Fossa hypophyseos
Encyclopedia
In the sphenoid bone
, behind the chiasmatic groove
is an elevation, the tuberculum sellae
; and still more posteriorly, a deep depression, the sella turcica
, the deepest part of which lodges the hypophysis cerebri and is known as the fossa hypophyseos (or fossa hypophysialis).
Sphenoid bone
The sphenoid bone is an unpaired bone situated at the base of the skull in front of the temporal bone and basilar part of the occipital bone.The sphenoid bone is one of the seven bones that articulate to form the orbit...
, behind the chiasmatic groove
Chiasmatic groove
The superior surface of the body of the sphenoid bone is bounded behind by a ridge, which forms the anterior border of a narrow, transverse groove, the chiasmatic groove , above and behind which lies the optic chiasma of cranial nerve 2 .The groove ends on either side in the optic foramen, which...
is an elevation, the tuberculum sellae
Tuberculum sellae
In the sphenoid bone, behind the chiasmatic groove is an elevation, the tuberculum sellæ .-External links:*...
; and still more posteriorly, a deep depression, the sella turcica
Sella turcica
-External links:*...
, the deepest part of which lodges the hypophysis cerebri and is known as the fossa hypophyseos (or fossa hypophysialis).
External links
- Diagram at uni-mainz.d - "Cranial Fossae: Diaphragma Sellae"