What goes through the 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 part of skull does middle meningeal artery cross?

sphenoid bone
It ascends between the sphenomandibular ligament and the lateral pterygoid muscle, and between the two roots of the auriculotemporal nerve to the foramen spinosum of the sphenoid bone, through which it enters the cranium; it then runs forward in a groove on the great wing of the sphenoid bone, and divides into two …

What foramen does the accessory meningeal artery pass through?

foramen ovale
The accessory meningeal artery is a branch of the maxillary artery but can also branch from the middle meningeal artery. The artery passes upwards through the foramen ovale to supply the trigeminal ganglion and the dura mater of Meckel cave and the middle cranial fossa.

Where does middle meningeal artery arise?

maxillary artery
The middle meningeal artery normally arises from the first or mandibular segment of the maxillary artery, just behind the condylar process of the mandible, and enters the skull through the foramen spinosum (see Fig. 2-10A–H).

What does the middle meningeal artery supply?

The middle meningeal artery provides blood to the dura mater through and through its branching arteries also supplies the periosteum of the inner aspects of the cranial bones.

What passes through the Vidian Canal?

It transmits the nerve of pterygoid canal, (Vidian nerve), the artery of the pterygoid canal (Vidian artery), and the vein of the pterygoid canal (Vidian vein).

What is middle meningeal artery embolization?

Middle meningeal artery embolization is a minimally invasive angiography procedure completed with use of fluoroscopy. Access is obtained through the femoral or radial artery and a catheter is advanced to the MMA.

What is the middle meningeal layer?

Three layers of membranes known as meninges protect the brain and spinal cord. The delicate inner layer is the pia mater. The middle layer is the arachnoid, a web-like structure filled with fluid that cushions the brain. The tough outer layer is called the dura mater.

What accompanies the middle meningeal artery?

The middle meningeal artery (MMA) normally branches off the maxillary artery, which is an extension of the external carotid artery. The artery will then travel through the foramen spinosum, which is posterolateral from the foramen ovale, to supply blood to the dura mater.

Where is the meningeal artery located?

Meningeal arteries are found in the outer portion of the dura; they supply it with blood. They also help to supply blood to adjacent skull and have some anastomoses with cerebral arteries. The skull has grooves, or sulci, for the meningeal vessels.

Is the middle meningeal artery extracranial?

The first extracranial segment of the MMA is from its origin to its entry into the foramen spinosum. The more anterior the origin of the MMA is, the more oblique backward is the extracranial segment. At the level of the foramen spinosum, the artery bends anteriorly and laterally to follow the temporal fossa.

What artery passes through optic canal?

The optic canal is a very important structure due to the structures that pass through this canal, mainly the optic nerve and the ophthalmic artery.