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Which is correct about pons varolii?
A) Situated between midbrain and medulla oblongata
B) Pons regulate pneumotaxic centers.
C) Inner white outer grey matter
D) All of the above

Last updated date: 17th Apr 2024
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Hint: Pons varolii is a band of nerve fibres linking the medulla oblongata and the cerebellum with the midbrain

Complete Answer:
To answer this question let us have a look at the different parts of the human brain. The pons (part of metencephalon) lies between the medulla oblongata and the midbrain. It contains tracts that carry signals from the cerebrum to the medulla and to the cerebellum. It also has tracts that carry sensory signals to the thalamus.Pneumotaxic centre is a neural center in the upper part of the bonds that provides inhibitory impulses on the inspiration and thereby prevents overdistention of the lungs and helps to maintain alternately recurrent inspiration and expiration. Grey and white matter of the brain are distinguishable from each other as grey matter contains numerous cell bodies and relatively few myelinated axons, while white matter contains relatively few myelinated axons. So, pons is the part of the hindbrain and situated between midbrain and modular of long data , regulates pneumo texniccenter, and has inner grey and outer white matter. As a part of the brainstem, the pons helps in the transferring of nervous system messages between various parts of the brain and the spinal cord. The primary function of bonds is to regulate breathing, sleeping, etc.

Hence, the correct answer is option ‘D’.

Note: Pons varolii is named so after the Italian anatomist and surgeon Costanzo Varolio. The varoli’s Bridge is the largest section of the brainstem and is also called pons varoli in late in, the two words pons varoli are derived from Pons which means bridge in Latinand varoli is the name of the surgeon, he discovered this part of the brain between the years 1543 and 1575.