1. Identify on a-p head x-ray: 1.frontal sinus 2.ethmoid air cells 3.maxillary sinus 4.nasal septum 5.crista galli 6.inferior nasal concha 7.coronoid process of mandible 8.condylar process of mandible 9.superior orbital margin 10.floor of anterior cranial fossa 11.superior orbital fissure 12.sagittal suture

2. Key to a-p head x-ray: 1.frontal sinus 2.ethmoid air cells 3.maxillary sinus 4.nasal septum 5.crista galli 6.inferior nasal concha 7.coronoid process of mandible 8.condylar process of mandible 9.superior orbital margin 10.floor of anterior cranial fossa 11.superior orbital fissure 12.sagittal suture 1 11 22 4 5 6 7 8 3 10 9 11 12

3. Identify on lateral head x-ray: 1.coronal suture 2.lambdoid suture 3.sphenoid sinus 4.maxillary sinus 5.frontal sinus 6.sella turcica 7.bony palate 8.external auditory meatus 9.dens of axis 10.mastoid air cells 11.3 rd ventricle 12.posterior horn of lateral ventricle 13.anterior horn of lateral ventricle 14.inferior horn of lateral ventricle 15.interventricular foramen This person had air injected into the ventricles of the brain. That is an old thing to do.

4. Key to lateral head x-ray: 1.coronal suture 2.lambdoid suture 3.sphenoid sinus 4.maxillary sinus 5.frontal sinus 6.sella turcica 7.bony palate 8.external auditory meatus 9.dens of axis 10.mastoid air cells 11.3 rd ventricle 12.posterior horn of lateral ventricle 13.anterior horn of lateral ventricle 14.inferior horn of lateral ventricle 15.interventricular foramen 1 3 11 4 5 7 6 2 8 9 10 14 13 12 15

5. Identify on open mouth view: 1.dens of axis 2.body of axis 3.atlas 4.3 rd molar

6. Key to open mouth view: 1.dens of axis 2.body of axis 3.atlas 4.3 rd molar 1 4 2 3 3

7. Identify on angiogram of circle of Willis: 1.internal carotid a. 2.vertebral a. 3.basilar a. 4.anterior cerebral a. 5.middle cerebral a. 6.posterior cerebral a. 7.anterior communicating a. 8.posterior communicating a. 9.posterior inferior cerebellar a.

8. Key to circle of Willis: 1.internal carotid a. 2.vertebral a. 3.basilar a. 4.anterior cerebral a. 5.middle cerebral a. 6.posterior cerebral a. 7.anterior communicating a. 8.posterior communicating a. 9.posterior inferior cerebellar a. 1 2 3 4 5 8 7 6 9

9. Identify on MRI: 1.anterior horn of lateral ventricle 2.posterior horn of lateral ventricle 3.septum pellucidum 4.head of caudate nucleus 5.internal capsule 6.lentiform nucleus 7.thalamus 8.3 rd ventricle 9.longitudinal fissure 10.corpus callosum 11.superior sagittal sinus

10. Key to MRI: 1.anterior horn of lateral ventricle 2.posterior horn of lateral ventricle 3.septum pellucidum 4.head of caudate nucleus 5.internal capsule 6.lentiform nucleus 7.thalamus 8.3 rd ventricle 9.longitudinal fissure 10.corpus callosum 11.superior sagittal sinus 1 2 3 4 5 6 7 9 9 10 11 8

11. Identify on MRI: 1.genu 2.body of corpus callosum 3.splenium 4.thalamus 5.head of caudate nucleus 6.cerebellum 7.pons 8.midbrain 9.pituitary 10.optic chiasm 11.4 th ventricle 12.cerebellomedullary cistern 13.spinal chord 14.sphenoid sinus 15.frontal sinus 16.ethmoid air cells 17.clivus 18.dens of axis

12. Key to MRI: 1.genu 2.body of corpus callosum 3.splenium 4.thalamus 5.head of caudate nucleus 6.cerebellum 7.pons 8.midbrain 9.pituitary 10.optic chiasm 11.4 th ventricle 12.cerebellomedullary cistern 13.spinal chord 14.sphenoid sinus 15.frontal sinus 16.ethmoid air cells 17.clivus 18.dens of axis 1 3 2 4 5 6 7 8 9 10 11 12 14 13 15 16 17 18

13. Identify on MRI : 1.optic nerve 2.medial rectus m. 3.lateral rectus m. 4.cerebral peduncles 5.cerebral aqueduct 6.(superior) colliculi 7.temporal lobe

14. Key to MRI : 1.optic nerve 2.medial rectus m. 3.lateral rectus m. 4.cerebral peduncles 5.cerebral aqueduct 6.(superior) colliculi 7.temporal lobe 1 3 2 4 4 5 6 6 7