Drinking plenty of water is part of my daily routine. The starting position is with my arm straight with my elbow extended and ending with elbow flexion to bring the cup to my mouth. For the elbow joint, the plane of motion is sagittal plane and the axis of rotation is frontal axis. For the shoulder joint, the plane of motion is the sagittal plane and the axis of rotation is the frontal axis. For the elbow joint, the osteokinematic movement is flexion. When I bring the glass of water to my mouth, I have to flex at the elbow joint to do so. The angle between my humerus and radius decreases. The arthrokinematic movement at the elbow joint is rolling and gliding. The more stable humerus rolls and glides on the less stable ulna in the same direction to produce the movement. The prime movers to bring a glass of water to my mouth are the biceps brachii, brachioradialis, and brachialis. These three muscles produce a concentric contraction in order to flex the elbow joint.
I watched a TED Talk called “Parkinson’s, depression and the switch that might turn them off” by neurosurgeon Andres Lozano. I chose to watched this because I was unfamiliar with deep brain stimulation until we discussed it in class. I wanted to further my knowledge on this subject and the diagnoses that it can be effectively used. Neurosurgery has been around for 7000 years. Originally, people with psychiatric and neurological problems were thought to be possessed by evil spirits. In order to release the spirit, they thought they needed to cut a hole in the skull. As we have learned, different parts of the brain control different functions. If there is a dysfunction in a specific area of the brain, there are specific functions that will be impaired. Dr. Lozano became interested in this and how deep brain stimulation can help people with various disorders. Deep brain stimulation is achieved by cutting a hole in the skull to reach an area of the brain with ...
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