CBSE Questions for Class 11 Medical Biology Neural Control And Coordination Quiz 5 - MCQExams.com

Which cell in our body is more than a feet long?
  • Nerve cell
  • Muscle cell
  • Bone cell
  • Gland cell
The Nissl granules of nerve cells are made up of 
  • Ribosome
  • Protein
  • DNA
  • Mitochondria
Neuroglial cells are associated with the
  • Heart
  • Kidney
  • Brain
  • Eyes
The pigment found in rods is 
  • Rhodopsin
  • Melanin
  • Photosin
  • Keratin
Supporting cells of retina is
  • Dieters cells
  • Hensen's cells
  • Muller cells
  • Amacrine cells
Nissl's granules are absent in 
  • Axon
  • Cyton
  • Dendron
  • Schwann cells
Which of the following glands are found in majority of mammals associated with their eyes?
  • Harderian and meibomian
  • Lacrimal and sudorific
  • Lacrimal and meibomian
  • Harderian and lacrimal gland
Largest eyes amongst land animals is of
  • Elephant
  • Deer
  • Ostrich
  • Man
Meibomian gland are associated with 
  • Eyes
  • Ears
  • Reproductive organ
  • Skin
Harderian gland occurs in 
  • Lizard
  • Frog
  • Birds
  • All of the above
The sensitive membrane in our ears is called as
  • Diaphragm
  • Mucus membrane
  • Eardrum
  • Earlobe
Main parts of a neuron are ............... and .........................
  • Cell body, axon
  • Axon hillock, synaptic knob
  • Cell body, synaptic knob
  • Myelin sheath, axon
................... is the functional and structural unit of the nervous system.
  • Neuron
  • Nephron
  • Cerebrum
  • Cerebellum
Pupil is
  • The transparent covering which protects our eyes
  • The tissue made of cells that are sensitive to different colours of the objects we see
  • The opening through which the light reflected from the objects enters our eyes
  • The nerve that carries the signals from eyes to the optical cortex of the brain
Cornea is
  • Transparent covering that protects our eyes
  • The screen on which the images of the things we see fall
  • The nerve connecting eye to the optical cortex of the brain
  • The cells sensitive to different colours of the objects we see
All information from our environment is detected by the specialized .................. cells.
  • Nerve
  • Nephron
  • Glial
  • Companion
Power of regeneration is lowest in 
  • Brain cell
  • Liver cell
  • Bone cell
  • Muscle cell
A nerve is composed of
  • Muscular tissue
  • Nerve fibre bundles
  • Bundle sheaths
  • None of the above
Identify the part "E" from the shown figure of human eye : 
283836_037f76e825784c00a058b274f1c92dbd.png
  • Retina
  • Optic nerve
  • Cornea
  • Pupil
Which type of tissue forms spinal cord and brain?
  • Muscular tissue
  • Nervous tissue
  • Epithelial tissue
  • Connective tissue

Cornea is a part of which of the following organs of human body ?
  • Eye
  • Ear
  • Nose
  • Heart
  • Kidney
Which cell organelle is absent in neuron?
  • Mitochondria
  • Ribsomes
  • Centrioles
  • Nucleus
Nerve cells are also known as ______.
  • Neurons
  • Hepatocytes 
  • Nephrons 
  • Erythrocytes
Which of the following are correct names for the parts of neuron?
  • Cyton (cell body), Dendrites and Axon
  • Nerves, Nerve cells and Axon
  • Cyton (cell body), Axon and nerves
  • Nerves, Dendrites and Axon
The functional unit of nervous tissue is called as_________
  • Cyton
  • Synapse
  • Neuron
  • Axon
Nissl's granules are present in which cells of the body?
  • Neurons
  • Hepatocytes 
  • Nephrons 
  • Osteocytes 
The longest cell in human body is_______________
  • Neuron
  • Muscle fibre
  • Epithelial cell
  • Bone cell
What is the function of nerve cells?
  • Nerve cells receive messages from different parts of the body.
  • Nerves transfer the messages to the brain.
  • Brain send commands for the functioning of different organs of the body via nerves.
  • All of the above
Constriction of the pupil is function of
  • Parasympathetic system
  • Hypothalamus
  • Thalamus
  • None of the above
The longest cell in the human body is _____________
  • Muscle cell
  • Nerve cell
  • Lung cell
  • Blood cell
Centre of autonomic nervous system is located in
  • Hypothalamus
  • Medulla oblongata
  • Cerebellum
  • Both A and B
The longest cell in the body of an animal is
  • Osteocytes
  • Neuron
  • Chromatophores
  • Lymph corpuscles
Synapse is the junction of
  • Dendrites
  • Neurons
  • Nucleus
  • Axon
Which cells form no layers and remain separate?
  • Epithelial cells
  • Muscle cells
  • Nerve cells
  • Gland cells
Which of the following is not a function of neurons?
  • Receive information
  • Conduct a signal
  • Form the myelin sheath
  • Co-ordinate metabolic activities
Nerve cells have many short branches called as___________
  • Dendrites
  • Neurons
  • Axons
  • Neutrophils
Iris of an eye is an extension of
  • Cornea
  • Sclerotic
  • Retina
  • Choroid
In mammals, the autonomic system is composed of
  • Sympathetic and parasympathetic nerves
  • Cranial and spinal nerves
  • Brain and spinal cord
  • Medullated and non-medullated nerves
Which is activated in stress condition?
  • Sympathetic nervous system
  • Parasympathetic nervous system
  • Somatic nervous system
  • None of the above
The cornea and lens of the mammalian eye are both
  • Richly supplied by blood vessels
  • Transparent and they diverge the light rays to form an image on retina
  • Transparent and they contribute in the formation of image on retina
  • Richly supplied by nerves
The site from where the nerve impulse for hearing originates in mammals is
  • Ear ossicles
  • Cochlea
  • Tympanum
  • Vestibule
Ventricles of brain are lined by the cells known as
  • Ependymal cells
  • Nerve cells
  • Neuroglia
  • Schwann's cells
Which is not true of a synapse?
  • Neurotransmitters affect postsynaptic neurons
  • Many neurons may be involved
  • A synaptic cleft separates the neurons of the synapse
  • Neurotransmitters are released from dendrites
Which of the following helps eye to adjust the focal length of the lens?
  • Cornea
  • Iris
  • Ciliary body
  • Retina
A person going up to 10,000 feet high in a hot balloon may develop severe pain in the ear due to
  • Blocked eustachian tube
  • Rupture of fenestra rotunda
  • Endolymph getting into semicircular canals
  • Fear of great height
Part of the eye, which is devoid of blood vessel?
  • Retina
  • Choroid
  • Cornea
  • Sclera
The surface of nerve fibres bears narrow areas called
  • Schwann cells
  • Schwann nodes
  • Nodes of Ranvier
  • Nissl's granules
The part of the ear which distinguishes different pitches of sound is
  • Auditory nerve
  • Semicircular canal
  • Organ of corti
  • Scala media
The speed at which impulses are conducted increases with  
  • Increase in diameter of the soma
  • Increase in diameter of the axon
  • Increase in number of dendrites
  • Increase in branching of the dendrites
The inhibitory effect of vagus nerve on the heart is due to the secretion of 
  • Acetylcholine
  • Norepinephrine
  • Glycine
  • Dopamine
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