communication systems in the brain The Nervous System and the Endocrine System Nervous System: extensive network of nerve cells that carry messages in pulses of electrical and chemical energy throughout the body. This is the network that first comes to your rescue by accelerating you heart and tensing your muscles for action. Endocrine System: a slower acting communication network that sends a follow up message that supports and sustains that support the emergency response initiated by the nervous system
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receptors on the membrane of the neighboring cell. This stimulus causes positive sodium ions to rush across the cell membrane‚ stimulating the second cell. If the stimulation exceeds the cell’s threshold‚ a new impulse begins. 7. The autonomic nervous system regulates activities that are involuntary. 8. I don’t know. I’m really tired. Maybe. 9. The hypothalamus is the brain structure that acts as a control center for recognition and analysis of hunger‚ thirst‚ fatigue‚ anger‚ and body temperature
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sensory and motor B. The symptoms Nick is describing are likely caused by peripheral nerve damage; Not damage to the CNS. C. Diabetic neuropathies damage peripheral nerves. The component of the reflex that is most likely to be damaged in Nick’s situation would be the patellar reflex and the Achilles reflex. D. The division of the autonomic nervous system affected‚ that’s causing Nick’s GI symptoms is the parasympathetic system. E. Autonomic reflexes adjust heart rate‚ force of ventricular contraction
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Chronic Consumption of Ethanol Alcohol and Neurological Dysfunction Ethanol Alcohol‚ commonly known as Alcohol is the primary mood altering drug used in the United States of America. When alcohol is consumed it is absorbed unaltered by the stomach and the small intestines. Then the ethanol molecules are distributed evenly to all of the tissues and fluids of the body. The alcohol present in the bloodstream is metabolized by the liver through three pathways. The major pathway involves an enzyme
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are referenced appropriately in accordance with the referencing guide‚ and that I have not copied from any source. How Do Nerve Cells Work and Why is it Important for Psychologists to know this? Biological psychology hypothesises that the nervous system has the ability to influence the way we see the world around us. So much hinges on the existence of these cells that even different schools can agree upon their existence. A nerve cell‚ also known as a neuron‚ is defined as “Any of the impulse
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375). Nerves are found only in the peripheral nervous system‚ while neurons are found in the brain‚ spinal cord‚ and peripheral nerve (Martini‚ 375). Neurons are nerves cells that are specialized for intercellular communication (Martini‚ 375). A neuron is composed of a cell body‚ dendrites and axon (Marieb‚ 376). A nerve is a bundle of axons or dendrites that is wrapped in connective tissues (Martini‚ 376). The nerve transport impulse between the central nervous system and other parts of the body (Martini
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of an individual‚ but also their biology. The Biological foundation of Psychology involves the electrical and chemical processes in the nervous system that cause us to feel‚ have fears‚ and develop thoughts. There are many biological factors that can influence psychological functioning. From the neuron to the different parts of the nervous system‚ each can impact mental processes and behavior. Genetics and evolution can also influence psychological functioning. Genetics and evolution
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Exp #2: Organization of Nervous Tissue Exercise 1: Multipolar Neurons Paste an image found on LabPaq site or Google images of a spinal cord smear and label its basic parts using basic labeling boxes provided. Identify the cell body‚ the nucleus‚ the large nucleolus‚ and granular Nissl bodies on the slide. Try to find the axon and differentiate it from the dendrites if possible. Hint: after pasting image‚ right click on it and select “order”‚ “send to back”. cell body nucleus large
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important definitions. γ-Aminobutyric acid‚ also known as GABA is the chief inhibitory neurotransmitter in the mammalian central nervous system. It plays the principal role in reducing neuronal excitability throughout the nervous system. GABA-A receptors are one form of GABA receptors
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1. Digestive & respiratory systems (crossover point) 2. Conditions in stomach that aid in digestion 3. Organs that assist small intestine (liver‚ gallbladder‚ pancreas) 4. Pancreatic enzymes 5. Function of microvilli in small intestine 6. Functions of liver 7. 3 steps in respiration 8. Function of cilia in respiratory tract 9. Parts of “Respiratory tree” 10. Lung structure (Alveoli) 11. Breathing mechanism (movement of diaphragm) 12. General function of kidney 13. Structure of nephron
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