The foramen is a very important part of the mandible as it acts as the gateway for neurovascular structures so that they can pass freely without any intrusion. This term is used to define any particular opening that is used for the transport of the neurovascular structures. There are 2 different types of foramina present in the mandible. One of them is known as the mandibular foramen and the other is known as the mental foramen. The mandibular foramen is situated in the ramus of the mandible and the mental foramen is situated on the outer side of the mandible body. These foramina act as the passage for the inferior artery and nerve.