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The diagram represents the external view of the human brain. Study it and then answer the questions that follow.

  1. Name the parts numbered a to d.
  2. What is the main function of the parts numbered c and d?
The diagram represents the external view of the human brain. Study it and then answer the questions that follow. 1. Name the parts numbered a to d. 2. What is the main function of the parts numbered c and d? Nervous System in Humans, Living Science Biology Ratna Sagar Solutions ICSE Class 8.

Nervous System

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Answer

  1. The parts numbered a to d are:
    a → Cerebrum
    b → Cerebellum
    c → Meninges
    d → Medulla oblongata

  2. The main function of the parts numbered c and d are:

    1. Function of Meninges (Part C) — They act as protective covering of brain with cerebrospinal fluid between them. They protect the brain from shock.
    2. Function of Medulla oblongata (Part D) — It controls the heartbeat, breathing and other involuntary movements.

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