Does anything go through foramen lacerum?

The artery of pterygoid canal, the nerve of pterygoid canal and some venous drainage pass through the foramen lacerum. Furthermore, one of the terminal branches of the ascending pharyngeal artery (itself a branch of the external carotid artery) passes through the foramen lacerum.

Which bones form the foramen lacerum?

The foramen lacerum is formed by the pterygoid process of the sphenoid bone anteriorly, petrous apex of the temporal bone posterolaterally, and the clival part of the occipital bone inferomedially.

Which cranial nerve passes through the foramen lacerum?

greater petrosal nerve
The two nerves that pass from the foramen lacerum are the greater petrosal nerve, which represents the pre-ganglionic parasympathetic fibers, and the deep petrosal nerve which, representing the post-ganglionic sympathetic fibers.

What does the foramen lacerum contain?

The foramen lacerum transmits many structures, including: the artery of the pterygoid canal. the recurrent artery of the foramen lacerum, which supplies the internal carotid plexus. the nerve of pterygoid canal.

What runs through foramen Spinosum?

The foramen spinosum (plural: foramina spinosa) is located in the posteromedial part of greater wing of sphenoid bone posterolateral to foramen ovale which connects the middle cranial fossa with the infratemporal fossa. It transmits the middle meningeal artery, middle meningeal vein, and (usually) the nervus spinosus.

What is the weakest part of the skull?

pterion
Clinical significance The pterion is known as the weakest part of the skull. The anterior division of the middle meningeal artery runs underneath the pterion. Consequently, a traumatic blow to the pterion may rupture the middle meningeal artery causing an epidural haematoma.

Why is it called foramen lacerum?

The foramen lacerum (plural: foramina lacera) is a triangular opening located in the middle cranial fossa formed by the continuation of the petrosphenoidal and petroclival fissures. Thus, it is a gap between bones, alternatively termed the sphenopetroclival synchondrosis, rather than a true foramen within a bone 2.

What goes through each foramen in skull?

The human skull has numerous foramina through which cranial nerves, arteries, veins, and other structures pass. The skull bones that contain foramina include the frontal, ethmoid, sphenoid, maxilla, palatine, temporal, and occipital lobes.

Which cranial nerve passes through the foramen ovale of the skull?

mandibular nerve
The foramen ovale transmits the mandibular nerve, accessory meningeal artery, lesser petrosal nerve and the emissary veins.

Is foramen lacerum in the middle cranial fossa?

What is the strongest part of your skull?

mandible
The fourteen bones at the front of your skull hold your eyes in place and form your facial features. Your mandible, or jawbone, is the largest, strongest bone in your face.

Where is the softest part of your skull?

The pterion is known as the weakest part of the skull. The anterior division of the middle meningeal artery runs underneath the pterion.

Where is the pterygoid canal located in the skull?

The pterygoid canal (also vidian canal) is a passage in the sphenoid bone of the skull leading from just anterior to the foramen lacerum in the middle cranial fossa to the pterygopalatine fossa . The pterygoid canal runs through the medial pterygoid plate of the sphenoid bone to the back wall of the pterygopalatine fossa .

Where does the foramen lacerum enter the pterygoid canal?

Foramen lacerum. The internal carotid artery passes along its superior surface but does not traverse it. The greater petrosal nerve enters from the posterolateral aspect and leaves anteriorly as the nerve of the pterygoid canal.

Where is the foramen lacerum located in the skull?

Foramen lacerum. The foramen lacerum ( Latin: lacerated piercing) is a triangular hole in the base of skull, located between the sphenoid, the apex of the petrous temporal and the basilar part of the occipital .

Is the internal carotid artery through the foramen lacerum?

The internal carotid artery does not travel through foramen lacerum. The segment of the internal carotid artery that travels above foramen lacerum is called the lacerum segment. The artery of pterygoid canal, the nerve of pterygoid canal and some venous drainage pass through the foramen lacerum.