What are the major functions of the intervertebral discs absorb shock and provide flexibility to spine?

The intervertebral discs are cartilage, a kind of pad, which is located between one vertebra and another. Its function is to cushion and distribute the loads, stabilizing the movement between the vertebrae.

Explanation:

The intervertebral discs are the structures that separate each of the vertebrae that make up the spinal column. Its main function is to absorb or cushion the compression forces of the spine, distributing the loads evenly, in addition to participating in the vertebral movement. Due to factors such as aging, overloads, instability of the vertebrae, alterations and bad postural habits, diseases inflammatory or trauma, the disc begins to deteriorate, loses water and becomes more flaccid and deformable, losing its properties: by retaining less water, the disc has no absorption power and its internal pressure or swelling decreases, so the fibrous ring becomes more brittle and tends to break.

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if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.