Receptors

When Pert refers to emotions, she includes not only such human experiences as anger, fear, joy, and sadness, but also drive states such as hunger and thirst, and other subjective experiences such as spiritual inspiration, awe, and bliss (Pert, 1997, 132). For a long time, it has been held by neuroscientists that emotions are controlled by certain areas of the brain (133). Mapping of emotions to specific brain areas was carried out in the 1920s by Wilder Penfield at McGill University in Montreal. However, more recent research has shown the presence of almost every neuropeptide receptor in areas such as the dorsal horn of the spinal cord, which is the first synapse within the nervous system where a

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nvironments of the body through the sensory organs, and is the center of all mental activity through its organs, the brain, spinal cord, nerves, and ganglia. The nervous system works with the endocrine system to maintain homeostasis in the body. While much of the communication in the nervous system is by electrical conduction, a major role is played by neurotransmitters. These are chemical mediators which transmit messages within the nervous system, and they do so by binding to specific receptors - binding sites - on receptor cells which interact sterically with the neurotransmitters. Neuropeptides (a class of neurotransmitters) and their receptors, together with the brain, glands, and components of the immune system form a network of communication between the brain and the body, probably representing the biochemical substrate of emotion (Pert, 1997, 179). White cells include neutrophils, basophils, eosinophils, monocytes, and lymphocytes (Applegate, 2000, 228). Neutrophils are phagocytic, and engulf mainly bacteria; basophils release histamine, and the anticoagulant heparin; eosinophils counteract histamine in allergic reactions, and destroy parasitic worms; and monocytes engulf large particles, dead cells, etc. - they
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Some common words found in the essay are:
University Montreal, , James-Lange Canon-Bard, nervous system, pert 1997, applegate 2000, immune system, References Applegate, brain body, helper cells, Company Pert, NY Scribner, cell respond specific, respond specific antigen, faster intense response, memory cells, cells secrete, immune response, secrete substances, helper cells secrete, cells secrete substances,
Approximate Word count = 1227
Approximate Pages = 5 (250 words per page)

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