Functionally the parasympathetic system is
inhibitory
stimulatory
both (a) and (b)
at times inhibitory and at times stimulatory
Correct Answer :
A. inhibitory
Related Questions
Balance of muscle coordination is the function of
cerebellum
medulla
pons
diencephalon
Arborvitae includes
grey matter
white matter
both (a) and (b)
none of these
Which of the cranial nerve is mixed :
Optic
Olfactory
Vagus
Trochlear
Cranial and spinal nerves constitute
CNS
autonomic nervous system
peripheral nervous system
sympathetic nervous system
Birds can move swiftly and accurately in three dimensions of space due to well developed
cerebrum
cerebellum
pons varolii
medulla oblongata
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
The nodes of Ranvier are responsible for]
saltatory conduction
speed of conduction
reflex actions
direction of propagation of impulses
The energy required for the transmission of impulse is obtained from
stimulating agent
brain
nerve fibre
synapses
The basic anatomic and physiologie unit of the nervous system is
nerves
neuron
nephron
brain
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
Spinal cord is protected by
aorta
sternum
trachea
vertebral column
Which one of the following are purely motor nerves?
Olfactory, trochlear, abducens
Trigeminal, facial, auditory
Vagus, facial, abducens
Abducens, trochlear, oculomotor
The smallest cranial nerve is
optic
olfactory
auditory
abducens
The synaptic knots are present at the terminal endings of
the neuron
the dendron
the axon
both (b) and (c)
Cerebral cortex has centres of
thinking and intelligence
memory and learning
speech articulation
all of these
In mammals the function of sympathetic nervous system is
contraction of hair muscles
contraction of pupil
stimulation of sweat glands
acceleration of heart beats
An afferent neuron is
motor
sensory
both (a) and (b)
none of these
The anterior choroid plexus is situated in the roof of
diocoel (III Ventride)
metacoel (IV Ventride)
olfactocoel
optocoel
The 8th cranial nerve of frog is
auditory
optic
olfactory
glossopharyngeal
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
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
Which one is not at reflex action ?
Obeying an order
Release of saliva seeing sweets
Perspiration due to heat
Closing of eyelids against fricking
The chemical transmitter of nerve impulses is
cholinesterase
acetyl CoA
acetylcholine
adrenaline
White matter consists of
nerve fibres with myelinated sheath
nerve fibres without myelinated sheath
scattered areolar tissue
nerve fibres with blood vessels.
The thermoregulatory centre of the body is
spinal cord
hypothalamus
cerebellum
pituitary gland
Pia mater and dura mater are referred as
hypothalamus
crura cerebri
cerebrospinal sheath
meninges
In mammals, the cerebral hemispheres are joined by
foramen magnum
corpus callosum
corpus spongiosum
corpora quadrigemina
The outermost layer of brain is
pia mater
dura mater
arachnoid
none 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