Gross Anatomy Skull and brain 1/21/10. Identify the Bone Mandible Maxilla Zygomatic Bone Temporal Bone Frontal Bone

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Gross Anatomy Skull and brain 1/21/10 Slide 2 Identify the Bone Mandible Maxilla Zygomatic Bone Temporal Bone Frontal Bone Slide 3 Identify the Landmark Mental Foramen Infraorbital Foramen Supraorbital Notch (Foramen) Slide 4 Identify the Bone Parietal Occipital Temporal Frontal Zygomatic Maxilla Mandible Sphenoid Slide 5 PEST OF 6 Parietal Ethmoid Sphenoid Temporal Occipital Frontal Slide 6 Identify the Landmark External Occipital Protuberance External Auditory Meatus Zygomatic Process (Temporal Bone) Temporal Process (Zygomatic Bone) Condylar Process (Mandible) Coronoid Process (Mandible) Ramus of the Mandible Mental Foramen Styloid Process Mastoid Process Slide 7 Identify the Bone Occipital Bone Temporal Bone Sphenoid Bone Frontal Bone Ethmoid Bone Slide 8 Identify the Landmark Hypoglossal Canal Jugular Foramen Carotid Canal Foramen Lacerum Foramen Spinosum Foramen Ovale Greater Wing of the Sphenoid Lesser Wing of the Sphenoid Optic Canal Crista Galli Cribiform plate Foramen Magnum Slide 9 More Foramina (and what runs through them) Optic Canal Optic Nerve (II) Ophthalmic artery Foramen Ovale Mandibular Nerve (V3) Accessory meningeal artery Foramen Spinosum Middle meningeal artery Carotid Canal Internal carotid artery Internal carotid nerve plexus Jugular Foramen Glossopharyngeal Nerve (IX) Vagus Nerve (X) Accessory Nerve (XI) Sigmoid sinus Posterior Meningeal Artery Hypoglossal Canal Hypoglossal Nerve (XII) Slide 10 Things we didnt see yet Superior Orbital Fissure Oculumotor nerve (III), Trochlear nerve (IV), Ophthalmic nerve (V1), Abducens nerve (VI), Superior ophthalmic vein Foramen Rotundum Maxillary nerve (V2) Internal Auditory Meatus Facial nerve (VII), Vestibulocochlear nerve (VIII), Labyrinthine artery SOF FR IAM Slide 11 OVALE: Otic ganglion (just inferior) V3 cranial nerve Accessory meningeal artery Lesser petrosal nerve Emissary veins Slide 12 Identify the Structure Cingulate Gyrus Corpus CallosumFornix Central Sulcus Parieto- Occipital Sulcus Septum Pellucidum Anterior Commisure Slide 13 Identify the Structure Cingulate Gyrus Corpus CallosumFornix Central Sulcus Parieto- Occipital Sulcus Septum Pellucidum Anterior Commisure Massa Intermedia Pineal Body Mammillary Body Hypophysial Stalk Fourth Ventricle Slide 14 Identify the Structure Primary Fissure Tonsil Nodule Slide 15 Cranial nerves Olfactory (I) Optic (II) Oculomotor (III) Trochlear (IV) Trigeminal (V) Abducens (VI) Facial (VII) Vestibulocochlear (VIII) Glossopharyngeal (IX) Vagus (X) Hypoglossal (XII) Accessory (XI) Slide 16 Mnemotechnics on cranial nerves "On Old Olympus Towering Tops, A Finn And German Viewed Some Hops": From I to XII: Olfactory Optic Occulomotor Trochlear Trigeminal Abducens Facial Auditory [or Vestibulocochlear] Glossopharyngeal Vagus Accessory [or Spinal root of the accessory] Hypoglossal Alternatively:"Oh! Oh! Oh! To Touch And Feel A Girls Vagina, Ah! Heaven!". Alternatively: "Oh, Oh, Oh, To Touch And Feel Virgin Girls Vaginas And Hymens". Make some new (that will be more stable in your own mental environment)! Slide 17 Again! Olfactory (I) Optic (II) Oculomotor (III) Trochlear (IV) Trigeminal (V) Abducens (VI) Facial (VII) Vestibulocochlear (VIII) Glossopharyngeal (IX) & Vagus (X) Hypoglossal (XII) Slide 18 Cranial nerves: sensory, motor or both "Some Say Marry Money But My Brother Says Big Brains Matter More" From I to XII: Sensory Motor Both Motor Both Sensory Both Motor Slide 19 Name the Function! Olfactory (I)- smell Optic (II)- sight Oculomotor (III)- eyelid & eyeball movement Trochlear (IV)- turns eye down/out (sup. obl.) Trigeminal (V)- chewing, face touch and pain Abducens (VI)- turns eye laterally (lat. rectus) Facial (VII)- controls most facial expressions, tears and saliva, taste (ant. 2/3) Vestibulocochlear (VIII)- hearing, equilibrium Glossopharyngeal (IX)- taste (post. 1/3), senses carotid BP Vagus (X)- senses aortic BP, slows heart rate, stimulates digestive organs taste Hypoglossal (XII)- controls tongue movement Slide 20 Cavernous sinus content O TOM CAT: O TOM are lateral wall components, in order from superior to inferior. CA are the components within the sinus, from medial to lateral. CA ends at the level of T from O TOM. See diagram. Occulomotor nerve (III) Trochlear nerve (IV) Ophthalmic nerve (V1) Maxillary nerve (V2) Carotid artery Abducent nerve (VI) T: When written, connects to the T of OTOM Slide 21 Name the Function! Accessory (XI)- controls trapezius and sternocleidomastoid Slide 22 Question Which structure carries fibers with motor and sensory information from the cortex? A. B. C. A B C Slide 23 Answer Which structure carries fibers with motor and sensory information from the cortex? A. B. C. A B C Slide 24 Question During a rare and complicated surgery, a doctor accidentally drops a jelly bean into the patients skull, where it becomes lodged in the marked structure. Which of the following symptoms will the patient display? A. Difficulty swallowing B. Difficulty chewing C. Drifting of eyes inward D. Partial loss of vision E. Diarrhea Slide 25 Answer During a rare and complicated surgery, a doctor accidentally drops a jelly bean into the patients skull, where it becomes lodged in the marked structure. Which of the following symptoms will the patient display? A. Difficulty swallowing B. Difficulty chewing C. Drifting of eyes inward D. Partial loss of vision E. Diarrhea Slide 26 Question During another procedure, the same careless doctor accidentally transects the nerve running through the marked hole. Which of the following symptoms will the patient display? A. Partial loss of taste sensation B. Tongue deviates left C. Tongue deviates right D. Left shoulder drop E. Right shoulder drop F. Diarrhea Slide 27 Answer During another procedure, the same careless doctor accidentally transects the nerve running through the marked hole. Which of the following symptoms will the patient display? A. Partial loss of taste sensation B. Tongue deviates left C. Tongue deviates right D. Left shoulder drop E. Right shoulder drop F. Diarrhea Slide 28 Question During a routine chin lift, Dr. 90210 accidentally transects the marked nerve. What symptom will his droopy-chinned patient have? A. Difficulty chewing B. Difficulty swallowing C. Tongue deviation D. Shoulder weakness E. Diarrhea Slide 29 Answer During a routine chin lift, Dr. 90210 accidentally transects the marked nerve. What symptom will his droopy-chinned patient have? A. Difficulty chewing B. Difficulty swallowing C. Tongue deviation D. Shoulder weakness E. Diarrhea Slide 30 Question Dr. Garner needs a picture in order to illustrate a nerve lesion during her lecture. She finds a student asleep and severs the indicated nerve. What sign did she need to take a picture of? A. Right-sided medial eye deviation B. Left-sided medial eye deviation C. Right-sided drooping eyelid D. Left-sided drooping eyelid E. Lower face paralysis Slide 31 Answer Dr. Garner needs a picture in order to illustrate a nerve lesion during her lecture. She finds a student asleep and severs the indicated nerve. What sign did she need to take a picture of? A. Right-sided medial eye deviation B. Left-sided medial eye deviation C. Right-sided drooping eyelid D. Left-sided drooping eyelid E. Lower face paralysis Slide 32 Question What is the gross brain structure indicated by the arrow? A. Caudate nucleus B. Globus Pallidus C. Hippocampus D. Putamen E. Thalamus Slide 33 Answer What is the gross brain structure indicated by the arrow? A. Caudate nucleus B. Globus Pallidus C. Hippocampus D. Putamen E. Thalamus Slide 34 Question From whence do most of the neurons in the marked structure come? A. Left red nucleus B. Right red nucleus C. Left pontine nuclei D. Right pontine nuclei E. Left lower limb F. Right lower limb G. Left fastigial nucleus H. Right fastigial nucleus Slide 35 Answer From whence do most of the neurons in the marked structure come? A. Left red nucleus B. Right red nucleus C. Left pontine nuclei D. Right pontine nuclei E. Left lower limb F. Right lower limb G. Left fastigial nucleus H. Right fastigial nucleus Slide 36 Question Which lobe of the cerebrum sits in the region of the skull shown? A. Frontal B. Parietal C. Temporal D. Occipital Slide 37 Answer Which lobe of the cerebrum sits in the region of the skull shown? A. Frontal B. Parietal C. Temporal D. Occipital

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