head neck i introskull
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Head neck i introskull - pptTRANSCRIPT
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Human Anatomy, Frolich, Head/Neck I: Introduction—the Skull
HEAD/NECK I: Introduction—The Skull
• Head function brainstorm
•Sensory/Motor Targets
•Overview: Head/Neck I-IV
•The two-oval skull
•Major features of the skull
•The base of the skull–The developmental view–The holes-out view
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Human Anatomy, Frolich, Head/Neck I: Introduction—the Skull
What all does the head do?[brainstorm]
Special Sense Foodway Airway Glands/Mucous
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Human Anatomy, Frolich, Head/Neck I: Introduction—the Skull
Nerve “targets” in head• SENSORYSpecial General
• MOTORMuscles Glands
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Human Anatomy, Frolich, Head/Neck I: Introduction—the Skull
Overview Head/Neck I-IV
• Head I: Skull—a framework to hang on– Overall organization of skull– Base of the skull—the hard part
• Developmental view• Cranial nerves out (to “targets”)
• Head II: Throat targets• Head III: Special Sense targets• Head IV: Cranial nerves in depth
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Human Anatomy, Frolich, Head/Neck I: Introduction—the Skull
Overall skull organization
Cerebral Hemisphere
Cerebellum
• Neurocranium• Base of skull• Middle ear• Jaw• Throat
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Human Anatomy, Frolich, Head/Neck I: Introduction—the Skull
Major features of the skull• Mastoid process• Styloid process• External auditory/
acoustic meatus
(ear opening)• Ear drum• Hyoid bone• Epiglottis• Thryroid cartilage• Cricoid cartilage• Tracheal rings
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Human Anatomy, Frolich, Head/Neck I: Introduction—the Skull
M&M, Fig. 7.3
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Human Anatomy, Frolich, Head/Neck I: Introduction—the Skull
Major features of the skull• Zygomatic arch• Ethmoid• Orbit• Nasal aperture• (choanae inside)
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Human Anatomy, Frolich, Head/Neck I: Introduction—the Skull
M&M, Fig. 7.2
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Human Anatomy, Frolich, Head/Neck I: Introduction—the Skull
Base of the skull—a developmental view
• Dermal bones in neurocranium
• Chondral bone
at base of skull– Olfactory capsule
(part of ethmoid)– Optic capsule
(part of sphenoid)– Otic capsule
(part of temporal– Occipital bone
(from somites
like C-verts)
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Human Anatomy, Frolich, Head/Neck I: Introduction—the Skull
Base of the skull—cranial nerves out• Ethmoid (olfactory)
I. Olfactory• Sphenoid (optic)
II. OpticIII. OculomotorIV. TrochlearVI. Abducens
• Temporal (otic)VIII. Acoustic/Auditory/
Vestibulocochlear• Face/Jaws
V. TrigeminalVII. Facial
• Throat (rest of body)IX GlossopharyngealX. VagusXI. Spinal AccessoryXII. Hypoglosal
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Human Anatomy, Frolich, Head/Neck I: Introduction—the Skull
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Human Anatomy, Frolich, Head/Neck I: Introduction—the Skull
What’s ahead?
• Throat (pharynx) targets: Head/Neck II
• Special Sensory targets: Head/Neck III
• Back to cranial nerves: Head/Neck IV