Notes

The brain is a super organ that has 100 bil nerves. Controls functions of the body and interprets info. Controls thoughts memory speech and movement. Cranium = skull. Cortez = outer layer thinking and movements. Brain stem = btwn spinal cord and rest of brain, sleep, and breathing. Basal ganglia are clusters of structures in the center of the brain, Messages to other brain areas, Cerebellum is at the base and back, coordination and balance. Frontal lobes, problem-solving, and judgment + motor function. The parietal lobes manage sensation, handwriting, and body position. The temporal lobe is memory and hearing. Occipital lobes, brain's visual processing system. FUNCTIONS OF BRAIN. Memory, information flows from the cortex to the hippocampus through nerve cells. 3 types of nervous systems, autonomic, sympathetic, and parasympathetic. Movement - different parts of the cerebrum. Autonomic is movement. Sympathetic is flight or fight --> stress. Parasympathetic --> getting the body ready for rest (melatonin). INJURIES Most common injury is traumatic brain injury (brain trauma) TBI head injury accidents. Acquired brain injuries are tumors and strokes basically post-birth. DISEASE types of brain diseases are infections and cause seizures and tumors. (meningitis). Primary brain tumors --> any tumor in the brain. Metastatic BT cancer started in another part of the body and went to the brain. Benign noncancerous. Malignant is fast-growing cancer that spreads to other areas of the brain (dementia Alzheimers) detected by PET scan positron emission tomography. TERMINOLOGY MEDICAL INSTRUMENTS --> CT scan or computed or tomography nonsurgical. MRI magnetic resonance imaging, Lines up body water molecules with magnets nonsurgical. MEDICAL PROFESSIONALS neurosurgeon treats brain illnesses. Neurologists specialize in treating illnesses/conditions of the brain spine and muscles. Electroneurodiagostic technician --> specializes in recording the electrical activity of the central nervous system. An electroencephalogram detects electrical activity in your brain using a small metal disc attached to your scalp.