What is inferior view of skull?
In the central part of the skull is the sphenoid bone. In this view, the foramen ovale and foramen spinosum can be seen. Posterior to the sphenoid bone in the midline is the clivus, which ends at the anterior margin of the foramen magnum.
What does inferior view mean?
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.
Which bone is most inferior?
The coccyx (cocs-ICKS), or tailbone, is the most inferior portion of the human vertebral column.
What is inferior orbital fissure?
The inferior orbital fissure (IOF) lies in the floor of the orbit inferior to the superior orbital fissure and it is bounded superiorly by the greater wing of sphenoid, inferiorly by maxilla and orbital process of palatine bone and laterally by the zygomatic bone. It opens into posterolateral aspect of orbital floor.
Where is sphenoid?
An unpaired bone located in the cranium (or skull), the sphenoid bone, also known as the “wasp bone,” is located in the middle and toward the front of the skull, just in front of the occipital bone.
What is inferior in anatomy and physiology?
Inferior (or caudal) describes a position below or lower than another part of the body proper; near or toward the tail (in humans, the coccyx, or lowest part of the spinal column). The pelvis is inferior to the abdomen. Lateral describes the side or direction toward the side of the body.
What passes through the forforamen rotundum?
foramen rotundum. A round opening in anterior medial edge of the greater wing of the sphenoid bone, just below the superior orbital fissure, through which the maxillary division of the trigeminal nerve (CN V) passes.
What is the average diameter of the foramen rotundum?
The average diameter of the foramen rotundum in adults is 3.55 mm. The foramen rotundum allows the passage of the maxillary nerve (V 2 ), a branch of the trigeminal nerve. It also allows the passage of the artery of the foramen rotundum and an emissary vein. Foramen is the Latin term designating a hole-like opening.
What nerve passes through the foramen rotundum?
The Maxillary Nerve (V2) The maxillary nerve (V2) passes through the foramen rotundum and into the infraorbital canal, where, at the pterygopalatine fossa, it branches into the pterygopalatine ganglion, with parasympathetic and sensory branches to the paranasal sinuses.
What is the function of the foramen rotunda?
The mean area of the foramina rotunda is not considerable, which may suggest that they play a minor role in the dynamics of blood circulation in the venous system of the head. The foramen rotundum evolves in shape throughout the fetal period, and from birth to adolescence.
