Here's exactly what happens every time your heart beats 🫀 It starts with an electrical signal from the SA node — your heart's natural pacemaker. That signal tells your atria to contract, pushing blood down into the ventricles. Then the ventricles contract (ventricular systole): 🫀 Right ventricle → pumps deoxygenated blood to the lungs 🫀 Left ventricle → pumps oxygen-rich blood to the rest of your body After that, the heart enters diastole — a brief relaxation where the chambers refill and pre
0:06
TikTokdrdavidabbasi
Here's exactly what happens every time your heart beats 🫀 It starts with an electrical signal from the SA node — your heart's natural pacemaker. That signal tells your atria to
Dr. David Abbasi, MD(@drdavidabbasi). original sound - Dr. David Abbasi, MD. Here's exactly what happens every time your heart beats 🫀 It starts with an electrical signal from the SA node — your heart's natural pacemaker. That signal tells your atria to contract, pushing blood down into the ventricles. Then the ventricles contract ...
已浏览 73万 次2 周前
Signal App Review
Why mobile signal is so bad in London
1:03
Why mobile signal is so bad in London
YouTubeUrban Stories
已浏览 3万 次2 周前
She Fell Into His Trunk… Then Everything Changed #KindManGlobal #SOSSignal #PublicSafety
0:19
She Fell Into His Trunk… Then Everything Changed #KindManGlobal #SOSSignal #PublicSafety
YouTubeKind Man Global
已浏览 3.6万 次1 周前
He Cut In Line… But Then Everyone Understood Why 😱❤️ #ONEMAN #SilentSOS #Kindness #Humanity #Shorts
0:13
He Cut In Line… But Then Everyone Understood Why 😱❤️ #ONEMAN #SilentSOS #Kindness #Humanity #Shorts
YouTubeONE MAN
已浏览 3.1万 次2 周前
热门视频
DFT Reconstruction of Audio Clip: Fourier Reconstruction Explained
0:52
DFT Reconstruction of Audio Clip: Fourier Reconstruction Explained
TikTokyataqii
已浏览 27.2万 次3 周前
Why WiFi Exists: From Black Hole Math to Home Networks
1:55
Why WiFi Exists: From Black Hole Math to Home Networks
TikTokwuushie
已浏览 12.4万 次3 周前
Avata 2 Range Test: 15km Launch Toward Tsitsa Falls
2:28
Avata 2 Range Test: 15km Launch Toward Tsitsa Falls
TikTokofficialfadafada1
已浏览 5.2万 次3 周前
Signal Vs WhatsApp
சரியான திசையில் சாலையில் செல்லுங்கள் #traffic #rules #driving #road #safety #awarness
1:11
சரியான திசையில் சாலையில் செல்லுங்கள் #traffic #rules #driving #road #safety #awarness
YouTubeVizhi - Awake
已浏览 8481 次1 周前
Zoubková víla se vytáhla! Teď budou zuby jako perličky už po prvním čištění 🦷🪥 #Signal #Signal...
0:42
Zoubková víla se vytáhla! Teď budou zuby jako perličky už po prvním čištění 🦷🪥 #Signal #Signal...
YouTubeklaralh
已浏览 33.5万 次1 个月前
How to Send a Signal 2,000ft to Surface in Minecraft Mining
1:09
How to Send a Signal 2,000ft to Surface in Minecraft Mining
TikTokhidden.treasure107
已浏览 26.2万 次3 周前
DFT Reconstruction of Audio Clip: Fourier Reconstruction Explained
0:52
DFT Reconstruction of Audio Clip: Fourier Reconstruction Explained
已浏览 27.2万 次3 周前
TikTokyataqii
Why WiFi Exists: From Black Hole Math to Home Networks
1:55
Why WiFi Exists: From Black Hole Math to Home Networks
已浏览 12.4万 次3 周前
TikTokwuushie
Avata 2 Range Test: 15km Launch Toward Tsitsa Falls
2:28
Avata 2 Range Test: 15km Launch Toward Tsitsa Falls
已浏览 5.2万 次3 周前
TikTokofficialfadafada1
Why mobile signal is so bad in London
1:03
Why mobile signal is so bad in London
已浏览 3万 次2 周前
YouTubeUrban Stories
Emergency Signals That Can Save Your Life
1:00
Emergency Signals That Can Save Your Life
已浏览 218.8万 次1 周前
YouTubeSambucha
She Fell Into His Trunk… Then Everything Changed #KindManGlobal #SOSSignal #PublicSafety
0:19
She Fell Into His Trunk… Then Everything Changed #KindManGlo…
已浏览 3.6万 次1 周前
YouTubeKind Man Global
He Cut In Line… But Then Everyone Understood Why 😱❤️ #ONEMAN #SilentSOS #Kindness #Humanity #Shorts
0:13
He Cut In Line… But Then Everyone Understood Why 😱❤️ #ONEMAN #…
已浏览 3.1万 次2 周前
YouTubeONE MAN
1:19
#fairs #aistory #triplet #brainrot | Fair Rides
已浏览 140万 次2 周前
TikTokflashloop_ai
1:00
Kenyan Man Goes Viral After Mimicking President William Ruto …
已浏览 110万 次1 个月前
TikToktrue.signal.news
0:44
Fun fact: Meerkats have a sentinel system where one member keeps …
已浏览 23.1万 次1 周前
TikToknaturalhabitok
0:19
Wenn du laute Nachbarn hast, brauchst du das #Witz #LauteMusi…
已浏览 99.9万 次3 周前
TikTokphantom.signal.pro
0:14
Eldoret Genzs Spotted Cruising Around Kimumu In A Car With No …
已浏览 73.9万 次1 个月前
TikToktrue.signal.news
1:11
சரியான திசையில் சாலையில் செல்லு…
已浏览 8481 次1 周前
YouTubeVizhi - Awake
0:42
Zoubková víla se vytáhla! Teď budou zuby jako perličky už po pr…
已浏览 33.5万 次1 个月前
YouTubeklaralh
0:25
Mini Portable WiFi Repeater Space Saving Combo Pack #MiniRepeate…
已浏览 1.4万 次1 周前
TikTokkuha.signal
1:05
Orange Cat 'Warning Paw' Returns: Macaroni and Cheese the Cat
已浏览 12.3万 次2 周前
TikTokmacaroniandcheesethecats
1:09
How to Send a Signal 2,000ft to Surface in Minecraft Mining
已浏览 26.2万 次3 周前
TikTokhidden.treasure107
0:09
Saraiki song viral video: سنگت ویڈیو وائرل کیسے بنائیں
已浏览 21.4万 次1 周前
TikToksharh192
1:19
Victor Davis Hanson: We’re the ‘Lab Rats’ In Newsom’s California Utop…
已浏览 13.9万 次1 个月前
YouTubeThe Daily Signal
观看更多视频
静态缩略图占位符