Why are brains squishy?

Brains are squishy because they are composed of a soft, gelatinous material called neural tissue. Neural tissue is made up of neurons, the basic units of the brain and nervous system, and glial cells, which provide support and protection for the neurons. The brain also contains a large amount of water, which helps to keep it hydrated and helps to transmit electrical signals between neurons.

The squishy nature of the brain is important for several reasons. First, it allows the brain to change shape as it grows and develops. As a child's brain grows, the skull grows along with it, but the brain is able to change shape to fit inside the skull. This is important because the brain needs a certain amount of space to function properly.

Second, the squishy nature of the brain helps to protect it from damage. When the head is struck, the brain is able to move slightly inside the skull, which helps to absorb the impact and prevent damage to the brain tissue.

Third, the squishy nature of the brain helps to transmit electrical signals between neurons. When a neuron fires, it releases electrical signals that travel along its axons to other neurons. These electrical signals are able to travel more easily through the soft, gelatinous material of the brain than they would be able to travel through a hard, solid material.

In addition to being squishy, the brain is also very delicate and sensitive. It is important to handle the brain with care to avoid damaging it.