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Neural Control and Coordination Test - 44

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Neural Control and Coordination Test - 44
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  • Question 1
    1 / -0
    Nervous band connecting the two cerebral hemispheres is
    Solution

    B. Corpus callosum

    Reason: Corpus callosum is a broad band of nerve fibres joining the two cerebral hemispheres of the brain in mammals. It is the largest white matter structure in the brain. It connects the left and right hemispheres of the brain and is responsible for most of the communication between the two.

  • Question 2
    1 / -0
    Subarachnoid space occurs 
    Solution

    A. Above piamater

    Reason: In humans, the brain is covered by three membranes or meninges. The innermost membrane, the piamater is thin, very delicate. The next is the arachnoid membrane. The outermost membrane, the duramater. Between the arachnoid membrane and pia-mater is a space known as subarachnoid space. Space that is present between the arachnoid and duramater is called subdural space. The subarachnoid space is filled with cerebrospinal fluid. 

  • Question 3
    1 / -0
    Meninges form outer envelope in 
    Solution

    C. Brain

    Reason: The brain is the anterior-most part of the central neural system which is lodged in the cranial cavity of the skull. The brain covered by three membranes or meninges. The innermost membrane, the piamater. The next is the arachnoid membrane and the outermost membrane, the duramater.

  • Question 4
    1 / -0
    Cerebrospinal fluid is formed by
  • Question 5
    1 / -0
    Parasympathetic nervous system is not involved in?
  • Question 6
    1 / -0
    Main function of cerebellum is
    Solution
    A. Balancing
    Reason: The most important function of the Cerebellum is to coordinate voluntary movements and provide balance to the body. Most of the movements are composed of a number of different muscle groups acting together in a temporally coordinated fashion. One major function of the cerebellum is to coordinate the timing and force of these different muscle groups. So the correct option is A.
  • Question 7
    1 / -0
    Which is mismatched ?
    Solution
    The cerebrum is composed of right and left hemisphere. The function of cerebrum include initiation and coordination of movement, temperature, touch, vision, memory, problem solving, reasoning, learning. Therefore, option A is matched.
    Medulla oblongata responsible for regulating function of autonomic nervous system including respiration, cardiac function, vasodilation and reflexes like vomiting, laughing, sneezing and swallowing. Medulla oblongata does not take part in temperature regulation. So option B is mismatched.
    Cerebellum responsible for voluntary movement and maintain equilibrium. So, option C is matched.
    Cranial nerves conveys special sensory information related to smell to the olfactory region of the brain. So option D is also matched.
    So, the correct answer will be option B.
  • Question 8
    1 / -0
    Common neurotransmitter of peripheral nervous system is
    Solution
    D. Acetylcholine
    Reason: The peripheral nervous system is divided into two parts, somatic and autonomic nervous systems. The autonomic nervous system is further categorized into the sympathetic and parasympathetic nervous systems. Acetylcholine is the neurotransmitter secreted by both pre and postganglionic parasympathetic neurons. The sympathetic preganglionic neurons release acetylcholine. This makes acetylcholine a common neurotransmitter of PNS. So the correct option is D.
  • Question 9
    1 / -0
    Venom of Cobra affects
  • Question 10
    1 / -0
    The only bone marrow cell that never appears in peripheral blood is
    Solution
    A. Myloblast
    Reason: The myeloblast is a unipotent stem cell that differentiates into granulocyte cells. Myeloblasts reside extravascularly in the bone marrow. Hematopoiesis takes place in the extravascular cavities between the sinuses of the marrow. The wall of the sinuses is composed of two different types of cells, endothelial cells, and adventitial reticular cells. The hemopoietic cells are aligned in cords or wedges between these sinuses, with myeloblasts and other granular progenitors concentrated in the subcortical regions of these hemopoietic cords. So the correct option is A.
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