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
- Hypophyseal fossa
- Temporal bone fossae
- Infratemporal fossa
- Pterygopalatine fossa
- Pterygoid fossa
- Lacrimal fossae
- Scaphoid fossa
- Condyloid fossa
- Rhomboid fossa
In the mandible:
In the torso:
- Fossa ovalis (heart)
- Infraclavicular fossa
- Pyriform fossa
- Substernal fossa
- Iliac fossa
- Ovarian fossa
- Paravesical fossa
- Coccygeal fossa
- Navicular fossae
- Ischioanal fossa
In the upper limb:
- Supraclavicular fossa
- Radial fossa
- On the scapula:
- Cubital fossa (a.k.a. Antecubital fossa or chelidon)
- Olecranon fossa
In the lower limb:
