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Neural Control and Coordination Test - 41

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Neural Control and Coordination Test - 41
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  • Question 1
    1 / -0
    Non-excitable variously shaped cells found between neurons are ________________.
    Solution
    Answer is option A i.e. "Glial cells"
    Glial cells- These cells are the helper cells in the central nervous system. They surround the neurons and provide insulation between two neurons. There are variously shaped like oligodendrocytes, astrocytes (star-shaped), ependymal etc.
    Dendrites- They are branched extensions of nerve cells.
    Nissl bodies- It is a large granular body found in the neuron cells.
    Nodes of Ranvier are gaps in the myelin sheath of axons.
    Thus the correct answer is "Glial cells"
  • Question 2
    1 / -0
    A polypeptide that regulates hunger is
    Solution
    Endomorphins are the chemical substance which is present in the neurons. It helps in the perception of pain, reactions to stress, and cardiovascular, respiratory and digestive functions. They are produced within the body so they are known as endogenous. They specifically work by binding to opoid receptors which are mainly found in nervous system and regulates the motor neurons and autonomic nervous system. The regulation of sympathetic and parasympathetic chain helps to control hunger.
    So, the correct answer is option A.
  • Question 3
    1 / -0
    Which is not a neuroglial cell?
    Solution
    The neuroglia or glial cells are defined as supportive cells of the central nervous and peripheral nervous system that primarily support, protect and nourish the neurons. There are basically four types of neuroglial cells:-
    Astrocytes, Oligodendrocytes, Microglia and Ependyma.While Chondrocytes are cells that make up the dense connective tissue that is present in the cartilage matrix.
    So, the correct answer is 'Chondrocyte'.
  • Question 4
    1 / -0
    Which of the following is not a connecting tissue?
    Solution
    Bone, Blood and Lymph are all types of specialized connective tissue. But, nerve cells belong to a different set of tissues named nervous tissue. Nervous Tissues are the primary tissue of the nervous system that allows communication between various organs and tissues. It is composed of glial cells and neurons.
    So, the correct answer is 'Nerve'.
  • Question 5
    1 / -0
    Choose the odd pair.
    Solution
    The correct option is D.
    Neuron is related to the nervous system and Melanin is the pigment responsible for skin pigmentation. 
  • Question 6
    1 / -0
    Association area of cerebrum is meant for
  • Question 7
    1 / -0
    Somaesthetic area lies in
    Solution
    The somesthetic area occurs in the parietal lobe of the cerebrum. It is involved in the analysis of touch, pressure, pain, knowledge of space position, the sensation of the environment etc. 
    A. The premotor area and the prefrontal cortex appear in the frontal lobe.
    B. Wernicke's area occurs in the temporal lobe.
    C. Somesthetic area occurs in the parietal lobe.
    D. Occipital area occurs in the occipital lobe.
    Hence, the correct answer is 'Parietal lobe'
  • Question 8
    1 / -0
    Cavity found in the thalamencephalon is 
    Solution
    The thalamencephalon region consists of the thalamus, epithalamus and the hypothalamus. Together with the hypophysis, this region makes up the diencephalon of the forebrain. The 3rd ventricle also called the diacoel is present between the right and left halves at the midline above the thalamus.  The 1st and 2nd ventricles are called the lateral ventricles that are located in the cerebral hemispheres and are called the paracoel. The 4th ventricle called the metacoel is located between the pons and the cerebellum.
    Hence, the correct answer is 'Diacoel'
  • Question 9
    1 / -0
    Grey matter is external and white matter is internal in
    Solution
    The major portion of the brain has the myelinated axons of the neurons located beneath the cell bodies and the unmyelinated nerve fibres. So, the white matter is internal and the grey matter is external. The cortex region of the cerebrum and cerebellum that are the main processing regions are made of the grey matter. Similarly, the olfactory lobes, diencephalon etc. also have the grey matter located external to the white matter. The placing reverses in the brainstem and spinal cord.
    Hence, the correct answer is 'All of the above'
  • Question 10
    1 / -0
    The sensation of sight in human brain is perceived by
    Solution
    The cerebrum of the brain can be divided into different lobes viz. frontal lobe, temporal lobe, parietal lobe and the occipital lobe. The occipital lobe that above the cerebellum is concerned with the sensation of the vision and sight because the optic nerve leads to this lobe from the retina of the eye. The association area of the frontal lobe is concerned with the analysis of the movement of the voluntary muscles. The somesthetic area of the parietal lobe is concerned with the sensation of pain, temperature, pressure etc. 
    Hence, the correct answer is 'Occipital lobes'
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