The trigeminal cave is two layers of dura mater

Dura mater

The dura mater , or dura, is the outermost of the three layers of the meninges surrounding the brain and spinal cord. It is derived from Mesoderm. The other two meningeal layers are the pia mater and the arachnoid mater. The dura surrounds the brain and the spinal cord and is responsible for...

 which encase the trigeminal ganglion

Trigeminal ganglion

The trigeminal ganglion is a sensory ganglion of the trigeminal nerve that occupies a cavity in the dura mater, covering the trigeminal impression near the apex of the petrous part of the temporal bone.-Relations:It is somewhat crescentic in shape, with its convexity...

 near the apex of the petrous part of the temporal bone

Temporal bone

The temporal bones are situated at the sides and base of the skull, and lateral to the temporal lobes of the cerebrum.The temporal bone supports that part of the face known as the temple.-Parts:The temporal bone consists of four parts:* Squama temporalis...

. It is bounded by the dura overlying four structures:


1. The cerebellar tentorium (tentorium cerebelli

Tentorium cerebelli

The tentorium cerebelli or cerebellar tentorium is an extension of the dura mater that separates the cerebellum from the inferior portion of the occipital lobes.-Anatomy:...

) superolaterally

2. The lateral wall of the cavernous sinus

Cavernous sinus

The cavernous sinus , within the human head, is a large collection of thin-walled veins creating a cavity bordered by the temporal bone of the skull and the sphenoid bone, lateral to the sella turcica.-Contents:...

 superomedially

3. The clivus

Clivus

Clivus multrum is a type of composting toilet and the name of a company that markets this brandname of composting toilets. "Clivus" is Latin for incline or slope; "multrum" is a Swedish composite word meaning "compost room," thus a "Clivus Multrum" is an inclining compost room.- History :The first...

 medially

4. The posterior petrous face inferolaterally




It is named for Johann Friedrich Meckel, the Elder

Johann Friedrich Meckel, the Elder

Johann Friedrich Meckel the Elder was a German anatomist who was born in Wetzlar. He often has "the Elder" appended to his name to avoid confusion with his famous grandson Johann Friedrich Meckel , who was also an anatomist and often has "the Younger" included with his name...

.