Open head Injuries- a head injury in which the dura mater is breached.

You are watching: The most common cause of traumatic brain injury is quizlet

-Caused by missiles (many case e.g. bullets), blunt instruments (e.g. baseround bats), and also falls result in the head strikes a sharp object-High velocity missiles commonly reason even more damage than low vilocity-High velocity nearly always fatal; low velocity 20-40%
Closed head injury
- the meninges remajor intact and foreign substances carry out not enter the brain.Nonacceleration Injuries & Acceleration Injuries
the restrained head is struck by a moving object.-less serious than acceleration injuries-the major consequences are related to deformation of the skull by the influence of the object striking the skull.-impression trauma-ellipsoidal deformation
when unrestrained head is struck by a relocating object or when the moving head strikes stationary object-when TBI is resulted in by a sudden acceleration
or deceleration of the head-the brain and also brainstem frequently endure diffusage damages brought about by the activity inside the skull-2 develops of accelerations injuries: straight acceleration injuries and angular acceleration injuries
Shaken Baby Syndrome- a arsenal of brain injuries in infants and also toddlers led to by violent shaking-a significant brain injury resulting from forcetotally shaking an infant or toddler-leading reason of son abusage deaths in the United States-virtually all victims of SBS endure major wellness after-effects and at least ever 4 babies who are violently shaken dies from this form of son maltreatment
brought about by blows that strike the head off-center...rotating and relocating at an angle ameans from the suggest of influence.-the brain"s inertia keeps it at remainder when the head begins to move. Creates twisting forces in axial structures.-twisting and shearing
pressures tfinish to be focused at the borders between gray mater and also white matter (interior capsule, corpus callosum, and also brainstem)
acceleration-deceleration pressures have the right to have actually stretching, deformation, and shearing effects on neurons.

See more: An Evoke The Journey Of The Heroic Parent : Your Child'S

-Shearing and also stretching have the right to result in widespcheck out damage to the axons-Stretching axons transverses junctions between locations of various thickness, particularly at junctions between white and grey matter-2/3 of DAI lesions occur in areas wbelow grey and white issue meet-Commjust Affected Areas: brainstem, exceptional cerebellar peduncles, the corpus calloamount, and frontal and also tempdental lobes.
transient loss of consciousness and also post-traumatic amnesia of variable duration, in a lot of situations much less than 30 minutes-No opportunity for neuropatholigical observations-Tbelow is a continuum of brain injury in concussion ranging from: exceptionally mild cases
: dazed for a couple of secs without losing consciousness, and also the most severe cases: persistent neurological abnormalities and also structural changes that blfinish through DAI
unaware automatically after the injury and also either reprimary comatose or go into persistent vegetative state-Over 90% of patients through serious DAI never reacquire consciousness
cuts, bruises, twisting, and also shearing pressures in the brain cause bleeding (hemorrhage) and also accumulations of blood (hemotoma)tear blood vessels of meninges and brain surface
: Epidural, subdural, and subarachnoid hematomastear arteries within the brain: intracerebral hemaotomassqueeze the arteries within the brain: infraction (tissue death brought about by a regional absence of oxygen, as a result of an obstruction of the tconcerns blood supply)
buildup of blood between the dura mater and also the skull-Most are brought about by skull fractures (#1 cause motor auto accidents)-The magnitude of the symptoms relies on the location of the hemorrhage-Most widespread treatment: surgical evacuation
accumulaion of blood beneath
the dura mater above the arachnoid mater -Subdural hematomas are twice as widespread and also twice as deadly than the epidural hematomas-Most widespread causes: motor car accidents-Most common treatment: surgical evacuation-Chronic subdural hematomas are widespread in older patients and in patients via long-term alcoholism (enhanced hazard of falling)
led to by rupture of blood vessels within the subarachnoid
space-A prevalent consequence of TBI and also frequently are linked through subdural hematomas
led to by rupture of blood vessels inside the brain (intracerebral hemorrhage)-Normally construct in sucortical white mater, the basal ganglia, and also the brainstem
buildup of fluid-Fluid may accumulate in between the brain and also the skull, in the ventricles, or in the brain tconcerns, causing tworries to swell
the blood brain obstacle (BBB) is a dynamic interchallenge that sepaprices the brain from the circulatory system-protects the CNS from potentially harmful chemicals while regulating carry of important molecules and preserving a stable environment-TBI may disrupt the regulation of BBB, allowing generally excluded substances to enter brain tissue
A. Level of coma in the initially 24 hours; measured by Glasgow Coma ScaleB. The duration of the comaC. The duration of post traumatic amnesia (PTA)
score is acquired at the traditional 6 hours after injury might give an optimistic estimate of recovery-deeper and also much longer lasting coma is linked through poorer eventual recovery
the time following coma throughout which the patient is unable to save brand-new indevelopment and endure in memory-has the period of coma and extends until the patient"s memory for ongoing occasions becomes dependable, constant, and accurate-meacertain by Galveston Orientation and Amnesia
Test (GOAT)10 concerns to asses the patient"s capacity to remember and create biographic information
a medical range provided to assess people after a closed head injury based on cognitive and also behavior presentations as they emerge from coma-to carry out a more detailed estimate of brain injured patients; cognitive and also behavioral characteristics-a conventional of 8 categories-RLAS-R
included two