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Q5.    Write short notes on the following:

        (c) Midbrain

Answers (1)

The midbrain consists of cerebral peduncles and corpora quadrigemina.

Cerebral Peduncles:

  • Cerebral peduncles are fibrous thick tracts.
  • They connect the cerebrum and the cerebellum.
  • Functions:
    • They relay the sensory and motor impulse between the forebrain and hindbrain.

Corpora Quadrigemina:

  • On the dorsal portion of the brain, there are two pairs of solid lobes present. These lobes are called corpora quadrigemina.
  • One pair is called superior colliculi and the other pair is called inferior colliculi.
  •  Functions:
    • The corpora quadrigemina controls the visual reflexes. They control the movement of the head and the eye.
    • They also control auditory reflexes. They control the movement of the head to locate and detect the source of sound.
Posted by

Priyanka Kumari

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