BIOS 252 Unit 4 Midterm Essay Questions

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Chapter 10 and Chapter 11 Question: Identify and describe intracellular structures (organelles, myofilaments, ect.) of a muscle cell. Contrast skeletal, cardiac and smooth. Question: Describe all ... phases of twitch. Question: Outline the sequence of physiological events of a twitch starting at the motor neurons and ending with movement. Question: Describe a neuromuscular junction and identify all major components. Question: Describe the connective tissue “packaging” of muscle. Question: Describe the major functions of the three types of muscles and the differences between them. Question: Describe how skeletal muscles acting across synovial joints function as a lever system. Discriminate between 1st class, 2nd class and 3rd class levers in the human body(provide an example of each) Question: Differentiate between isotonic, isometric, eccentric and concentric contractions. Question: Identify the muscles involved in relaxed and forced breathing and describe their role. Chapter 12 1. Question: Identify the anatomy of a neuron 2. Question: Describe the functional and structural classification of neurons. 3. Question: Identify and describe the major divisions of the nervous system. 4. Question: List and describe the function/location of all neuroglia cells 5. Question: Explain how excitatory and inhibitory neurotransmitters work on the postsynaptic membrane and give one example of each. 6. Question: Describe all steps of an action potential, including initiation by local potential. 10. Question: Understand the mechanism of IPSPs and EPSPs. Chapter 13 Question: Describe the basic anatomy of a spinal cord section, indicating the functional significance of each area/major tract. Question: Explain the similarities and differences of a spinal withdrawal reflex and a crossed extensor reflex. [Show More]

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