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Cheatography

IFB T1 Cheat Sheet (DRAFT) by

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This is a draft cheat sheet. It is a work in progress and is not finished yet.

Bioe­let­rical signals

a grp of cells
nerve & muscle cells
cardiac muscle
exert electrical signals naturally
cell membrane potential - stimuli (electric) - excited - pass threshold - action potential - generate electric field
EMG, EOG, ERG

Bio-­aco­ustic signals

sounds from the human body as it functions, giving inform­ation of the body's inner condition
lung (breat­hing), heart (blood flow), bowel, joint (bone cracking)
noninv­asive and easy way of examin­ation
sound sensor apparatus
receive the bio-ac­oustic signals

Biom­ech­anical signals

movement
motion & displa­cement signals, pressure & flow system
skeletal muscles
movement of the limbs
chest wall
movement of chest - respir­atory activity - examine rib cage injury

Bio-­optic signals

light
change in optical properties
alive cells = emit light energy
dead cells = no emit light energy
blood oxygen­ation
measure the transm­itted light from cells at different wavele­ngths
 
reflection or pulse rate by the change in skin color
 

Bioc­hemical signals

measur­ement of the chemicals in the body
directly from the living cells or in the form of samples
 
CO2, O2, ion conc, hormones, signaling & receptor pathways
 
signaling intera­ctions & processing cellular inform­ation
checks the ability of cells to recognize and respond to the changes in their enviro­nment
homeos­tasis, immunity, repair, develo­pment
error leads to disease
cancer, autoim­munity, diabetes

Bio-­mag­netic signal

weak magnetic fields
specif­ically brain, lung, heart
other organs also produce - but too weak - these organs work nonstop - slightly more stronger magnetic field
measur­ement taken in a magnetic shielded room
exclude most external distur­bances
detector called SQUID
superc­ond­ucting quantum interf­erence device

Bio-­imp­edence signals

impedance = resistance
implic­ation of weak electrical current - travel thru the cells and tissue - measure the voltage drop generated = impedance of the body
measure body compos­ition