What is the infraorbital region?

The infraorbital region is a component of the midface and can be defined as the anatomical area between the nasal aperture and the zygomatic bone below the inferior rim of the orbit and above the roots of the maxillary canine and premolars (Fig. 6.1).

Where does the infraorbital artery come from?

The infraorbital artery arises from the pterygopalatine part of the maxillary artery. The artery proceeds through the infraorbital foramen and emerges on the face to supply the inferior palpebral area, the lateral side of the nose, and the superior labial area.

Where is the infraorbital located?

maxillary bone
The infraorbital foramen is located in the maxillary bone. It is the anterior opening of the infraorbital canal, which is the anterior continuation of the infraorbital groove, which course through the floor of the orbit.

What does the infraorbital nerve innervate?

The branches of the infraorbital nerve innervate the lower eyelid, the lateral inferior portion of the nose and its vestibule, the upper lip, the mucosa along the upper lip, and the vermilion.

What does the maxillary nerve do?

Function. The Maxillary nerve gives cutaneous branches to the face. It also carries parasympathetic preganglionic fibers (sphenopalatine) and postganglionic fibers (zygomatic, greater and lesser palatine and nasopalatine) to and from the pterygopalatine ganglion.

What does infraorbital mean?

: situated beneath the orbit the infraorbital prominence of the cheekbones.

What is the function of infraorbital artery?

It supplies the lower eyelid and lacrimal sac, and it anastomoses with the angular artery and the dorsonasal artery. While in the infraorbital canal, the infraorbital artery supplies the inferior rectus and inferior oblique muscles and sends some branches to the maxillary sinus and to the teeth of the upper jaw.

Where does the infraorbital artery supply blood?

A branch of the maxillary artery; it enters the rear of the orbit through the inferior orbital fissure, it runs in the infraorbital groove, and it emerges on the face through the infraorbital foramen. It supplies blood to the canine and incisor teeth, the lower eyelid, upper lip, and cheek.

Where is the maxillary foramen located?

In human anatomy, the infraorbital foramen is an opening in the maxillary bone of the skull located below the infraorbital margin of the orbit. It transmits the infraorbital artery and vein, and the infraorbital nerve, a branch of the maxillary nerve….

What does the orbital nerve do?

Function. The supraorbital nerve provides sensory innervation to the skin of the lateral forehead and upper eyelid, as well as the conjunctiva of the upper eyelid and mucosa of the frontal sinus.

What are maxillary nerves?

The maxillary nerve is the second division of the trigeminal nerve and is also known as the V2 division. This nerve is the middle division of the trigeminal nerve and is attached to the distal convex border of the trigeminal ganglion. The maxillary nerve exits from the cranial cavity through the foramen rotundum.