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What is the orbital rim?

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What is the orbital rim?

Table of Contents

  • What is the orbital rim?
  • What shape are orbital bones?
  • What is your orbital?
  • Where is peri orbital?

The anterior edge of the bony orbit, or eye socket, formed by the maxilla and zygomatic bone inferiorly and the frontal bone superiorly. See also: rim.

What is a orbital region in anatomy?

In anatomy, the orbit is the cavity or socket of the skull in which the eye and its appendages are situated. “Orbit” can refer to the bony socket, or it can also be used to imply the contents.

What are the orbital bones?

The orbit appears as a quadrangular pyramidal cavern in the upper face. It is made up of four facial bones and three cranial bones: maxilla, zygomatic bone, lacrimal bone, palatine bone, frontal bone, ethmoid bone, and sphenoid bone.

What shape are orbital bones?

pear shape
The orbit is a pear shape, with the optic nerve at the stem, and holds approximately 30 cc volume. The entrance to the globe anteriorly is approximately 35 mm high and 45 mm wide. The depth from orbital rim to the orbital apex measures 40 to 45 mm in adults. The maximum width is 1 cm behind the anterior orbital margin.

What is orbital floor?

The adult orbital floor is composed of the maxillary, zygomatic, and palatine bones (see image below). The orbital floor is the shortest of all the walls; it does not reach the orbital apex, measures 35-40 mm, and terminates at the posterior edge of the maxillary sinus.

What is the orbital area of the face?

Also called “the orbit,” the orbital “bone” is actually seven strong bones that make up the encasing of the open socket of the eye; these bones come together to house the actual eye. The periorbital skin is the skin/area around your eye.

What is your orbital?

The eye socket, or orbit, is the bony cup surrounding your eye. Seven different bones make up the socket. The eye socket contains your eyeball and all the muscles that move it.

How many orbital bones are there?

Seven bones
The orbit, which protects, supports, and maximizes the function of the eye, is shaped like a quadrilateral pyramid, with its base in plane with the orbital rim. Seven bones conjoin to form the orbital structure, as shown in the image below.

How many bones are in the orbit?

seven bones
The following seven bones form the orbit: Sphenoid. Frontal. Zygomatic.

Where is peri orbital?

Anatomy design of the periorbital area The well-known anatomical classification divides the face into: upper face, mid face and lower face. At the boundary between upper and mid face is the periorbital area which also contains three zones (Figure 1).

What is axial Proptosis?

Axial proptosis is seen in tumours arising within the muscle cone like optic nerve glioma. The eyeball is displaced down and/or lateral in diseases of frontal or ethmoid sinuses. Lacrimal gland or temporal fossa tumours have a medial displacement [8].

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