What is the location and function of corpora quadrigemina ?

Explanation

### Step-by-Step Solution:

1. **Identify the Structure**: The corpora quadrigemina is a part of the brain, specifically located in the midbrain.

2. **Location**: It is situated on the tectum of the dorsal aspect of the midbrain. The midbrain is one of the three primary regions of the brain, located above the hindbrain and below the forebrain.

3. **Components**: The corpora quadrigemina consists of four colliculi: two superior colliculi and two inferior colliculi. These are paired structures that are involved in different sensory processing functions.

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