Frontal Process

Frontal process

The frontal process has the following meanings:

  1. (processus frontalis, PNA, BNA, JNA) - a process of the upper jaw, directed upward and connecting to the nasal part of the frontal bone.

  2. (processus frontalis, PNA; processus fronto-sphenoidalis, BNA; processus fronto-sphenoideus, JNA) – the upper process of the zygomatic bone, connecting with the zygomatic process of the frontal and greater wing of the sphenoid bone.

  3. (processus frontalis, LNE) - the protrusion of the head of the human embryo during the first 4-6 weeks of development, limiting the upper edge of the primary oral opening.



The frontal process is a process of the upper or lower jaw that is located on its front part and connects to other bones of the skull. In anatomy, there are several types of frontal processes, which have different names and functions.

The first type of frontal process is the frontal process of the maxilla. It is directed upward and connects to the nasal part of the frontal bone. This process is part of the upper jaw and is involved in the formation of the facial skeleton. It can also be used to attach facial muscles and teeth.

The second type of frontal process is the frontal zygomatic process, or zygomatic process of the frontal bone. It is located on the upper part of the zygomatic bone and connects with the zygomatic process of the frontal bone and the greater wing of the sphenoid bone. This process is involved in the formation of the facial bone and may be involved in strengthening the facial muscles.

The third type of frontal process is the frontal prominence of the embryo. This is the protrusion of the head of the embryo that limits the upper edge of the primary mouth. The development of the frontal prominence of the embryo begins at 3-4 weeks of development and continues up to 6 weeks. This protrusion is essential for the formation of facial structures and protects the brain from damage.

Overall, the frontal processes play an important role in the formation of facial bones and provide support for muscles and teeth. They are also involved in the formation of the skull and protect the brain. Knowledge of the anatomy of the frontal processes can be useful for doctors involved in surgical operations on the face and maxillofacial region.