Which part of the brain acts as a bridge to transmit signals?

The part of the brain that acts as a bridge to transmit signals is the midbrain. The midbrain is a small but very important part of the brainstem that acts as a relay centre for transmitting signals between the hindbrain and the forebrain. It plays a critical role in controlling many important functions such as vision, hearing, motor control, and regulation of sleep and wakefulness.

The hindbrain, which includes the medulla oblongata, pons, and cerebellum, is responsible for many basic life-support functions such as breathing, heart rate, and digestion. The forebrain, which includes the cerebrum, thalamus, and hypothalamus, is responsible for more complex functions such as conscious thought, sensation, and voluntary movement. However, neither the forebrain nor the hindbrain acts as a bridge to transmit signals between other parts of the brain.