Self Studies

Neural Control and Coordination Test - 71

Result Self Studies

Neural Control and Coordination Test - 71
  • Score

    -

    out of -
  • Rank

    -

    out of -
TIME Taken - -
Self Studies

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Self Studies Self Studies
Weekly Quiz Competition
  • Question 1
    1 / -0
    Lateral rectus muscle of the eye is served by which cranial nerve?
    Solution
    The abducens nerve innervates the lateral rectus eye muscle that turns the eye outward away from the midline. 
    The oculomotor nerve serves the superior, inferior, and medial rectus muscles and inferior oblique muscles.
    The facial nerve serves taste buds, facial muscles, and the associated glands. 
    Spinal accessory nerves are not cranial nerves. These are the part of peripheral nervous system.
    So, the correct answer is option C.
  • Question 2
    1 / -0
    Photosensitive pigment is
    Solution
    All photoreceptors share a common visual pigment: a mixture of a vitamin A-based chromophore (retinal) and a seven-transmembrane-helix apoprotein (opsin). Together, they form rhodopsin. The pigments belong to a special class of receptors called as G protein-coupled receptors, characterised by signaling through heterotrimeric G proteins. 
    In vertebrates, the rhodopsin is thermally unstable, breaking down with light into the opsin and chromophore; rhodopsins are maintained by an enzymatic process. Invertebrate rhodopsins are stable, although renewal also must take place there.
  • Question 3
    1 / -0
    If the source of the light in front of the eye suddenly becomes more bright 
    Solution
    In order to reduce the amount of light entering into the eye, pupils constrict, and this constriction helps to decrease the strong light, which can be harmful to cells in the retina. The retina is the innermost layer of the eye which contains photoreceptor cells, that are useful for the formation of the image and perceiving an object. Another advantage of constriction of the pupil is to improve the clarity of image by blocking some of the rays of light, which can optically cause distortion of the image. The size of the pupil is controlled by the action of the pupillary sphincter muscle and dilator muscle.
  • Question 4
    1 / -0
    ANS affects the
    Solution
    The autonomic nervous system (ANS), also known as the visceral nervous system and involuntary nervous system, is a division of the peripheral nervous system, that influences the function of internal organs. The autonomic nervous system is a control system, that acts largely unconsciously and regulates the heart rate, digestion, respiratory rate, pupillary response, urination, and sexual arousal.
  • Question 5
    1 / -0
    The impulse for voluntary muscles for forced breathing starts in?
    Solution
    • The respiratory center is located in the medulla oblongata and is involved in involuntary control of breathing. 
    • The impulse for voluntary muscles for forced breathing starts in the cerebrum. The respiration is called voluntary respiration (which is in our control).
    So, the correct option is 'Cerebrum'.
  • Question 6
    1 / -0
    Synaptic vesicles are found in  ______
    Solution
    In a neuron, synaptic vesicles store various neurotransmitters, that are released at the synapse. The release is regulated by a voltage-dependent calcium channel. The presynaptic terminals contain numerous synaptic vesicles. 
    So, the correct answer is 'Presynaptic neuron'
  • Question 7
    1 / -0
    Which of the following two systems are opposite in action to each other?
    Solution
    Sympathetic and parasympathetic divisions function in opposition to each other. 
    This opposition is better termed complementary in nature rather than antagonistic. The sympathetic division functions in actions requiring quick responses. The parasympathetic division functions with actions that do not require immediate reaction. The sympathetic system is often considered the "fight or flight" system, while the parasympathetic system is often considered the "rest and digest" or "feed and breed" system.
  • Question 8
    1 / -0
    The one way or unidirectional transmission of nerve cells is due to 
    Solution
    A synapse is a place where axon terminals (presynaptic neuron) of one nerve fibre lie close to the dendrites of the adjacent neurons (postsynaptic neuron). These junctions are called as synapses. These ensure one-way or unidirectional transmission of impulses, as neurotransmitters are released from presynaptic end only and their receptors are present on the postsynaptic end only.
  • Question 9
    1 / -0
    After sympathetic stimulation, which type of activities are not present in a human being?
    Solution
    Urinary storage is a function of the sympathetic nervous system, whereas micturition is a function of the parasympathetic nervous system.
  • Question 10
    1 / -0
    Synaptic delay lasts for average of
    Solution
    • The synaptic delay is the time necessary for the conduction of a signal across a synapse; the interval between the arrival of a nerve impulse at the ending of a presynaptic fiber and the start of the postsynaptic potential. 
    • In synapses with a chemical transmission mechanism, a synaptic delay lasts from 0.30-0.5 milliseconds to several milliseconds. During most of this period, mediators are released by presynaptic endings under the influence of nerve impulses. 
    • The synaptic delay is practically absent in synapses with an electrotonic transmission.
Self Studies
User
Question Analysis
  • Correct -

  • Wrong -

  • Skipped -

My Perfomance
  • Score

    -

    out of -
  • Rank

    -

    out of -
Re-Attempt Weekly Quiz Competition
Self Studies Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Self Studies
Click on Allow to receive notifications
Allow Notification
Self Studies
Self Studies Self Studies
To enable notifications follow this 2 steps:
  • First Click on Secure Icon Self Studies
  • Second click on the toggle icon
Allow Notification
Get latest Exam Updates & FREE Study Material Alerts!
Self Studies ×
Open Now