INTRODUCTION Give a brief description in your own words of the objectives and aims of this practical. The aim of this practical was to understand how the autonomic nervous system has an effect In the ileum. Through this‚ we can delve deeper by understanding how nerves‚ through the actions Of various neurotransmitters affect the motility of the gastrointesital tract. Furthermore‚ we can investigate The effects of drugs‚ and their uses in replicating effects of autonomic neurotransmitters
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Process The sequence of events that converts action potentials in a muscle fiber to a contraction is know as excitation contraction coupling. In order for a skeletal muscle fiber to contract‚ it has to get a signal from the nervous system. The part of the nervous system that it gets a signal from is called a motor neuron. An electoral signal‚ called an action potential travels down the axon and to the axon terminal. At the end of the motor neuron are structures called synaptic vesicles and they
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perspectives that should be considered being cognitive and biological. The cognitive perspective suggests that emotion is based more on the factors of the mental processes. The biological perspective suggests that emotion is influenced by biological systems and performances and is based on physiological responses. It has been suggested that there is a possible interaction between cognitive and biological processes that influence emotions. Le Doux’s theory of the biological pathways focuses solely on
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habits. Before the legal age of 21; almost seventy percent of people manage to get away with at least one alcoholic drink. This increases the probability of adolescent consumption in the future. Alcohol‚ specifically ethanol‚ depresses the central nervous system and it has many side-effects. Cell membranes in the human body have high permeability to alcohol‚ so alcohol diffuses into nearly every biological tissue of the body once it gets into the blood stream (Dasgupta 2011‚ pg. 88). It starts affecting
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disease of a heterogeneous nature. Its etiology has caused many controversies and still remains unknown in the medical community after many decades of research. Multiple Sclerosis is a chronic inflammatory demyelinating disease of the central nervous system and the spinal cord‚ which leads to patches of plaques in the regions of the brain and the spinal cord (Tenemabaum‚ 2011). The disease affects the body’s neurons‚ the cells of the brain and the spinal cord that carry information‚ which creates
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Biological Basis of Behavior Neurons Neuroanatomy: Study of the parts/function of a neuron. Neuron: Nerve cells. Their parts are dendrites‚ soma‚ axon‚ Myelin sheath‚ and Terminal buttons. Dendrites: Rootlike structures that form synaptic connections with other neurons Soma: The body of the neuron‚ contains the nucleus and other cell organelles Axon: Wirelike structure that connects the soma to the Terminal buttons Myelin sheath: Fatty covering of the axon that speeds up neural
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in the nervous system. A second factor is infection we are familiar with the idea of bacteria or viruses causing physical illness such as flu. It seems though that infection can also give a rise to mental illness. Flu has been linked to schizophrenia. Recent research shows that schizophrenia cases have been linked with exposure to the flu virus in the womb during the first trimester. The third factor is biochemistry. Neurotransmitters are thought to be out of balance in the nervous system of individuals
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Multiple Sclerosis (MS) is an unpredictable disease that disables the central nervous system including the brain‚ spinal cord‚ and peripheral nervous system. This disease is disabling and emotionally devastating to the person. Ultimately‚ it’s considered an autoimmune disease which means the body’s immune system attacks itself‚ causing damage to the myelin sheath‚ which covers the nerve fibers. This causes problems with the body’s communication between the brain and the nerves in rest of the body
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object or organism‚ usually in relation to the environment. Behavior can be conscious or unconscious‚ overt or covert‚ and voluntary or involuntary. Behavior is controlled by the nervous system; the complexity of the behavior is related to the complexity of the nervous system. Generally‚ organisms with complex nervous systems have a greater capacity to learn new responses and thus adjust their behavior. Human behavior is the collection of activities by human beings and influenced by culture‚ attitudes
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nerve cells and triggers the release of dopamine. Dopamine gives you the feeling of bliss. Norepinephrine: stimulates the production of adrenaline. Adrenaline enhances your senses and your mind‚ but too much of it can corrupt your nervous system and your sensory system. Infatuation vs. Love Infatuation
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