what articulates with the frontal bone

The frontal bone forms the front of the skull and is divided into three parts:

• Squamous: This part is large and flat and forms the main region of the forehead.
• Orbital: This part lies inferiorly and forms the superior border of the orbit.
• Nasal: this part is smaller and articulates with the nasal bones and maxilla to contribute to the roof of the nose.

Full Answer

What cranial bones does the frontal bone articulate with?

The frontal bone articulates with 4 cranial bones: right & left parietals, the sphenoid, & ethmoid. What cranial bones does the parietal bone articulate with? The parietal bone articulates with 5 cranial bones: the frontal, occipital, temporal, sphenoid, & the opposite parietal.

What bone articulates with the anterior border of the lacrimal bone?

The anterior border of the lacrimal bone articulates with the frontal process of the maxilla, whereas the posterior border articulates with the orbital lamina of the ethmoid bone.

Which bones articulate with the parietal bone?

The parietal bone articulates with 5 cranial bones: the frontal, occipital, temporal, sphenoid, & the opposite parietal. Which bones articulate with the occipital?

What bones does the occipital bone articulate with?

The occipital articulate with 6 bones: the two parietals, two temporals, the sphenoid, & atlas. What cranial bones does the temporal bone articulate with? The temporal bone articulates with 3 cranial bones: a parietal, occipital, & sphenoid.

What is the frontal bone connected to?

Within the cranium, the frontal bone connects with the ethmoid bone inferiorly and medially. Posteriorly and inferiorly, the frontal bone meets the sphenoidal bone. As the frontal bone ascends posteriorly and laterally, it will meet the temporal bone, then finally the parietal at the top of the skull.

Which facial bone articulates with the frontal bone?

Orbital surface Anteriorly, between the orbital surfaces, the frontal bone articulates with the anterior portions of the nasal bones and frontal processes of the maxilla. A small, vertical midline plate, termed the nasal spine of the frontal bone, contributes to the nasal septum.

Does the frontal bone articulate with the maxilla?

[3] The maxilla connects with surrounding facial structures through four processes: alveolar, frontal, zygomatic and palatine. It articulates superiorly with the frontal bone, the zygomatic bone laterally, palatine bone posteriorly and with the upper teeth through the alveolar process inferiorly.

Does the sphenoid articulate with the frontal bone?

It is one of the bones that make up the orbit, in particular, forming the posterior surface. The articulations of the sphenoid are with the frontal, parietal, ethmoid, zygomatic, temporal, occipital, palatine, and vomer bones.

Which of the following does not articulate with the frontal bone?

So, the correct answer is 'Hyoid'

What connects the frontal and parietal bones?

Coronal suture: the suture between the frontal bone and the two parietal bones.

Does the frontal bone articulate with the temporal bone?

Each parietal articulates with the frontal bone, the opposite parietal (on top of the head), and the occipital, temporal, and sphenoid bones on each side of the skull.

Does the maxilla articulate with the mandible?

The two maxillary bones are fused at the intermaxillary suture, forming the anterior nasal spine. This is similar to the mandible (lower jaw), which is also a fusion of two mandibular bones at the mandibular symphysis. The mandible is the movable part of the jaw....MaxillaMeSHD008437TA98A02.1.12.001TA2756FMA97116 more rows

What does the sphenoid articulate with?

The sphenoid bone is a single bone, the body of which lies in the midline and articulates with the occipital bone and the temporal bones to form the base of the cranium.

Which structure is part of the frontal bone?

The structure of the frontal bone consists of three parts: squamous, orbital, and nasal. The squamous part of the frontal bone is the largest section.

What does the sphenoid bone connected to?

The sphenoid articulates with the frontal, parietal, ethmoid, temporal, zygomatic, palatine, vomer, and occipital bones and helps to connect the neurocranium to the facial skeleton.

Is vomer a facial bone?

The vomer is a small bone of the viscerocranium (or facial skeleton). It is located in the midsagittal plane of the skull, forming the posteroinferior part of the nasal septum, where it runs in an anteroinferior direction.

What is the frontal process of zygomatic bone?

Frontal process of zygomatic bone The frontal process features a bony tubercle on its orbital surface called the Whitnall's tubercle, which serves as an attachment site for the lateral palpebral ligament, suspensory ligament of the eye, and the aponeurosis of levator palpebrae superioris muscle.

What is maxilla and mandible?

The two maxillary bones are fused at the intermaxillary suture, forming the anterior nasal spine. This is similar to the mandible (lower jaw), which is also a fusion of two mandibular bones at the mandibular symphysis. The mandible is the movable part of the jaw. Maxilla.

Where is vomer bone?

nasal cavity1 Anatomy. The vomer is a small, thin, plow-shaped, midline bone that occupies and divides the nasal cavity. It articulates inferiorly on the midline with the maxillae and the palatines, superiorly with the sphenoid via its wings, and anterosuperiorly with the ethmoid.

How many articulations does the frontal bone have?

The frontal bone has a total of twelve articulations. Of these, only the two parietal bones are true cranial bones.

What is the frontal bone?

The frontal bone (os frontale) is an unpaired craniofacial bone that provides partial coverage of the brain and forms the structure of the forehead and upper casing of the eye sockets. It is composed of a squamous part, two orbital parts, and one nasal part. Muscles attached to and surrounding the frontal bone are essential for facial expression.

Why is frontal bone fracture rare?

Frontal Bone Fracture. Os frontale fractures are quite uncommon, primarily because the skull is thicker and sturdier than the smaller, often fragile, facial bones. However, any fracture of the frontal bone can cause permanent changes to our appearance if not treated by a maxillofacial expert.

What is the dip between the nasal bones and glabella called?

The frontal bone is thicker at the eyebrows and this is usually more pronounced in male skulls. Where nasal bones and glabella meet is called the nasion – this dip is easy to see and feel. A frontal view shows the horizontal line of upper orbit edges and glabella that indicate where the os frontal ends.

Where is the orbicularis oculi located?

The origin of the orbicularis oculi is the upper edge of the eye socket – the orbital part of the frontal bone. Muscle fibers of the orbicularis oculi blend with those of the frontalis muscle so when we raise our eyebrows or frown, the eye muscles also react.

Where is the glabella located?

The glabella – the part of the os frontale that lies between the eyebrows – ends at the top of the nasal bones. The frontal bone is thicker at the eyebrows and this is usually more pronounced in male skulls.

How much force is needed to fracture the frontal sinus?

The frontal bone sinus may be permanently lost when fractured; however, a force of up to 1500 ft-lb (2033 Newton-meters) is required. This is more than twice the force needed to fracture other facial bones; the equivalent of being punched in the face by Floyd ‘Money’ Mayweather or being host to a well-placed facial kick from a martial arts specialist.

Which bone articulates with the frontal process of the maxilla?

The anterior border of the lacrimal bone articulates with the frontal process of the maxilla, whereas the posterior border articulates with the orbital lamina of the ethmoid bone. The superior border articulates with the frontal bone, while the inferior border has complex relations since it is divided into two parts by the inferior edge ...

Which bone is anterior to the furrow?

Anterior to the furrow is a portion of the bone that forms part of the middle nasal meatus, whereas the part located posteriorly to the furrow articulates with the ethmoid bone, and in this way encloses some ethmoidal air cells.

What is the medial surface of the lacrimal bone?

Medial surface. The medial surface of the lacrimal bone faces the nasal cavity, which is why it is also called the nasal surface. There is notable longitudinal furrow on this surface, which corresponds to the posterior lacrimal crest of the orbital surface.

What is the crest of the orbit?

The crest divides the lateral surface of the bone into two portions: the anterior, which is related to the lacrimal sac and lacrimal canaliculi; and posterior, which is part of the posterior wall of the orbit.

What is the difference between inferior and superior border?

The superior border articulates with the frontal bone, while the inferior border has complex relations since it is divided into two parts by the inferior edge of the posterior lacrimal crest. The part of the inferior border that is placed posteriorly to the posterior lacrimal crest articulates with the orbital plate of the maxilla, whereas the part located anteriorly extends downward. This extension is called the descending process and it articulates with the lacrimal process of the inferior nasal concha, and in that way participates in enclosing the bony canal for the nasolacrimal duct.

What is the function of the lacrimal bone?

After this article, it will be clear that the function of the lacrimal bone is to support parts of the lacrimal apparatus, especially the lacrimal sac and lacrimal canaculi, while at the same time, it participates in forming of the medial wall of the orbit. Key facts.

What is the most fragile facial bone?

It was mentioned before that the lacrimal bone is the most fragile facial bone. Fractures of this bone often causes obstruction of the nasolacrimal duct. This increases pressure in the duct, and can cause injury to its walls. Increased pressure within the duct presents with watery and irritated eyes because the tears cannot drain normally.

How many bones are in the frontal bone?

The frontal bone articulates with 4 cranial bones: right & left parietals, the sphenoid, & ethmoid.

How many bones does the occipital articulate?

The occipital articulate with 6 bones: the two parietals, two temporals, the sphenoid, & atlas.

What are the two condylar processes?

The two lateral condylar processes-occipital condyles, are oval processes with convex surfaces, with one on each side of the foramen magnum. These articulate with depressions on the atlas, also known as atlantooccipital joint.

Which cranial bones are articulated by the ethmoid?

The ethmoid articulates with 2 cranial bones: the frontal & sphenoid.

Where is the lateral rim of the bony orbit of the eye?

The lateral rim of the bony orbit of the eye near the outer canthus of the eye.

Where is the midline point?

The midline point at the junction of the upper lip and the nasal septum. This is the point where the nose and the upper lip meet.