@user6060112799723:

محمد مبارك
محمد مبارك
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Friday 25 September 2026 10:00:33 GMT
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user6262111300054
ود جبرة :
😂😂😂
2026-09-25 13:32:04
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haithamadamadam83
Haitham Adam Adam :
[تسجيل الإعجاب][تسجيل الإعجاب][تسجيل الإعجاب]
2026-09-25 13:07:58
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user6060112799723
محمد مبارك :
😁😁😁
2026-09-25 10:01:36
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user1784992652462
جمرة☠️❤️‍🩹💯🤣🤣 :
[ضحكة كبيرة][ضحكة كبيرة][ضحكة كبيرة]
2026-09-26 13:40:53
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Arteries and Veins: Life in the Heartbeat 🫀 . . Arteries and Veins: Life in the Heartbeat The cardiovascular system is a dynamic network that relies on arteries and veins to maintain circulation. Here’s how they function within the heartbeat cycle: Arteries Function: Carry oxygenated blood away from the heart (except for pulmonary arteries, which carry deoxygenated blood to the lungs). Structure: Thick, elastic walls that can withstand high pressure from the heart's contractions. Role in Heartbeat: During systole (heart contraction), the left ventricle pumps oxygen-rich blood into the aorta and subsequently into the arteries. The elasticity of arteries helps to absorb the pressure surge and maintain blood flow. Veins Function: Carry deoxygenated blood back to the heart (except for pulmonary veins, which carry oxygenated blood from the lungs). Structure: Thinner walls with less muscle and elastic tissue compared to arteries; they have valves to prevent backflow. Role in Heartbeat: During diastole (heart relaxation), the heart's pressure decreases, allowing veins to fill with blood returning from the body. Valves in veins help ensure unidirectional blood flow toward the heart, especially against gravity. The Heartbeat Cycle Systole: Blood is pumped from the heart into the arteries, creating pressure waves that travel through the arterial system. Diastole: The heart relaxes, allowing veins to draw blood back into the heart. Continuous Flow: This cycle is continuous, ensuring that oxygen and nutrients are delivered to tissues while waste products are transported back to the heart for removal. . .  #cardiology #anatomy  #cardio #meded #education #pulmonaryhypertension #heartanatomy #anatomi #anatomia #anatomía #cardio #pulmonaryhypertension #heartanatomy #3danimation #cardiology #meded #education #3dmodel #smartdoctor1 #medtech #pharma #medstudent #vray #anatomy #임신 #妊娠 #doctor #pregnant #pregnancy
Arteries and Veins: Life in the Heartbeat 🫀 . . Arteries and Veins: Life in the Heartbeat The cardiovascular system is a dynamic network that relies on arteries and veins to maintain circulation. Here’s how they function within the heartbeat cycle: Arteries Function: Carry oxygenated blood away from the heart (except for pulmonary arteries, which carry deoxygenated blood to the lungs). Structure: Thick, elastic walls that can withstand high pressure from the heart's contractions. Role in Heartbeat: During systole (heart contraction), the left ventricle pumps oxygen-rich blood into the aorta and subsequently into the arteries. The elasticity of arteries helps to absorb the pressure surge and maintain blood flow. Veins Function: Carry deoxygenated blood back to the heart (except for pulmonary veins, which carry oxygenated blood from the lungs). Structure: Thinner walls with less muscle and elastic tissue compared to arteries; they have valves to prevent backflow. Role in Heartbeat: During diastole (heart relaxation), the heart's pressure decreases, allowing veins to fill with blood returning from the body. Valves in veins help ensure unidirectional blood flow toward the heart, especially against gravity. The Heartbeat Cycle Systole: Blood is pumped from the heart into the arteries, creating pressure waves that travel through the arterial system. Diastole: The heart relaxes, allowing veins to draw blood back into the heart. Continuous Flow: This cycle is continuous, ensuring that oxygen and nutrients are delivered to tissues while waste products are transported back to the heart for removal. . . #cardiology #anatomy #cardio #meded #education #pulmonaryhypertension #heartanatomy #anatomi #anatomia #anatomía #cardio #pulmonaryhypertension #heartanatomy #3danimation #cardiology #meded #education #3dmodel #smartdoctor1 #medtech #pharma #medstudent #vray #anatomy #임신 #妊娠 #doctor #pregnant #pregnancy

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