Fossa (anatomy)
In anatomy, a fossa (; pl.: fossae ( or ); from Latin 'ditch, trench') is a depression or hollow, usually in a bone, such as the hypophyseal fossa (the depression in the sphenoid bone). Some examples include: In the skull: Cranial fossae Anterior cranial fossa Middle cranial fossa Interpeduncular fossa Posterior cranial fossa Hypophyseal fossa Temporal bone fossae Mandibular fossa Jugular fossa Infratemporal fossa Pterygopalatine fossa Pterygoid fossa Lacrimal fossae Fossa for lacrimal gland Fossa for lacrimal sac Scaphoid fossa Condyloid fossa Rhomboid fossa In the mandible: Retromolar fossa In the torso: Fossa ovalis (heart) Infraclavicular fossa Pyriform fossa Substernal fossa Iliac fossa Ovarian fossa Paravesical fossa Coccygeal fossa Navicular fossae Navicular fossa of male urethra Fossa of vestibule of vagina Ischioanal fossa In the upper limb: Supraclavicular fossa Radial fossa On the scapula: Glenoid fossa Supraspinous fossa Infraspinous fossa Subscapular fossa Cubital fossa (a.k.a.