Last updated 27th November 2017
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Aberdeen MBChB learning guide links Year 2 Systems II (Part 1) ENT Pg 24
Aberdeen MBChB learning guide links Year 2 Systems II (Part 1) ENT Pg 24 Understand briefly the various structures that go to form the base of the skull
Aberdeen MBChB learning guide links Year 2 Systems II (Part 1) ENT Pg 24 Understand briefly the various structures that go to form the base of the skull Describe the internal auditory meatus and its contents
Aberdeen MBChB learning guide links Year 2 Systems II (Part 1) ENT Pg 24 Understand briefly the various structures that go to form the base of the skull Describe the internal auditory meatus and its contents Year 2 Systems II (Part 1) Neuro
Aberdeen MBChB learning guide links Year 2 Systems II (Part 1) ENT Pg 24 Understand briefly the various structures that go to form the base of the skull Describe the internal auditory meatus and its contents Year 2 Systems II (Part 1) Neuro Disorders of cranial nerves lecture
Aberdeen MBChB learning guide links Year 2 Systems II (Part 1) ENT Pg 24 Understand briefly the various structures that go to form the base of the skull Describe the internal auditory meatus and its contents Year 2 Systems II (Part 1) Neuro Disorders of cranial nerves lecture Pg 44 Describe the anatomy and function of the 12 cranial nerves
Aberdeen MBChB learning guide links Year 2 Systems II (Part 1) ENT Pg 24 Understand briefly the various structures that go to form the base of the skull Describe the internal auditory meatus and its contents Year 2 Systems II (Part 1) Neuro Disorders of cranial nerves lecture Pg 44 Describe the anatomy and function of the 12 cranial nerves Pg 48 Describe the dural coverings of the brain and opening of the skull
Scope There is an enormous amount which could be learned about the skull base
Scope There is an enormous amount which could be learned about the skull base In the following slides I will mention some things which I think would help medical students pass exams
Scope There is an enormous amount which could be learned about the skull base In the following slides I will mention some things which I think would help medical students pass exams First, I will show you an intricately-labelled diagram which I stumbled across on the internet
Scope There is an enormous amount which could be learned about the skull base In the following slides I will mention some things which I think would help medical students pass exams First, I will show you an intricately-labelled diagram which I stumbled across on the internet Please don t learn it, it is only for amusement!
Limitations Limitations of the models I have put 3D models in the online PDFs for my other 3D tutorials. Unfortunately, the skull base model is too complicated for conversion, therefore only the text notes are available online.
What are the openings of the skull? Selected list page 1 One foramen magnum cervicomedullary junction, two vertebral arteries important for all nervous functions under the head
What are the openings of the skull? Selected list page 1 One foramen magnum cervicomedullary junction, two vertebral arteries important for all nervous functions under the head Two optic canals optic nerve II for vision
What are the openings of the skull? Selected list page 1 One foramen magnum cervicomedullary junction, two vertebral arteries important for all nervous functions under the head Two optic canals optic nerve II for vision Two ovalia mandibular branch of trigeminal nerve V3 needle entry point for trigeminal nerve anaesthesia
What are the openings of the skull? Selected list page 1 One foramen magnum cervicomedullary junction, two vertebral arteries important for all nervous functions under the head Two optic canals optic nerve II for vision Two ovalia mandibular branch of trigeminal nerve V3 needle entry point for trigeminal nerve anaesthesia Two rotunda maxillary branch of trigeminal nerve V2 numb patch on face after trauma
What are the openings of the skull? Selected list page 1 One foramen magnum cervicomedullary junction, two vertebral arteries important for all nervous functions under the head Two optic canals optic nerve II for vision Two ovalia mandibular branch of trigeminal nerve V3 needle entry point for trigeminal nerve anaesthesia Two rotunda maxillary branch of trigeminal nerve V2 numb patch on face after trauma Two jugular sigmoid sinuses go through this to become the two internal jugular veins the main venous outflow tracts for blood from the brain
What are the openings of the skull? Selected list page 2 The cribriform plate many small holes for the olfactory receptor neurones anosmia after trauma)
What are the openings of the skull? Selected list page 2 The cribriform plate many small holes for the olfactory receptor neurones anosmia after trauma) Two superior orbital fissures oculomotor III, trochlear IV, ophthalmic V1 and abducens VI pupil dilatation, drooping eyelid, eye movement syndrome and forehead sensation
What are the openings of the skull? Selected list page 2 The cribriform plate many small holes for the olfactory receptor neurones anosmia after trauma) Two superior orbital fissures oculomotor III, trochlear IV, ophthalmic V1 and abducens VI pupil dilatation, drooping eyelid, eye movement syndrome and forehead sensation Two internal auditory meatii facial VII and vestibulocochlear VIII unilateral sensorineural deafness in vestibular schwannoma)
What are the openings of the skull? Selected list page 2 The cribriform plate many small holes for the olfactory receptor neurones anosmia after trauma) Two superior orbital fissures oculomotor III, trochlear IV, ophthalmic V1 and abducens VI pupil dilatation, drooping eyelid, eye movement syndrome and forehead sensation Two internal auditory meatii facial VII and vestibulocochlear VIII unilateral sensorineural deafness in vestibular schwannoma) Two stylomastoid facial nerves VII
What are the openings of the skull? Selected list page 2 The cribriform plate many small holes for the olfactory receptor neurones anosmia after trauma) Two superior orbital fissures oculomotor III, trochlear IV, ophthalmic V1 and abducens VI pupil dilatation, drooping eyelid, eye movement syndrome and forehead sensation Two internal auditory meatii facial VII and vestibulocochlear VIII unilateral sensorineural deafness in vestibular schwannoma) Two stylomastoid facial nerves VII Two carotid canals internal carotid artery
What are the openings of the skull? Selected list page 2 The cribriform plate many small holes for the olfactory receptor neurones anosmia after trauma) Two superior orbital fissures oculomotor III, trochlear IV, ophthalmic V1 and abducens VI pupil dilatation, drooping eyelid, eye movement syndrome and forehead sensation Two internal auditory meatii facial VII and vestibulocochlear VIII unilateral sensorineural deafness in vestibular schwannoma) Two stylomastoid facial nerves VII Two carotid canals internal carotid artery Two spinosa middle meningeal artery artery may be damaged further up, deep to the pteryon
What are contents of the interal auditory canal? Facial nerve VII
What are contents of the interal auditory canal? Facial nerve VII Vestibulocochlear nerve VIII
What structures form the skull base? Bones Occipital bone
What structures form the skull base? Bones Occipital bone Temporal bone
What structures form the skull base? Bones Occipital bone Temporal bone Sphenoid bone
What structures form the skull base? Bones Occipital bone Temporal bone Sphenoid bone Frontal bone
What structures form the skull base? Bones Occipital bone Temporal bone Sphenoid bone Frontal bone Ethmoid bone
What structures form the skull base? Bones Occipital bone Temporal bone Sphenoid bone Frontal bone Ethmoid bone Maxillary and palatine if viewed from below
Picture from http://aofoundation.org
More detailed picture from Clemente Zoom for detail
Name the channels for as many of the following nerves as you can
Acknowledgement of references / sources AO Foundation Surgery reference https: //www2.aofoundation.org/wps/portal/surgery My favourite anatomy book. Carmine D Clemente. Anatomy: A Regional Atlas of the Human Body (third edition). Baltimore Munich: Urban & Schwarzenberg, 1987. Encyclopedia Britannica www.britannica.com Dr H Jastrow s webpage http://www.uni-mainz.de/fb/medizin/anatomie/ workshop//skullbase.html
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