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
Correct Answer :
B. Nervous tissue
Related Questions
The second cranial nerve is
optic
trigeminal
olfactory
abducen
The smallest cranial nerve is
optic
olfactory
auditory
abducens
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
Voluntary control over skeletal muscles originates in the
cerebellum
cerebrum
medulla oblongata
none of these
The anterior choroid plexus is situated in the roof of
diocoel (III Ventride)
metacoel (IV Ventride)
olfactocoel
optocoel
The thermoregulatory centre of the body is
spinal cord
hypothalamus
cerebellum
pituitary gland
The chemical transmitter of nerve impulses is
cholinesterase
acetyl CoA
acetylcholine
adrenaline
All or none law of nerve impulse conduction states that
an impulse will continue to be conducted until the stimulus is removed
an impulse will be generated if the stimulus is of a particular strength, below which there won't be any response and increase above the minimal does not produce any enhanced effect
the brain receives the complete information or does not receive at all
none of these
Body temperature, hunger and water balance is regulated by
hypothalamus
medulla oblongata
pons
cerebellum
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
In mammals, the cerebral hemispheres are joined by
foramen magnum
corpus callosum
corpus spongiosum
corpora quadrigemina
The 8th cranial nerve of frog is
auditory
optic
olfactory
glossopharyngeal
Spinal cord is a part of
CNS
SA node
AV node.
Parasympathetic nervous system
The basic anatomic and physiologie unit of the nervous system is
nerves
neuron
nephron
brain
Corpus callosum of the brain connects
optic chiasma
two cerebral hemispheres
two olfactory lobes
two optic lobes
The SNS works through
acetylcholine
norepinephrine
noradrenaline
none of these
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 outermost layer of brain is
pia mater
dura mater
arachnoid
none of these
The largest cranial nerve is
optic
facial
vagus
mandibular
Purely motor nerve is
optic
abducens
ophthalmic
palatinus
Spinal cord is protected by
aorta
sternum
trachea
vertebral column
Which one is not at reflex action ?
Obeying an order
Release of saliva seeing sweets
Perspiration due to heat
Closing of eyelids against fricking
In mammals the function of sympathetic nervous system is
contraction of hair muscles
contraction of pupil
stimulation of sweat glands
acceleration of heart beats
Sensory nerve fibres enter the spinal cord through
dorsal root
ventral root
cranial nerves
central canal
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
Which one of the animals has a nervous system but no brain?
Amoeba
Earthworm
Cockroach
Hydra
White matter consists of
nerve fibres with myelinated sheath
nerve fibres without myelinated sheath
scattered areolar tissue
nerve fibres with blood vessels.
The number of spinal nerves in man is
20 pairs
31 pairs
21 pairs
35 pairs
The synaptic knots are present at the terminal endings of
the neuron
the dendron
the axon
both (b) and (c)