課程信息
4.6
72 個評分
9 個審閱
100% 在線

100% 在線

立即開始,按照自己的計劃學習。
可靈活調整截止日期

可靈活調整截止日期

根據您的日程表重置截止日期。
中級

中級

完成時間(小時)

完成時間大約為7 小時

建議:7 weeks of study, 1-3 hours/week...
可選語言

英語(English)

字幕:英語(English)
100% 在線

100% 在線

立即開始,按照自己的計劃學習。
可靈活調整截止日期

可靈活調整截止日期

根據您的日程表重置截止日期。
中級

中級

完成時間(小時)

完成時間大約為7 小時

建議:7 weeks of study, 1-3 hours/week...
可選語言

英語(English)

字幕:英語(English)

教學大綱 - 您將從這門課程中學到什麼

1
完成時間(小時)
完成時間為 1 小時

Week 1

A brief history of extracellular measurements, and an example of such a recording. The goal is to understand the amplitudes and time variation of such measurements, as well as learn about some interesting and useful historical events....
Reading
3 個視頻 (總計 20 分鐘), 3 個閱讀材料, 1 個測驗
Video3 個視頻
Welcome7分鐘
The First Extracellular Measurements5分鐘
Observing Wave Forms Between Human Hands7分鐘
Reading3 個閱讀材料
Course Overview10分鐘
Assessments, Grading and Certificates10分鐘
Week 1 Slides10分鐘
Quiz1 個練習
120分鐘
2
完成時間(小時)
完成時間為 2 小時

Week 2

A presentation of the cylindrical fiber model of a nerve. The goal is to see how this geometrically simple model of a nerve actually is sufficient to explain complex bioelectric events within and around electrically active tissue. One learns that currents are driven forward by voltages across cell membranes,. Current loops are created, with some parts of the current loop inside and other parts outside the active cells. Electrical potentials are created by the current loops, and are positive when these are approaching, negative when they are receding. In so doing they form the basis of all extracellular wave forms....
Reading
9 個視頻 (總計 44 分鐘), 3 個閱讀材料, 1 個測驗
Video9 個視頻
Geometry6分鐘
Left or right side stimulation5分鐘
Simultaneous stimulation model2分鐘
Definitions and questions6分鐘
Origin in the membrane6分鐘
Big loops as well as small4分鐘
Approaching wave forms5分鐘
Departing wave forms3分鐘
Observations4分鐘
Reading3 個閱讀材料
Cylinderical Fiber Model Slides9分鐘
Current Loops Slides10分鐘
Current Loops and the Extracellular Waveforms Slides10分鐘
Quiz1 個練習
224分鐘
3
完成時間(小時)
完成時間為 1 小時

Week 3

Notable and useful aspects of extracellular wave forms are their changes in shape. What causes such changes? Two illuminating examples are studied, one that does not, and then another that does....
Reading
7 個視頻 (總計 33 分鐘), 3 個閱讀材料, 1 個測驗
Video7 個視頻
Vm and current inside3分鐘
Vm patterns3分鐘
Current loops3分鐘
Experimental setup, cardiac Purkinje6分鐘
Stimulation at the left or right3分鐘
Stimulation at both ends, collision5分鐘
Reading3 個閱讀材料
When do Wave Shapes Change? Slides10分鐘
Simultaneous Left and Right Stimulation Slides10分鐘
Experimental Data Slides10分鐘
Quiz1 個練習
324分鐘
4
完成時間(小時)
完成時間為 1 小時

Week 4

Weeks 1 to 3 present some intriguing concepts and explain them with drawings and sketches. Do the wave forms so drawn have any connection with real tissue? Indeed they do. The goal of this week is to examine some specific experimental wave forms that were measured in cardiac Punkinje fibers, and to compare them those anticipated in earlier weeks.Week 4 is the end of the standard course. The remaining weeks are for honors study....
Reading
4 個視頻 (總計 17 分鐘), 1 個閱讀材料, 1 個測驗
Video4 個視頻
Two-fiber model, asynchronous2分鐘
Experimental findings6分鐘
Multiphasic summary3分鐘
Reading1 個閱讀材料
Multiphasic Recordings Slides10分鐘
Quiz1 個練習
424分鐘
4.6
9 個審閱Chevron Right

熱門審閱

創建者 AJApr 15th 2018

Great follow up course to the previous within the installment regarding bioelectricity. Taught me quite a lot and am looking forward to further releases to the series if they are in the works.

創建者 PWMar 8th 2017

Having been out school for over 30 years this was a very challenging but rewarding course for myself. I'm glad i took it

講師

Avatar

Dr. Roger Barr

Anderson-Rupp Professor of Biomedical Engineering and Associate Professor of Pediatrics
Biomedical Engineering, Pediatrics

關於 Duke University

Duke University has about 13,000 undergraduate and graduate students and a world-class faculty helping to expand the frontiers of knowledge. The university has a strong commitment to applying knowledge in service to society, both near its North Carolina campus and around the world....

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