# Biomedical engineering final exam prep * B04901110 * 林冠宇 ## Bioelectric phenomena * Nernst potential: * ![](https://i.imgur.com/cCOHMmB.png) * ![](https://i.imgur.com/TchBXPI.png =200x80) * ![](https://i.imgur.com/gRHRrkB.png) * Na + ions tend to move into the cell * K + ions tend to move out of the cell * ![](https://i.imgur.com/v67TfK8.png) * ![nerve](https://i.imgur.com/8eyV1oL.png) * ![](https://i.imgur.com/AEHqRay.png) * ![](https://i.imgur.com/IfoskYV.png) * ![](https://i.imgur.com/wpB8txZ.png) * Abnormal ECG examples * arrhythmias 心律失常 * myocardial infarction 心肌梗塞 * ventricular hypertrophy 心室肥大 * Electrocardiogram (ECG or EKG) 心電圖 * Electromyogram (EMG) 肌電圖 * Non-invasive * Percutaneous * Electroencephalogram (EEG) 腦電圖 * Non-invasive electrode * Invasive electrode ## Biomedical optics * Optical sensing: spectroscopy 光譜 * Light-matter interaction * Absorption spectroscopy * Fluorescence spectroscopy * Bio-imaging: microscopy * Fundamentals – geometrical optics * In vivo imaging – confocal microscopy * In vivo imaging – optical coherence tomography (OCT) * ![](https://i.imgur.com/3TbRbGE.png) * ![](https://i.imgur.com/DVlZTMt.png) * ![](https://i.imgur.com/FoMe6X1.png) * 癌症造成的組織變化 * 上皮組織內變化: 細胞核肥大 * angiogenesis * 膠原蛋白網路重組 * fluorescense response * ![](https://i.imgur.com/NZfjPnc.png) * ![](https://i.imgur.com/QQMoNF9.png) * ![](https://i.imgur.com/TrzF78T.png) * Hemoglobin (Hb or Hgb) is a protein in red blood cells that carries oxygen throughout the body. * ![](https://i.imgur.com/vvPHDE4.png) * ![](https://i.imgur.com/HsgVoo9.png) * ![](https://i.imgur.com/JIIJLIH.png) * ![](https://i.imgur.com/vEzoeXk.png) * ![](https://i.imgur.com/go3XuPt.png) * Confocal microscopy – introduction * Use a spatial filter to isolate signal only from a small focus within a thick sample * Fiber-optic confocal * A single-mode optical fiber is used as the point source and the detection pinhole ## Introduction to Modeling in Cancer * ![](https://i.imgur.com/dru92rI.png) * Mathemetical models * Exponential: * Mendelsohn: * logistic * linear * surface * Gompertz * growth in size of entire organisms and more recently, was shown to provide the best fits for breast and lung cancer growth. * Bertalanffy * This model was shown to provide the best description of human tumor growth