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4. List all the CNs which contain the parasympathetic nerve fibers (you may have more than needed rows in this table) CN name and # Motor ganglion PSN function Essay questions: 1. Use the "ventral or lateral corticospinal pathway" to describe the motor signal travels from the CNS to the biceps brachii a. Define the ventral corticospinal pathway b. Location for upper motor neurons and lower motor neurons c. How does the lower motor neuron be activated? d. What neural transmitter the lower motor neurons release? c. How does the skeletal muscle cells respond to the neural signal (step by step mechanism for neuron-skeletal muscle cell synapsis)? 2. Describe the process of excitation-contraction-relaxation for a skeletal muscle cell (starts with NT binds with the receptor on a skeletal muscle cell). 3. What is "a motor unit", why motor units are important for skeletal muscle function. 4. Describe the 3 pathways for regenerating ATP during skeletal muscle contractions. 5. Using the following keywords to describe the excitation contraction mechanism for smooth muscle cells. (Neural transmitter, Norepinephrine, adrenergic receptors, calmodulin, intra-calcium concentration, sarvoplasmic reticulum, ATP, actin, myosin, G protein, Calcium channels on the cell membrane, calcium channels on the SR) 6. Use examples to explain cach of the 3 lever systems.
4. List all the CNs which contain the parasympathetic nerve fibers (you may have more than needed rows in this table) CN name and # Motor ganglion PSN function