Where is the vertical plate located?

Where is the vertical plate located?

The perpendicular plate of the ethmoid bone (vertical plate) is a thin, flattened lamina, polygonal in form, which descends from the under surface of the cribriform plate, and assists in forming the septum of the nose; it is generally deflected a little to one or other side.

Does the palatine bone have a perpendicular plate?

The palatine bone is composed of two plates, the horizontal and perpendicular, which are connected and form a characteristic L-shape bone.

What is the function of horizontal plates of palatine bone?

The palatine bone has a horizontal and vertical plate as well as a pyramidal process (or pyramid-shaped portion). The horizontal plate makes up the roof of the mouth, and the rear portion of the oral cavity, just behind the nasal cavity; its front end is serrated and its back end is smoother.

Where is the perpendicular plate of palatine bone?

The front section of each horizontal plate articulates with part of the maxilla. The back of the horizontal plates (posterior border) meets the cartilage of the pharynx. The perpendicular plate of the palatine bone is the vertical line of the L. This plate is located behind the nasal conchae.

What does palatine bone mean?

In anatomy, the palatine bones (/ˈpælətaɪn/) are two irregular bones of the facial skeleton in many animal species, located above the uvula in the throat. Together with the maxillae, they comprise the hard palate. (Palate is derived from the Latin palatum.)

Is the palatine bone part of the orbit?

The floor of the orbit consists of three bones: the maxillary bone, the palatine bone, and the orbital plate of the zygomatic bone. This part of the orbit is also the roof of the maxillary sinus.

What processes terminates the perpendicular plate of the palatine bone?

the tubercle (pyramidal process), which is directed backwards, laterally and downwards from the junction of the horizontal and perpendicular plate, and the orbital and sphenoidal processes, which surmount the perpendicular plate and are separated by a deep notch, named the spbenopalatine notch.

What does the palatine bone separate?

The palatine bones are paired L-shaped bones joined at the midline. They form the hard palate with the maxillary bones. They also form part of the floor of the nasal cavity (the hard palate separates the oral cavity from the nasal cavity).

What is Cribriform plate?

The cribriform plate is the portion of the ethmoid bone that forms the roof of the nasal cavity. This narrow bony structure contains deep grooves known as olfactory fossa, which supports the olfactory bulb.

What is palatine bone?

The palatine bones contribute to the posterior part of the roof of the mouth and floor and lateral walls of the nose, the medial wall of the maxillary sinuses and the orbital floors. Each bone (Fig. 5-66) consists of horizontal and perpendicular plates (laminae) set at right angles to each other.