What forms much of the lateral and superior cranium?

What forms much of the lateral and superior cranium?

The parietal bone forms most of the upper lateral side of the skull (see Figure). These are paired bones, with the right and left parietal bones joining together at the top of the skull.

What is the most posterior part of cranium called?

The occipital bone is the most posterior aspect of the skull. There are three cranial fossae with various structural landmarks. The anterior cranial fossa forms from the frontal bone, the sphenoid bone, and the ethmoid bone. The middle cranial fossa forms from the sphenoid bone and two temporal bones.

Which bones contain the tear ducts?

Specifically, the lacrimal bone helps form the nasolacrimal canal necessary for tear translocation. A depression on the anterior inferior portion of the bone, the lacrimal fossa, houses the membranous lacrimal sac. Tears or lacrimal fluid, from the lacrimal glands, collect in this sac during excessive lacrimation.

What is the site of sella turcica called?

Structure. The sella turcica is located in the sphenoid bone behind the chiasmatic groove and the tuberculum sellae. It belongs to the middle cranial fossa. The sella turcica’s most inferior portion is known as the hypophyseal fossa (the “seat of the saddle”), and contains the pituitary gland (hypophysis).

Which bone is the posterior part of the hard palate?

palatine bone
The horizontal plate of the palatine bone completes the hard palate posteriorly.

Which bones contain alveoli bearing teeth?

The alveolar process, which is also called the alveolar bone, is a thickened ridge of bone containing the sockets of the teeth or dental alveoli. It is located on the jaw bones which hold the teeth. The tooth-bearing bones are called the maxilla and the mandible.

What bone is shaped like a bat?

sphenoid
Our bat-shaped sphenoid is divided into a median body, two greater wings, two lesser wings, and two pterygoid plates. Think of the body of the sphenoid as the body of the bat it’s shaped like: it is from the body that the wings and processes project. It is cubical in shape.

Are sinus connected to eyes?

Though sight and smell are two very different senses, the eye and nose are intimately connected by the nasolacrimal apparatus, the drainage system that carries tears from the ocular surface to the nose and ultimately to the gastrointestinal tract. The interconnected nature of the nasolacrimal system.

Do sinuses drain into eyes?

If they get blocked, we often tend to feel that we are making excess tears- as our normal tears can’t drain. If you blow your nose and the nose is congested- or hold the nose too tightly when you blow- mucus from the nose can go the other way- through the tear ducts and around the eye.

What is Tuberculum sella?

Gross anatomy The tuberculum sellae forms the anterior wall of the sella turcica, which houses the pituitary gland. It is an elongated ridge located immediately posterior to the chiasmatic groove, hence is related to the optic chiasm and anterior portions of the optic tracts.

Why is it called sella turcica?

The sella turcica derives its name from the Latin words for Turkish saddle. The name reflects the anatomic shape of the saddle-like prominence on the upper surface of the sphenoid bone in the middle cranial fossa, above which sits the pituitary gland.

What is roof of mouth called?

The palate is commonly called the roof of the mouth. It is divided into two parts: the bony hard palate in the front, and the fleshy soft palate (called the velum) in the back of the mouth. The hard palate is part of the oral cavity and the soft palate is part of the oropharynx.

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