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207: ES 207 - Study Guide

by: Elizabeth Hayden

207: ES 207 - Study Guide 207

Marketplace > University at Buffalo > Earth Sciences > 207 > 207 ES 207 Study Guide
Elizabeth Hayden
ES 207
Scott Wersinger

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ES 207
Scott Wersinger
Study Guide
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This 1 page Study Guide was uploaded by Elizabeth Hayden on Friday October 17, 2014. The Study Guide belongs to 207 at University at Buffalo taught by Scott Wersinger in Fall. Since its upload, it has received 135 views. For similar materials see ES 207 in Earth Sciences at University at Buffalo.


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Date Created: 10/17/14
The Muscular System ES2o7 In general if you need to know a structure for APR3o you need to understand its function even if it is not specifically mentioned in this guide Know the function of the muscular system Move body maintain posture respiration body heat communication constriction of organs and vessels contraction of heart Know the properties of skeletal muscle contractility excitablility extensibility and elasticity Know the structure of skeletal muscle including the fiber structure actin and myosin and the sarcomere Figures 72 and 73 Endomysium surrounds the perimysium surrounding the muscle fasciculi The muscle fasciculi contains an endomysium surrounding the muscle fiber Inside the muscle fiber is the sarcolemma cell membrane Transverse tubules connecting the sarcolemma to sarcoplasmic reticulum organized smooth endoplasmic with myofibrils extending from the sarcoplasm Actin and Myosin are the two myofilaments Actin actin tropomyosin and troponin Myosin myosin Understand about muscle fiber excitability Figure 74 Cell becomes depolarized because of Na entering the cell from a stimulus opening the channels Reaches AP then repolarized until below the RMP Goes back to RMP when the k voltage channels close


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