Heart Electricity and ECG PDF

Summary

This document covers the heart's electrical conduction system and electrocardiography (ECG). It details the function of the heart, the cells involved in electrical signaling, and how these signals relate to the heart's mechanical contractions. The document also discusses the various components of the cardiac conduction system such as the SA node, AV node, and bundle of His.

Full Transcript

Jehad Ahmed ALSHANTY 1 =. glasses File no.3 Sec.2.2: Heart Conduction System Ch.2: Electricity in Human Body 2 Heart Function ↑ The heart is a four-chambered muscular organ whose...

Jehad Ahmed ALSHANTY 1 =. glasses File no.3 Sec.2.2: Heart Conduction System Ch.2: Electricity in Human Body 2 Heart Function ↑ The heart is a four-chambered muscular organ whose ⑯ - function is to pump blood throughout the body via the ② & circulatory system, supplying oxygen and nutrients to ③ the tissues and removing CO2 and other wastes. L & · is is I i&Is si ↳ - Mi S J, 5). & i is sir - relaxation is i 2 deoxygented & E ↑ 50 1(3515 &94 , & 96.59 , ↑ /g - aortas 5) suc lisi : bac, 5? 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SA conducting As digs in purkinjeigzgjig 28 Bundl branche 0.511825 25 b & Intrioventricala Fiber b bundle of his is inter ventricular septum :$549 & , ig https://www.youtube.com/watch?v=3IrjBWhdZ6s 1ststep jgy depolar upacemake & ⑤ = - - - - - - -- J - Kwave58. % % gijs ~ = O - W ⑳O &i Jehad Ahmed ALSHANTY 8 /s action depolarization potentials Gus &= 40 , pin ·Sisiglo 60. 3/ & : depolarizatioIt pacemaker 11818s wo do - 10: depolarize (1 ,5 = =1115 jedepolarize pacemaker Stop 18 contraction i 0 big depolarization relation b2j0b, repolarization ; ↓ is 51 of depolarization 1 St node is se. Pacemakers Sojs.x, wave ,e repolarization action potential - depolarization It is - & 1 action potential (1 desi & is (electric : is a is curential) 5 is depolarizationsidisin Sign intercalated cell is + gabjunction JO Confolor six , as gap junction ‫&قاطعات الفجوة يسمح لجميع خاليا القلب‬ ( ‫إن وجود خاليا القلب متصلة عبر ت‬.‫املنقبضة بالعمل بطريقة منسقة والتعاقد كوحدة واحدة‬ 00 & & contracting s depolarizations Wave Jehad Ahmed ALSHANTY 9 D I sit % Desi Jes , - G jistles i cation jigs - & s I - 181275%54"E : 1., i51 ↑ contraction is birdie , & JEy I depolarization trepolaization /Sign , &5.1 giji - C &Ji blog -s lin 1529 - Jehad Ahmed ALSHANTY 10 0 - - depolariz/1-& 5 91 , & -2 ② - & - - > - & ·Sist 5598S Jehad Ahmed ALSHANTY 11 /19 & & & deptations - hypodeportsn by - ↑ 90-t /5 jgerest 114· 310 - + "n -I raped i ↑ · Na-Sys S MNT is's 45 i depolarizations I' n - deportations = / 5. % - = depolarize wil in Jj, S : , S / repolarization2 depolarization - 1920s - Na 11 Jes # 1:52s repolaizatio -J 19 S / 11 jig sI = - & - / channel Flyis plateau 11 loodN61s ↑ slowly /1s8 - & dis Jor & ca - depolarization s josil Na , case - Na ji%, Ca i & ". 1550 - ca(15415 -. ↑ + , 49 25 Bis 2. , is sk -. Sjj. is Rapid depolarization.. is 5 ]; & /. 95 Nat 3490 - - J k + 17 %S ↑ is &SS. tod - 90 s rest si sigs &Ndepolarizations 1s ↓ rests : repolizations is = -.S Is ; n repolaitats & since ii. Jehad Ahmed ALSHANTY 12 - ↑ did - ↑ contraction n 8 · , > - ↑ 1961 ji 985Y 19415j y 51 # 58 5i · is - Jehad Ahmed ALSHANTY 13 &ses be O & I - atriums 1 jos95).. deporalizations right Left ' atrium s Saj uod C ·, sa depolarizations1i5- right So & pacemacon's: cells - Left visi Sist si depolarit 037 ! s sa a - , & - - ① & , depolarizati - jij ess ne gug brand budte his of 1801-9- &s ↳wi his, se ② · -line is & ⑤ - 3 I 15959 & 5 ⑤Sina 9. ·, 199 is es j ji S ! ~ ·:9595 9 / s-5552/ warst i j ga bundle brunches / - 87 glj -: - Jehad Ahmed ALSHANTY 14 its, 2414&. interverticular s - septum & is is I · Jehad Ahmed ALSHANTY 15 -Shruss & - - # 95. & 25 - - %95 Glgilg jjijis - -Voltage ↑ 61 & je i) SI & & · - si · · - & 15 - -4445E & - 29/953i & Jehad Ahmed ALSHANTY grounds1,%15% ' 16 -' depolarizations (g sig atrium S1s depolarization& - & , 9. Eco Si - 5) 55. 5 - Die < :% s I - - - - G-Av Zero indi ↑ g - & - bundle 8:05 & S branches ↳g ↳ 49152 -. - - 3 % 845,9.. 59. depolarizas 2019i 9. 3.. S & ii O - rig jis! Ar se depolarizations in 25 I ind O Zero 8 = %y lg Si ventcular st - > repolarization Eco _ jj deporization > & is s Jehad Ahmed ALSHANTY 17 ↑ &s is - 25 i - Animation of the spread of conduction through the heart associated with the formation of the ECG signal 18 Jehad Ahmed ALSHANTY ⑨ * - - X = - repolarization , depulmitations % 15 4-, 8 : Jehad Ahmed ALSHANTY 19 5 sSli %Y deepo : & i & / 516 / I j - Jehad Ahmed ALSHANTY 20 & 10 electrodes) - 12 is Leads 4- jiting 6 - , is - 9 - - - - & inst round ↑ Jehad Ahmed ALSHANTY 21 A jiga ↑ - "Lead -ni = Jehad Ahmed ALSHANTY 22 Jaidl sensors S 18 & 12 6 chea gui - / -a Jehad Ahmed ALSHANTY 23 & /sig 59. I dectrodRA: L ground & RA , LA; 12/ & RA Y LA LA org negative -O Positive O ref O ref exp standard 3 zelectrode n 49 Ol Owh - O12 7 jisgei etf bipolar heads LA RA O O wcT O one electrod = 3254) 5 Sigg9 Navarg-5 unipolar leads 41 , RA , WA CL 5 sijij on, Missis references 1 Jehad Ahmed ALSHANTY 24 WCT - - - WT Jehad Ahmed ALSHANTY 25 enthoven 15.: 99 dig s i & - - - Is Jehad Ahmed ALSHANTY 26 - Gelectrod - G heads VI. ve -.... Us - - Jehad Ahmed ALSHANTY o Exp 27 Limp chesk O O o C reads G C 8 O · W C G g l eit -3 9 ↑ st Jehad Ahmed ALSHANTY -je referance /1-1 weT 9 ig-&J Real point "Als explorings 29 ⑧ - - - depolarization Vector & Lead N exploring1100's Sil ↑. O deflection , 1 - 5t & Lead 11 - => - - depolarizatio & is I Jehad Ahmed ALSHANTY is ju & refrences 10 5 % 30 I is Ventricals depolarizations * wave atrium Left "eig deps-si 1dr - intervencularare & Ventrecul right - T ↑ atrum sig exploring · vis so Exploring S explorings 10 V9 0545jja* C 8% Pries atrium & depolarizati 5. 11552 &I deflection 51 A && deflections /se 2) exploring % r ·5 3 - 5. & --- 1/ g* & 852, exploring %%. 10 5. =61 * j91 + S Jehad Ahmed ALSHANTY 31 Josi &j 01 si -) - S ↑ - - = = % % , 4 Imms). & & jg, ise-smmil sas 3mm = g]mv. Jehad Ahmed ALSHANTY 32 Vertical- Voltage Horizontal= time Imm 9 I mu Immi = - 904 ser = Big ↑ = 1961 6. Smutsis' 12 4&d & - 5mV = sec = 5mm =. - , 2 = 4x5 5895 : 59qd 4. Imu iii. 5 Is it 4. 49 9 5. :Q -/ & &gor1 jil $7 50s. yur 5um n95 mr Eg21) - - , es 5995. 2 ? 1 mu - - # 12 = 525/i in g8,7 7. 55S , 5 = X , S 1 98545 = :>291010mm = X 5mm 35 - , 2 se 1s 25 sil jn559959,. 25mm > - I see Seed = 10 mminu 5 = X , 2 X- 25mm 25mm/5-55 horizontals? Speed sil &Jil, 90 ijs Os refrence.5 110 % - 0 581 - Vectors 18 9a 12 Lead [ a depend a - 5 T - Glimp & DID E Augmented m ① Standard Limps Lead 11131 ② auf aVR aVL = Gehest - U , Ve...... Vo Signal [ in Leads 110% Sing 5.4Jehad Ahmed ALSHANTY 33 · - prast pinijjse - - - - &I normal is I -- O G 2 - wa b Sig -RT QS Wave Ni - J, jis b &Sp 9 · n = & [ Arrythmia Jehad Ahmed ALSHANTY 35 · 46 -5 - - - ↑ : 15/1 v ,i regular ;8 is iii & ↳ 5 regulars -i, lj - - - - IwaveJs ↑ - - jus - - - 81 - OS > - # - Sig61-ejjosliss - - d & 1AX ?& Reaks 59 s ishorezanta /10 Jehad Ahmed ALSHANTY 56 36 jn20e sil - 20s 2R wave on. 4 a is - I -- S - - Stjsl - , s o Risis -5 wi 295 - larges small lis? b square = # Do = So 25 (20+ 1 + 4) J2 349678a To 11 13 14 IS 16 17 18 19 20 1 2223 24 25 26 292829 30 O : dis jssid 5552 - F 546 + 06/4 959630 = - 7x1054 &157299330116968 > - Jehad Ahmed ALSHANTY 37 ‫ﻺﻧﺴﺎِن إِﻻّ ﻣﺎ َﺳﻌﻰ ۝ َوأَﱠن َﺳﻌﯿَﮫُ َﺳﻮ َ‬ ‫ف ﯾُﺮى ﴾‬ ‫﴿ َوأَن ﻟَﯿ َ‬ ‫ﺲ ﻟِ ِ‬

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