Where is aqueous humour produced, what is its circulation path, and where does it drain from the eyeball?

Explanation

### Step-by-Step Solution:

1. **Production of Aqueous Humour**:
- Aqueous humour is produced by the **ciliary processes** located in the eye. These processes are part of the ciliary body, which is situated behind the iris.

2. **Circulation Path of Aqueous Humour**:
- After its production, the aqueous humour flows from the **posterior chamber** of the eye.
- It then moves through the narrow space between the **iris** and the **anterior lens**.
...