) and (b)
at times inhibitory and at times stimulatory
Which of the following tissues in a human being uses the greatest amount of energy per unit weight ?
Heart tissue
Nervous tissue
Muscle tissue
Epithelial tissue
Which one of the following are purely motor nerves?
Olfactory, trochlear, abducens
Trigeminal, facial, auditory
Vagus, facial, abducens
Abducens, trochlear, oculomotor
Cranial and spinal nerves constitute
CNS
autonomic nervous system
peripheral nervous system
sympathetic nervous system
The smallest cranial nerve is
optic
olfactory
auditory
abducens
Stimulation of sympathetic nerve of heart accelerates the heart beats as a result of
release of acetylcholin
release of adrenalin
release of heparin
inhibition of cholinesterase
Arborvitae includes
grey matter
white matter
both (a) and (b)
none of these
The autonomic nervous system controls
muscle contractions
reflex movement and equilibrium
activity of visceral organs
both (a) and (b)
Which of the cranial nerve is mixed :
Optic
Olfactory
Vagus
Trochlear