#Vascular System

The circulatory (cardiovascular) system is a vital network consisting of the heart, blood vessels, and blood, designed to transport oxygen, nutrients, hormones, and waste products throughout the body. #CirculatorySystem #HumanBody #Biology #Health #Cardiovascular

Systemic and Pulmonary circulation - The continuous journey of Life through Heart Deoxygenated blood from the legs, internal organs, arms, and head returns to the heart through two great veins - the Inferior Vena Cava from the lower body and the Superior Vena Cava from the upper body - entering the Right Atrium. It flows into the Right Ventricle, which pushes it through the Pulmonary Artery toward the lungs. In the lungs, blood releases carbon dioxide and absorbs fresh oxygen. This “recharged” blood now carries life again. It returns to the heart through the Pulmonary Veins, enters the Left Atrium, and moves into the powerful Left Ventricle - the chamber built to serve the entire body. With a forceful pump, the left ventricle sends this oxygen-rich blood into the Aorta, from where it splits into three great directions: upward to the head and brain, sideways to the arms, and downward to the organs and legs. In the brain, blood sustains thought, memory, and nerve control. In the arms, it powers movement, grip, and work. In the organs and legs, it fuels digestion, balance, walking, and survival. At the tiniest vessels - the capillaries - blood delivers oxygen and glucose, collects waste and carbon dioxide, turns dark again, and begins its return to the heart. This circulation never pauses, because the brain fades within minutes without oxygen, muscles collapse without energy, and organs fail without supply. The heart is the engine. Blood is the carrier. Vessels are the highways of life. . . . . . #BloodFlow #HeartToBody #PulmonaryCirculation #SystemicCirculation #RightAtrium #LeftVentricle #Aorta #VenaCava #OxygenCycle #GasExchange #Capillaries

Traveling Against The Blood Flow @facts_and_stuff_by_d #biology #anatomy

Blood circulation 3D Animation #3dmedico

Face Map of Life Lines 💙 Tracing every pathway that keeps your glow alive—veins that tell the story beneath your skin.Beneath the surface of the skin lies a complex and beautifully organized network of veins that quietly sustain life. the intricate facial venous system—from the delicate supraorbital and infraorbital veins around the eyes to the prominent facial vein that courses down toward the neck. Each vessel plays a crucial role in draining deoxygenated blood, maintaining circulation, and supporting overall facial health. a visual journey into the hidden pathways that keep your face alive and functioning every second. #FacialVeins #HumanAnatomy #3DMedicalArt #VascularSystem

From Body Veins to Heart | Vena Cava Flow 💙🫀 - - In this 3D beating heart, you’re watching venous blood return from the whole body into the right atrium. The blue stream shows deoxygenated blood coming from the superior vena cava (upper body) and the inferior vena cava (lower body) before it moves through the tricuspid valve toward the lungs. For anyone who is confused by the blue color: this “blue” blood is actually dark red in real life. We simply color it blue here to clearly highlight the low-oxygen blood returning to the heart. - - - - - - - - - - 🎥 Video created by Dr. Bahaa N Dmour, CEO & Founder of Smart Doctor 🔶 - - - - #pulmonaryhypertension #heartanatomy #3danimation #cardiology #fblifestyle #anatomy #heart #cardio #meded #education #aorticvalve #smartdoctor1 #medicina #pregnant #pregnancy

Hidden Circulation Inside the Heart 🫀 - - This 3D animation shows the blood circulation inside the human heart — the part you never get to see in real life. You can follow the blood as it moves through the right side to the lungs and then returns to the left side before being pumped out through the aorta to the rest of the body. In this model, blue blood is used to represent deoxygenated blood (low in oxygen), and red blood represents oxygenated blood (rich in oxygen). In reality, this “blue” blood is actually dark red, but the color difference here makes it much easier to understand what is going to the lungs and what is coming back from the lungs. This video is made to help viewers clearly visualize how the heart and lungs work together to keep us alive with every single beat. 🎥 Video created by Dr. Bahaa N Dmour, CEO & Founder of Smart Doctor - - - - #pulmonaryhypertension #heartanatomy #3danimation #cardiology #fblifestyle #anatomy #heart #cardio #meded #education #aorticvalve #smartdoctor1 #medicina #pregnant #pregnancy

Atherosclerosis, or clogged arteries, is a slow disease where plaque builds up inside artery walls. This plaque is not just fat but a mix of cholesterol, calcium, waste, and clotting proteins that harden over time and restrict blood flow. It begins when the inner lining of an artery is damaged by things like high blood pressure, smoking, diabetes, or excess cholesterol. The immune system responds by sending white blood cells that swallow oxidized “bad” cholesterol, turning into foam cells. These clump together and form fatty streaks, which grow into larger plaques covered by a fibrous cap. As plaques enlarge, arteries stiffen and narrow, reducing oxygen supply to organs. The greatest danger comes if a plaque ruptures, since the contents trigger sudden clotting that can block the artery completely and cause a heart attack or stroke. Key risks include high LDL cholesterol, hypertension, smoking, diabetes, obesity, inactivity, and poor diet. Age and genetics play a role too, but lifestyle changes like exercising, eating well, and controlling blood pressure and cholesterol can greatly lower the risk.

🩸 Saúde em Foco: O Poder do Sistema Cardiovascular! 🫀 Você sabia que para o corpo humano funcionar como uma máquina perfeita, todos os órgãos e sistemas precisam receber sangue rico em glicose, gorduras, proteínas e outros nutrientes essenciais? Isso é o combustível que mantém tudo rodando! 💪 Mas não para por aí: uma drenagem adequada, com a retirada do excesso de sangue dos órgãos, também é fundamental para evitar inchaços e problemas. Por isso, a eficiência do sistema cardiovascular – composto pelo coração e pelos vasos sanguíneos arteriais e venosos – é crucial! Ele garante que o sangue chegue onde precisa e volte de forma equilibrada. ❤️ E olha só esses números impressionantes: a cada contração cardíaca (batimento), o coração bombeia cerca de 70 ml de sangue. Em um minuto, com uma média de 70-80 batimentos, isso chega a aproximadamente 5 litros de sangue circulando pelo corpo! 😲 Incrível, né? Mantenha seu coração forte com hábitos saudáveis! 🏃‍♂️🥦 #SistemaCardiovascular #SaudeDoCoracao #CirculacaoSanguinea #NutrientesEssenciais #VidaSaudavel AnatomiaHumana BemEstar Saude CoracaoForte

Blood flow 🩸 #blood #bloodflow #humanbody #medicine #medical #medicalstudent #medicalschool #medicalscience #medicaleducation #biology #biologystudent #biologylab #biologyclass #biologylovers #scientist #sciencefacts #sciencefiction #scienceillustrations #science #sciencemm Credit: @facts_and_stuff_by_d Follow: @science.mm_

Nicotinic acetylcholine receptors (nAChRs) play a crucial role in neuromuscular signaling at the neuromuscular junction (NMJ), mediating fast synaptic transmission between motor neurons and muscle fibers. In myasthenia gravis, autoantibodies target these receptors on the muscle fiber sarcolemma, reducing their availability and impairing signal transmission, leading to muscle weakness and fatigue. The cycle of acetylcholine (ACh) release remains intact, but the diminished receptor response disrupts normal muscle contraction. Meanwhile, neurotransmitters such as norepinephrine and serotonin influence autonomic and central nervous system functions, while histamine plays a role in immune responses and neurotransmission.

Lower Leg Muscles: The “Second Heart” of Your Body The calf muscles play a vital role in pumping blood back to the heart, improving circulation, reducing swelling, and supporting endurance during walking and exercise. Strong, active lower legs mean better blood flow, balance, and overall mobility. 🦵 Keep your second heart strong—move regularly 📞 Consult / Guidance: +91-7082338057 Keywords: Lower leg muscles, calf muscle pump, second heart of body, blood circulation, venous return, leg strengthening, mobility support, injury prevention, physiotherapy education, muscle health #BodyAwareness #PhysiotherapyEducation #HealingHands