anatomy clinical views exam 3 - CLINICAL VIEWS CHAPTER 15...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
CLINICAL VIEWS CHAPTER 15 EPIDURAL AND SUBDURAL HEMATOMAS - Hemorrhage: any loss of blood from a vessel - Hematoma: a pooling of blood outside of a vessel - Epidural Hematoma: a pool of blood that forms in the epidural space of the brain o The epidural space is normally just a potential space, but when it fills with blood it becomes an actual space o Causes adjacent brain tissue to become distorted and compressed o Can cause severe neurological injury or even death o Usually caused by a severe blow to the side of the head - Subdural Hematoma: o A hemorrhage that occurs in the subdural space between the dura mater and the arachnoid o Caused by fast or violent rotational motion of the head Can be caused by roller coasters BRAIN INJURIES - Two common types of brain injury: o Concussion Most common brain injury Temporary, abrupt loss of consciousness after a blow to the head or the sudden stop of a moving head Leaves no obvious physical defect or sign of injury to the brain Symptoms may include: headache, drowsiness, lack of concentration, confusion, and amnesia Multiple concussions have a cumulative effect In extreme examples may cause Parkinson disease o Contusion Visible bruising of the brain due to trauma that causes blood to leak from small vessels May result in a torn pia mater- which allows blood to enter subarachnoid space Usually person immediately loses consciousness (usually for no more than 5 minutes) Sometimes respiration abnormalities and/or decreased blood pressure may occur HYDROCEPHALUS - Literally means “water on the brain”
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
- Condition of excessive cerebrospinal fluid - If it occurs in a child before the cranial sutures close, the head becomes enlarged (neurological damage may occur) - If it occurs after cranial sutures are closed, the brain may be compressed as the ventricles expand, resulting in permanent brain damage - Ventriculoperitoneal (VP) Shunts o Drains excess CFS from ventricles to the abdominopelvic cavity o May cause infection or blockage - Endoscopic Third Ventriculostomy (ETV) o Newer treatment method o Creates a hole in the floor of the third ventricle that directly drains into the subarachnoid space BRODMANN AREAS - Map that shows the specific areas of the cerebral cortex where certain functions occur - Shows that similar cognitive functions are usually sequential - New technology allowed for more accurate pinpointing of brain activity, and Brodmann Area maps are not used very often anymore PHINEAS GAGE - Pole went in just below left eye, ripped through left frontal lobe, and exited the top of his head - Remained conscious and survived the event - Personality was completely changed o Incapable of making decisions, showed no regard for others, and just overall a different person EFFECTS OF ALCOHOL AND DRUGS ON THE CEREBELLUM - Disorders of the cerebellum are typically characterized by impaired skeletal muscle function - Typical symptoms include uncoordinated, jerky movements (called ataxia) or loss
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/18/2009 for the course BS 240 taught by Professor Zink during the Spring '09 term at University of the Sciences in Philadelphia.

Page1 / 14

anatomy clinical views exam 3 - CLINICAL VIEWS CHAPTER 15...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online