Popular tips

What is inferior view of skull?

What is inferior view of skull?

Inferior nuchal line (inferior view) On the outer surface of the occipital bone is the inferior nuchal line. This is a small ridge of bone that projects from the posterior portion of the occipital bone.

What is an inferior view in anatomy?

Inferior or caudal – away from the head; lower (example, the foot is part of the inferior extremity). Anterior or ventral – front (example, the kneecap is located on the anterior side of the leg). Medial – toward the midline of the body (example, the middle toe is located at the medial side of the foot).

What is inferior view mean?

Inferior: In anatomy, below or toward the feet. As opposed to superior. For a more complete listing of terms used in medicine for spatial orientation, please see the entry to “Anatomic Orientation Terms”.

What is the superior view of the skull?

Superior View (norma verticalis – fig. 313) This aspect of the skull is traversed by three sutures. (1) The coronal suture is placed between the serrated posterior edge of the frontal bone and the anterior borders of the parietal bones. From the median plane it passes downwards and forwards across the cranial vault.

Is the temporal bone inferior?

The inferior temporal line also lies on the parietal bone, and is the site of attachment of the temporal muscle. Located near the lower edge is a gap, the external auditory meatus, which leads inward to parts of the ear.

How many bones are in the cranium?

The cranium is not a single bone, but many. They are joined by sutures, rather than joints, which allow for very little movement. The human cranium consists of 21 bones and is subdivided into the neurocranium or brain case, which surrounds and protects the brain, and the splanchnocranium,…

What is the anterior bone of the skull?

The skull (cranium) is divided into 2 main functional parts: neurocranium and viscerocranium. The major anterior skull bones include: Frontal bone, Mandible, Maxilla, Nasal bone, Parietal bone, Temporal bone, and Zygomatic bone. The foramen of the anterior skull include (top to bottom): Supraorbital foramen,…

What are the structures of the skull?

The skull is composed of two parts: the cranium and the mandible. The skull forms the anterior most portion of the skeleton and is a product of encephalization, housing the brain, many sensory structures (eyes, ears, nasal cavity), and the feeding system.

What are the foramina of the skull?

foramina) is an opening that allows the passage of structures from one region to another. In the skull base, there are numerous foramina that transmit cranial nerves, blood vessels and other structures – these are collectively referred to as the cranial foramina.

What is the most inferior bone of the skull?

sphenoid bone
On the inferior aspect of the skull, each half of the sphenoid bone forms two thin, vertically oriented bony plates. These are the medial pterygoid plate and lateral pterygoid plate (pterygoid = “wing-shaped”).

What are the 3 cranial fossa?

The floor of the cranial cavity is divided into three distinct depressions. They are known as the anterior cranial fossa, middle cranial fossa and posterior cranial fossa. Each fossa accommodates a different part of the brain.

What does socially inferior mean?

: of little or less importance or value. They were considered a socially inferior group.

What is the inferior view of the heart?

The inferior tip of the heart, the apex, lies just to the left of the sternum between the junction of the fourth and fifth ribs near their articulation with the costal cartilages. The right side of the heart is deflected anteriorly, and the left side is deflected posteriorly.

What is the difference between distal and inferior?

As adjectives the difference between inferior and distal is that inferior is of lower quality while distal is (anatomy|geology) remote from the point of attachment or origin; as, the distal end of a bone or muscle.

Is dorsal a top or bottom?

The dorsal (from Latin dorsum ‘back’) surface of an organism refers to the back, or upper side, of an organism. If talking about the skull, the dorsal side is the top. The ventral (from Latin venter ‘belly’) surface refers to the front, or lower side, of an organism.

How many foramina are present in the skull?

21 foramina
A foramen (plural: foramina ) is an opening inside the body that allows key structures to connect one part of the body to another. The skull bones that contain foramina include the frontal, ethmoid, sphenoid, maxilla, palatine, temporal, and occipital. There are 21 foramina in the human skull.

What is the function of foramina in the skull?

Skull and Meninges The foramina in the base of the skull allow major nerves and blood vessels to course through the skull. Pressure, traction, and masses can damage structures traversing these small spaces that snugly confine the structures.