Lecture Outline 5.1 - Lecture Outline 5: Part I - Chemical...

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Lecture Outline 5: Part I - Chemical Control Systems Chemical Signals And Control Systems Part I – The Control Reflex Model Silverthorn Ref. Ch. 6 - 8 Learning Objectives for Understanding Chemical Signaling 1. Name the components of a Reflex and describe their individual contribution to the whole reflex process 2. Associate the organs of both Nervous and Endocrine systems with the similar component from the Control Reflex Model 3. Compare and Contrast the nervous and endocrine reflexes to understand the human need for two systems 4. Explore the variations of Reflexes to understand what Cannon was postulating about 5. Explain the different Patterns (forms) of reflexes to understand the importance of integrated and non-integrated control 6. Define the types of chemical signals by the cells that produce them and relate the chemical structure to their time of presence Key Terminology – Agonist, antagonist, afferent, action, amine, amino acid, blood concentration, cholesterol, CNS, circuit, circulation, complex reflex, duration, feedback, frequency, effector organ, efferent, endocrine gland, excitatory, homeostasis, hormone, ionotropic, isomer, inhibitory, modulation, metabotropic, neurotransmiter, neuromodulator, neurohormone, neuron, peptide, plasma membrane, processor, postulate, prohormone, permissive, pleiotropy, receptor, response, rhythm, reflex, synapse, synergism, signal strength, synthesis, secretion, target organ, terminate, tonic, variability, Walter Cannon **Control Systems- Why two systems? TABLE 6-4 a. i. Homeostatic reflexes: two-way communication with organ ii. Benefits- efferent pathway can establish connection with any organ (far-reaching through circulation); long-lasting, adjustable tonic abilities; iii. Limitations- slow reaction time; peptide nature (synthesis has high energy cost) b. i. Survival reflexes ii. Outgoing- efferent iii. Incoming- afferent
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iv. Benefits: fast response time (electrical impulse); dominant control center
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This note was uploaded on 08/14/2008 for the course BY 116 taught by Professor Gilchrist during the Spring '08 term at University of Alabama at Birmingham.

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Lecture Outline 5.1 - Lecture Outline 5: Part I - Chemical...

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