Head Ch. 23 Head and Face. Anatomy of Head 28 bones Mandible is the only movable bone Suture is...
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Transcript of Head Ch. 23 Head and Face. Anatomy of Head 28 bones Mandible is the only movable bone Suture is...
Ch. 23 Head and Face
HeadCh. 23 Head and FaceAnatomy of Head28 bonesMandible is the only movable boneSuture is where two bones come together
Brain Facts3 poundsRequires 20% O2 and 15% blood supplyBrain cells grow until 18Divided into lobesConnects to spinal cordCerebrospinal fluidLeft brain controls right side of body, vice versa
Brain LobesFrontal: voluntary muscle movement, emotion, eye movementParietal: SensationOccipital: VisionTemporal: Hearing, speechCerebellum: equilibrium, muscle, reflexes
Cerebellum: athletic brain4Scalp InjuriesUsually bleeds more Could look worse than it isTreat and control bleedingContinue with head injury assessment to rule out other injuries
Skull FracturesCaused by a severe blow when headgear is not worn S/S: bleed or CSF draining from ear or noseBattle signRaccoon eyes
ConcussionsMild brain injuryMore than 300,000 each year62,000 in high schoolSeveral different grading systemsAVPUSCAT card
ConcussionsSigns and SymptomsCognitive: awareness of time and space, consciousnessTypical: headache, dizziness, nausea, double visionPhysical: loss of consciousness, poor balance, seizures, vomitingRetrograde and antegrade amnesiaConcussionsReturn to participationNo activity, complete rest until asymptomaticLight aerobic exerciseSport-specific trainingNon-contact training drillsFull-contact training drills after clearanceGame playHemorrhageBleeding within the skull; forms hematomaSubdural: between brain and dura materEpidural: between skull and dura materIntracranial: pooling of blood within brain
Secondary Impact SyndromeRapid swelling and herniation of the brain after a second head injury that occurs before the symptoms of a previous injury has been resolvedSecond impact could be minorThis is why it is really important to fully clear an athlete after a head injury