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Neural Control and Coordination Test - 8

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Neural Control and Coordination Test - 8
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Image formation in eye occurs at
    Solution
    Retina is a photosensitive layer which lines the inner part of the eye. It is composed of the photosensitive rod and cone cells which trap the light rays focused by the pupil and iris. The rod and cone cells have bipolar neurons that convert the light energy into chemical potential which is detected by the optic nerves and carried to the forebrain for further analysis.

  • Question 2
    1 / -0
    Which part of the donor's eye is used for grafting in order to cure certain cases of blindness?
    Solution
    Cornea is the eye’s clear and protective outer layer. Along with the sclera it serves as a barrier against dirt and germs that can cause eye damage. A cornea transplant is often referred to as keratoplasty or a corneal graft. It can be used to improve sight, cure blindness, relieve pain and to treat severe infection or damage. Thus the correct answer is option C
  • Question 3
    1 / -0
    The whitish part of eye mainly:
    Solution
    Whitish part of eye is tough so that it can protect the eye from injuries.
    It is white and transparent coat, known as cornea.
  • Question 4
    1 / -0
    Coloured (pigmented) layer of eye is
    Solution

    The vascular layer of the eye, that lies between the retina and the sclera is called as choroid. It contains the retinal pigmented epithelial cells and provides oxygen and nourishment to the retina. The dark-colored pigment in the choroid absorbs light and limits reflections within the eye, that could degrade vision.

  • Question 5
    1 / -0
    Which of the following are composed of nervous tissue? 
    Solution
    • The cells of the nervous tissue are highly specialized for being stimulated and then transmitting the stimulus very rapidly from one place to another within the body. 
    • The brain, spinal cord and nerves are the most important for stimulation and transmission of the stimulus. 

    Therefore, option A is the correct answer.
  • Question 6
    1 / -0
    Which system transmits impulses between different parts of the body?
    Solution
    A complex network of nerve cells or neurons forms the nervous system. This system is responsible for transmitting electrical impulses throughout the body.
    So, the correct answer is 'Nervous system'.
  • Question 7
    1 / -0
    Which of the following actions are controlled by ANS?
    Solution
    Autonomic Nervous System controls involuntary muscles. Swallowing is an involuntary action 
    So, the correct answer is 'Swallowing'
  • Question 8
    1 / -0
    Which of the following nervous system is considered fight or flight system?
    Solution
    The autonomic nervous system has two branches: the sympathetic nervous system and the parasympathetic nervous system. The sympathetic nervous system is often considered the "fight or flight" system, while the parasympathetic nervous system is often considered the "rest and digest" or "feed and breed" system. In many cases, both of these systems have "opposite" actions where one system activates a physiological response and the other inhibits it. 
    Therefore, the correct answer is option A.
  • Question 9
    1 / -0
    Which cells in the retina recognize colour?
    Solution
    The retina is a layered structure with several layers of neurons interconnected by synapses. The only neurons that are directly sensitive to light are the photoreceptor cells. These are mainly of two types, the rods and cones. Rods function mainly in dim light and provide black-and-white vision, while cones support the daytime vision and the perception of colour. 
    Thus, the correct answer is option B.
  • Question 10
    1 / -0
    The rods are for .......... vision.
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