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Advance Sports Medicine HEAD Injuries CHAPTER 25.

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Presentation on theme: "Advance Sports Medicine HEAD Injuries CHAPTER 25."— Presentation transcript:

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2 Advance Sports Medicine HEAD Injuries CHAPTER 25

3 Vocabulary:  Encephalon  Meninges   Cerebrospinal fluid   Automatism   Posttraumatic amnesia   Retrograde amnesia   Intracranial hemorrhage   Tinnitus   Rhomberg’s sign   Cerebral hyperemia   Cerebral edema   Occlusion  Malocclusion  Epistaxis  Cauterization  hyphemia  Hematoma auris  Nystagmus  Keloid  Photophobia  External Otitis  Orbital Hematoma

4 ANATOMY--  HEAD-bones of skull  scalp is the first line of defense  Bones of the skull makes up the second line of defense for the brain  28 bones in the skull  Frontal, temporal, parietal, occipital  MENINGES- skull matter  Protective coverings that inclose the spinal cord and the brain. Their primary functions are to channel forces away from the vital structures and provide a passage way for blood vessels, lymphatic vessels and nerves

5 The meninges  Dura mater –Superficial lines against the skull. It is the toughest and contains blood vessels and nerves  Arachnoid mater –Netlike structure, forming a web over the brain  Pia mater –Deepest and follows all the irregular contours of the brain

6 MECHANISM OF INJURY  Direct blow- –thin bone produces local trauma in bending/tensile stress inner table –Thick bone non trauma local in bending/tensile stress with peripheral out bending/tensile stress with peripheral out bending outer table –Size of impact smaller more serious than large surface area  Coup injury- a forceful blow to the resting moveable head usually produces maximal brain injury beneath the point of cranial impact  Contra coup injury- when a moving head collides with a nonmoving object producing maximal brain injury to the opposite site of cranial impact

7 Cranial Nerves  I Olfactory  II Optic  III Oculomotor  IV Trochlear  V Trigeminal  VI Abducens  VII Facial  VIII Vestibulocochlear  IX Glossopharyngeal  X Vagus  XI Accessory  XII Hypoglossal

8 Cranial Nerves  I Olfactory= sense of smell  II Optic= vision  III Oculomotor=eyelid and eye movement (up and down)  IV Trochlear= moves eye down and laterally  V Trigeminal=chewing, face & mouth touch/pain  VI Abducens= abducts the eye  VII Facial= facial expressions, secretion of tears & saliva, taste  VIII Vestibulocochlear (auditory)= hearing equillibrium  IX Glossopharyngeal= taste, swallowing, senses carotid BP  X Vagus= aahh, slows HR, aortic BP, taste  XI Spinal Accessory= moves trapezius & sternocleidomastoid  XII Hypoglossal= tongue movements

9 Websites  Cranial Nerves – Introduction Cranial Nerves – Introduction  Neuroscience for Kids - Cranial Nerves Neuroscience for Kids - Cranial Nerves

10 Injuries to the Head  Subdural Hematoma –Involves veins in the brain. – Usually tear the bridge between the dura mater to the brain. –Contra coup type of an injury. –Hemorrhage is slow and should be watched very closely for 24 hours  Epidural hematoma –Common with a temporal skull fx. –Artery- rapid bleeding –Brief period of unconsciousness followed by consciousness to coma to death within a period of 15-30 min.  Intracerebral bleeding –Bleeding within the brain itself –Deterioration of neurological function occurs rapidly  Skull fractures –Severe blow to head –Difficult to determine even by x-ray –Watch for intracranial bleeding signs

11 Facial Injuries  Jaw fracture:  Second to all facial fracture  Most common fx near jaws frontal angle  Deformity or malocclusion  Pain when biting down  Bleeding around teeth  Lower lip numbness  Cheekbone fx. (zygomatic)  Around the eye, 3 rd most common facial injury  Loss of vision  Teeth injuries  If dislocated: replace in socket  Enamel is the hardest substance within the body

12 Facial injuries cont.  Fractured nose:  Most common fx. To the face  RX: control bleeding- x-ray –Have athlete sit upright –Cold compress –Direct pressure to nostril  Cauliflower ear: hematoma auris  Cold compress  Possible drain and casted  Wear protective ear covering

13 Eye injuries  Symptoms indicating serious eye injury:  Blurred vision not clearing with blinking  Loss of all or part of the visual field  Pain that is sharp, stabbing, or throbbing  Double vision after vision  RX: cover both eyes but put no pressure on the eye  Transport to hospital  Blowout fracture  Hemorrhage occurs around the inferior aspect margins of the eye  Diplopia  Pain while moving eye  Retinal detachment  More common with myopia (nearsightedness)  Seeing specks floating before the eye  Flashes of light  Blurred vision  Curtain falling over the field of vision


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