Tag: nervous and endocrine system in humans
Questions Related to nervous and endocrine system in humans
The brain is responsible for
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Thinking
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Regulating the heart beat
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Balancing the body
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All of the above
The cerebellum is the convoluted subdivision of brain stem and is associated with coordination of muscular movement, muscle tone and balance. Medulla oblongata controls consciousness and arousal (the reticular formation) and its cardiovascular reflex centre controls heartbeat. The cerebrum is the largest and uppermost division of brain. It is the centre for higher thought processes required for learning, memory, language and speech. The correct answer is D.
Select the correct option:
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Tight
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Adhering
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Gap
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None of these
The blood-brain barrier is a dynamic conduit for transport taking place between brain and blood. The blood vessels and brain are lined with endothelial cells that are wedged tightly together, creating a nearly impermeable boundary.
Assertion: In man, only peripheral nervous system is present.
Reason: The peripheral nervous system includes nerves coursing between the central nervous system and different parts of the body.
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If both the assertion and the reason are true and the reason is the correct explanation of the assertion
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If both the assertion and the reason are true and the reason is not the correct explanation of the assertion
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If the assertion is true and the reason is false
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If both the assertion and the reason is false
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If the assertion is false but the reason is true
The nervous system of human comprises of Central Nervous System - comprises of brain and spinal cord. Peripheral Nervous System - comprises of nerves present between brain and body parts.
Endorphin release is stimulated by
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Sleep
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Endogenous rhythm
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Exercise
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Carotene-rich food
The human brain weight approximately ..........% of the body weight.
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1%
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2%
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5%
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10%
During period of starvation, the following organ is most likely to decrease in size?
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Brain
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Heart
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Thymus
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None of these
Brain is the main .......... centre of the body.
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Peripheral
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Nervous
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Chemical
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Physical
The brain serves as the center of the nervous system in all vertebrates and most invertebrate animals. Only a few invertebrates, such as sponges, jellyfish, adult sea squirts and starfish do not have a brain.In such organisms, a diffuse neural tissue is present. It is located in the head, usually close to the primary sensory organs for such senses as vision, hearing, balance, taste and smell. The brain is the most complex organ in a vertebrate's body.
The cavities of brain are lined by
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Cuboidal cells
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Polygonal cells
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Ependymal cells
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Simple squamous cells
Ependymal cells are the cube-shaped epithelial cells that forms the epithelial lining of the cavities in brain and central canal of spinal cord. These cells are formed from a layer of embryonic tissue known as neuroectoderm and secrete cerebrospinal fluid for mechanical protection.
Human brain is covered by
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Two meninges
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Three meninges
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Five meninges
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None of the above
Meninges are the membranes that envelop the brain and spinal cord of the central nervous system.
Which of the following is correct?
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Spinal cord is a part of central nervous system.
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Nerves are continuous fibres.
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Reflexes are not controlled by nerves.
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None of the above.
The spinal cord is a part of the central nervous system. The most important structure between our body and our brain is the spinal cord. It extends from the foramen magnum, where it is continuous with the medulla to the level of the first or second lumbar vertebrae. It is a vital link not only from the brain to the body but also from the body to the brain. The spinal cord is 40 to 50 cm long and 1 cm to 1.5 cm in diameter.