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Neural Control and Coordination Test - 22

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Neural Control and Coordination Test - 22
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  • Question 1
    1 / -0
    Synapse is the junction of________________.
    Solution
    A synapse is a junction that permits the nerve cell to pass an electrical signal or chemical signal to another nerve cell. Hence, it is a junction of nerve cells. 
    Therefore, option B is correct.  

  • Question 2
    1 / -0
    Neurons are classified on the basis of
    Solution
    Neurons can be differentiated as unipolar, bipolar or multipolar depending upon the number of processes arising from the cell body. 
    Unipolar neuron possesses just one process emerging from the cell. 
    Bipolar neuron possesses two processes. These processes arise from each end of the cell body. 
    Multipolar shows many processes arising from the cell body.
    Therefore, option B is correct. 
  • Question 3
    1 / -0
    A long fibre like process coming out of the cyton of a nerve cell is
    Solution
    • Dendrons are short, branched parts arising from cell body or cyton. Dendrons are many in number. 
    • Neurolemma is the outermost nucleated cytoplasmic layer of Schwann cells. It surrounds the axon of the nerve cell. 
    • Neurofibrils are long, thin, microscopic fibrils that run in every direction in the cell body and also extend in axon and dendrites. 
    • Axon is a long, thin hair-like processes coming out of the cyton of a nerve cell. 
    Hence, option A is correct. 
  • Question 4
    1 / -0
    Bowman's glands are located in
    Solution
    answer:
    Correct Answer: C
    Explanation:
    • Bowman's glands are also known as Olfactory gland.
    • This gland is situated in the olfactory epithelium of nose .
    • It contains connective tissue, fibroblasts, blood vessels, and bundles of axons.
    Hence, Bowman's glands are located in olfactory epithelium of nose.
  • Question 5
    1 / -0
    If semifluid nucleus pulposus of intervertebral disk enters the vertebral canal, it will lead to 
    Solution
    There are intervertebral discs between the adjacent vertebrae. The disc forms a fibrocartilaginous joint. The discs consists of an outer fibrous ring which is called the anulus fibrosus. This surrounds the inner gel-like center which is called as the nucleus pulposus. The nucleus pulposus contains loose fibers which are suspended in a mucoprotein gel. The nucleus of the disc acts as a shock absorber. If this enters the vertebral canal, then it may lead to various neurologic disorders and also compression of nerve roots and spinal cord.
    Thus, the correct answer is option D. 
  • Question 6
    1 / -0
    The most dorsal (topmost) regions of the human primary motor areas on both hemispheres control movement of
    Solution
    Different body parts have been controlled in the primary motor cortex which is compiled in an arrangement called motor homunculus. The leg area is located close to the midline and in the interior sections of the motor area which gets folded into the medial longitudinal fissure. The primary motor areas are responsible for controlling the movements of the legs. Malfunctioning of this region might result in paralysis of the limbs, along with deformities in the working of hands and face. 
    So, the correct answer is option B.
  • Question 7
    1 / -0
    In peripheral nervous system, the nerve fibers are made up exclusively of:
    Solution
    Nerves are made up of bundles of the axons of nerve cells. A nerve is an enclosed, cable-like bundle of axons (long, slender projections of neurons) in the peripheral nervous system.
    Hence, the correct option is B.
  • Question 8
    1 / -0
    Which one of the following is a part of diencephalon?
    Solution
    • The basal ganglia are a group of structures found deep within the cerebral hemispheres.
    • The structures generally included in the basal ganglia are the caudate, putamen, and globus pallidus in the cerebrum, the substantia nigra in the midbrain, and the subthalamic nucleus in the diencephalon.
    • Hence Basal ganglion is a part of the diencephalon.
    • So the correct option is C.
  • Question 9
    1 / -0
    The neurons are specialised cells for
    Solution
    • The neurons are specialized for the conduction of nerve impulses with the help of synapse. 
    • A synapse is a structure that allows a neuron to pass the electrochemical signal to another neuron. 
    • Hence activity helps in coordinating the various activities of the body.
      Therefore, the correct answer is option A. 
  • Question 10
    1 / -0
    The nervous tissue, which contains densely packed cells are called as
    Solution
    • The densely packed nerve cells present in the brain, spinal cord, and sense organs are called neurons. They are specialized for the conduction of nerve impulses and they are mainly of two types, sensory neurons, and motor neurons.

    So, the correct option is 'Neurons'.
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