September 27, 2012
1. The field of Neuropsychology studies how the brain and nervous system affection our function day to day. Neuropsychologist use methods to evaluate, treat, and rehabilitate individuals with suspected or demonstrated neurological or psychological problems. 2. The left side of the brain controls the muscles on the right side of the body and the right side of the brain controls the muscles on the left side of the body. Sensory information from the left side of the body crosses over to the right side of the brain, and vice versa. Left brain functions are those of analytic thought, logic, language, reasoning, science and math, written, numbers and skills, and right hand control. The functions of the right brain are art awareness, creativity, imagination, intuition, insight, holistic though, music awareness, 3-D forms, and left hand control. Contralaterization is where the left side of the brain controls movement on the right side of the body and the right side of the brain controls movement on the left side of the body. The cerebral cortex is your brains control and information processing center. 3. The two major subdivisions of the Nervous System are the central nervous system and the peripheral nervous system. The central nervous system consists of the brain and spinal cord, and the peripheral nervous system consists of the somatic nervous system and the autonomic nervous system. The central nervous system communicates with the body’s sensory receptors, muscles and glands through the peripheral nervous system. The central nervous system interprets sensory information along with dictating motor responses. 4. The three major parts of the brain are the cerebrum, cerebellum, and the brain stem. The cerebrum is controls movement. It is involved in remembering, problem solving, thinking, and feeling. The cerebellum controls coordination and balance. The cerebellum is known as the little brain, it proves the precise timing and appropriate patterns of skeletal contraction, modulates our emotions, and discriminate sound and texture. The brain stem connects the brain to the spinal cord and controls automatic functions such as breathing, digestion, heart rate, and blood pressure. 5. Neurons are the structure units of the nervous system. They conduct messages in the form of nerve impulses from one part of the body to another. The cell body surrounds the neuron which have dendrites off of the cell body, and an axon comes off of the body that contains a myelin sheath, and at the end of the axon are terminal branches of axon. Dendrites receive information and send it toward the cell body; the axon passes the message to other neurons, muscles or glands. The myelin sheath insulates the axon and the terminal branches form junctions with other cells. 6. A neurotransmitter is the chemical messenger released when an action potential reached the terminals at an axons end. An example of a neurotransmitter is dopamine. Dopamine influences movements, learning, attention, and emotion. Without dopamine or the degeneration of the neurons that release it you can get Parkinson’s disease. You can gain a persistent tremble at rest and a forward-bent walking posture. 7. The occipital love is involved with visual processing; it is located at the back of your head. The temporal love is involved with perception and recognition of auditory stimuli, memory, and speech. The parietal lobe is located at the top of your head on both sides of your hemispheres. The parietal love is involved with movement, orientation, recognition, and perception of stimuli. The frontal lobe is toward the front of your head and it is involved with reasoning, planning, parts of speech, movement, emotions, and problem solving. 8. Damage to the brain stem could alter the way you perceive the world. Severe damage to the brain stem can send you into coma or a vegetative state. Other damages done to the brain...
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