PNB 2264 Study Guide - Midterm Guide: Lateral Sulcus, Central Canal, Histology

• School: UConn
• Department: Physiology and Neurobiology
• Course: PNB 2264
• Professor: Kimball & Redden

Document Summary

Lab 6 describe the effects of stretch on contractile force. Create a length tension curve and correlate it to different physiological conditions. Demonstrate the effects of increasing stimulus frequency on contractile force. Demonstrate the differences between twitch, summation, tetanus and fatigue using the. Relationship between the intensity of muscle stimulation and contractile force. Explain how muscle stretch, summation, tetanus and fatigue affect contractile experimental setup. strength. Motor unit: one motor neuron and all the muscle fibers it innervates. Steps btwn motor neuron activation and muscle contraction. Twitch: a single contraction & relaxation in a muscle fiber; size and slope of twitch can vary from fiber-to-fiber. Why is tetanic tension greater than twitch tension? all times. In tetanus, the increase in ap there is enough calcium to saturate troponin at. Frequency of stimuli also impacts rate of ap. A & e are not in the physiological range; too much stretch or overlap is not optimal for tension/muscle force.