THE SKULL AND THE BONES OF THE SKULL 



Sagittal or interparietal suture 



Sutura sagittalis 



Longitudinal sulcus 

 Sulcus sagittalis 



*Eminentia cruciata :>, 

 "Eminentia cruciata 



Lateral sulcus 



Sulcus transversus 



Mastoid foramen 

 Foramen mastoideum 



Foramen magnum 



Sigmoid sulcus 

 Sulcus sigmoideus' 



Lambdoid or occipitoparietal 



suture 

 Sutura lambdoidea 



Internal occipital pro- 

 tuberance 

 Protuberantia 

 occipitalis interna 

 Foramen of occipital 



emissary vein 



Foramen emissarii 



occipitalis 



Vermian fossa (var.) 

 "Fossa vermiana (var.) 



Parietomastoid suture 

 Sutura parietomastoidea 



Occipitomastoid suture 

 Sutura occipitomastoidea 

 Mastoid portion of the tem- 

 poral bone 

 Pars mastoidea ossis tem- 



poralis 



Mastoid process 

 Processus mastoideus 



Jugular process 



Processus jugularis 



Jugular notch 

 Incisura jugularis 



Posterior condylar foramen 

 Canalis condyloideus 



, Occipital condyle 



Condylus occipitalis 



Basilar portion of the occipital bone 

 Pars basilaris ossis occipitalis 



FIG. 202. SKULL DIVIDED INTO AN ANTERIOR AND A POSTERIOR PORTION BY A FRONTAL SECTION 

 PASSING THROUGH THE MASTOID PROCESSES AND THE BASILAR PORTION OF THE OCCIPITAL 

 BONE. VIEW OF THE POSTERIOR PORTION OF THE CRANIAL CAVITY. THE DIVISION OF 

 THE LONGITUDINAL SULCUS INTO RIGHT LATERAL AND LEFT LATERAL SULCUS is SHOWN. 

 THE LATERAL SULCUS PASSES ON EITHER SIDE INTO THE SIGMOID SULCUS, WHICH TER- 

 MINATES IN THE JUGULAR FORAMEN. 



Cavum cranii cerebralis Cranial cavity. 



