CBSE Questions for Class 11 Medical Biology Neural Control And Coordination Quiz 4 - MCQExams.com

Malleus is a part of
  • Fore limbs of vertebrates
  • Reproductive organs of cockroach
  • Auditory ossicles of middle ear of rabbit
  • Skull of frog
Neurons that carry information to an effector are called as ................. neurons.
  • Motor
  • Involuntary
  • Receptor
  • Voluntary
Which of the following statement(s) is(are) correct statement(s) with respect to motor neurons?
I. They are multipolar.
II. They are unipolar
III. They carry messages from CNS (Central Nervous System) to muscle fibres or glands
IV. They carry messages from sensory receptors to CNS..
  • I only.
  • II only.
  • I and III only.
  • I and IV only.
The role of the axon is to
  • Integrate signals from the dendrites
  • Release neurotransmitter
  • Conduct the impulse to the synaptic terminal
  • Synthesize cellular components
Autonomic nervous system controls
  • Reflex action
  • Sense organs
  • Internal organs
  • Skeletal muscle
Function of sympathetic system is to
  • Decrease heart beat
  • Increase heart beat
  • Contract respiratory organ
  • Secrete saliva
Statements (A, B, C, D) in List I have to be matched with statements (p, q, r, s) in List II.
List IList II
ACytonp The body of the nerve cell that contains the organelles.
BDendriteqReceives the stimuli sent from another nerve or the outside environment.
CAxonrA fatty substance that covers the axon of the nerve cell and speeds.
DMyelin sheathsThe long, thin section of the nerve cell where the impulse is transmitted across.
  • A- p, B- q, C- s, D- r
  • A- r, B- q, C- s, D- p
  • A- r, B- s, C- q, D- p
  • A- r, B- s, C- p, D- q
The nervous tissue, which contains densely packed cells are called as
  • Neurons
  • Nissl's granules
  • Dendrons
  • Axon
The aperture controlling the light entering in the eye is called as
  • Iris
  • Pupil
  • Blind spot
  • Sclerotic layer
Parasympathetic nervous system increases the activity of
  • Gut, iris and urinary bladder
  • Heart, adrenal and sweat gland
  • Heart, pancreas and lacrimal gland
  •  Lacrimal gland and sweat gland
The photoreceptor cells of the eye are located in the
  • Sclera
  • Iris
  • Retina
  • Optic nerve
The .................... of the neuron secretes the substance named neurotransmitter.
  • Axon
  • Dendron
  • Schwann cell
  • None of the above
The space between meninges is filled with
  • Blood plasma
  • Lymph
  • Cerebrospinal fluid
  • ACTH
In comparison with other cells, nerve cells show a higher degree of
  • Metabolism
  • Growth
  • Contractility
  • Irritability
Neural stimulation in visceral organ in human being is done by
  • Sympathetic and parasympathetic nerves and is under involuntary action
  • Sympathetic nerves and is under voluntary action
  • Sympathetic and parasympathetic nerves and is under voluntary action
  • Parasympathetic nerves and is under voluntary action
Nucleated part of nerve cell is called as
  • Axon
  • Dendrites
  • Cyton
  • None of the above
Cell body of a nerve cell contains_____________.
  • Nucleus
  • Cytoplasm
  • Kupffer cells
  • Both A and B
Nerve fibre is
  • A thin nerve
  • Fibre formed by many axons
  • Fibre formed by ensheathing of axon in myelinated fibre
  • Fibre formed by ensheathing of a dendrite
The spinal nerves are
  • Only sensory
  • Only motor
  • Some sensory and some motor
  • All mixed nerves
Largest number of cell bodies of neuron in our body are found in the_________.
  • Retina
  • Spinal cord
  • Brain
  • Tongue
The function of sympathetic nervous system is to
  • Decrease heartbeat
  • Increase heartbeat
  • Contract respiratory organ
  • Secrete saliva
Synapse is the junction of________________.
  • Dendrites
  • Nerve cells
  • Nucleus
  • Axon
A long fibre like process coming out of the cyton of a nerve cell is
  • Axon
  • Dendron
  • Neurolemma
  • Neurofibrils
Nissl granules could be seen in
  • Bone cells
  • Gland cells
  • Myofibrils
  • Neurons
The most appropriate definition for neuroglial cells are that, they are________________.
  • Nonsensory supporting cells
  • Secretory cells
  • Sensory cells
  • Sensory and supporting cells
  • Nonsensory supporting or secretory cells
Largest eyes are found in
  • Deer
  • Horse
  • Monkey
  • Gibbon
In peripheral nervous system, the nerve fibers are made up exclusively of:
  • Dendrons
  • Axons
  • Nodes of Ranvier
  • Nissl body
Involuntary muscles are
  • Under the control of will
  • Not under the control of will
  • Controlled by nervous system
  • Not controlled by nervous system
Suspensory ligaments are found in
  • Brain
  • Eye
  • Ear
  • Kidney
Umbraculum, a covering on pupil is present in
  • Cat
  • Dog
  • Camel
  • Anableps
Nissl's granules are absent in:
  • Dendrite
  • Cyton
  • Axon
  • Synapse
Who was awarded the Nobel prize in Medicine of 1994 for the discovery of G-proteins?
  • Khorana and Lederberg
  • Richard J. Robert and Philip A. Sharp
  • Alfred G. Gillman and Martin Rodbell
  • Wilkin C. Jackson and Henry Paul
The neurons are specialised cells for
  • Conduction of nerve impulses
  • Conduction of food
  • Immunity
  • Digestion of food 
The plate situated between the eyes and passing below that on the head of cockroach is called as
  • Vertex
  • Fron
  • Epicranium
  • Gena
Unit of nervous system is
  • Neuron
  • Neuroglia
  • Axon
  • Cyton
What used to be described as Nissl granules in a nerve cell are now identified as?
  • Cell metabolites
  • Fat granules
  • Ribosomes
  • Mitochondria
Histiocyte of brain is a
  • Reticular cell
  • Microglial cell
  • Hessel's granule
  • Monocyte
Minimum regeneration power is present in, which of the following tissue?
  • Nervous tissue
  • Connective tissue
  • Epithelial tissue
  • Muscular tissue
When we smell a flower, which one of the following first receives the scent?
  • Dendrite of motor neuron
  • Dendrite of sensory neuron
  • Axon of motor neuron
  • Axon of sensory neuron
'Nodes of Ranvier' are found in 
  • Brain
  • Heart
  • Axon
  • Eye
The functional connection between two neurons is called as _________.
  • Synapse
  • Synapsis
  • Chiasma
  • Chiasmata
Myelin sheath is present over:
  • Neurons
  • Axons
  • Dendrons
  • Neuroglia
Pigmented epithelium is found in
  • Conjunctiva
  • Retina
  • Choroid
  • Cornea
In human, autonomic nervous system is composed of 
  • Sympathetic and parasympathetic nerves
  • Cranial and spinal nerves
  • Brain and spinal nerves
  • Medulated and non medulated nerves
Aperture of an eye can be changed by
  • Aquous humor
  • Vitreous humor
  • Ciliary muscles
  • Iris
Pigmented layer in eye is called as
  • Cornea
  • Sclerotic
  • Choroid
  • All of the above
Nissl granules are found in 
  • Liver cells
  • Nerve cells
  • Kidney
  • Heart
Nissl granules are absent in 
  • Axon
  • Dendron
  • Soma
  • All of the above
Which part of neuron is highly branched and afferent?
  • Axon
  • Dendrite
  • Cyton
  • Both A and B
Function of nervous tissue is
  • Irritability or excitability
  • Contraction
  • Responsiveness
  • None of the above
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