Components of blood (article) | Khan Academy
The different components that make up blood. Plasma, white blood cells, red blood cells, platelets.
Circulatory system and the heart - Khan Academy
Hemoglobin is contained within red blood cells to prevent blood from becoming too thick. The blood flows from the heart to the lungs via the pulmonary artery, gets oxygenated, and returns to the heart via the pulmonary vein.
Flow through the heart (video) | Khan Academy
Learn how blood flows through the heart, and understand the difference between systemic and pulmonary blood flow. Rishi is a pediatric infectious disease physician and works at Khan Academy.
Red blood cells (video) | Human biology | Khan Academy
Lesson 1: Circulatory and pulmonary systems. The lungs and pulmonary system. Red blood cells. Circulatory system and the heart.
What's inside of blood? (video) | Khan Academy
This video provides a detailed look at the composition of blood, explaining the roles of plasma, white blood cells, and red blood cells. It also discusses the process of centrifugation, the concept of hematocrit, and the conditions of anemia and polycythemia.
Blood groups - Khan Academy
This exercise deals with the ABO and the Rh blood grouping systems. Skip to main content If you're seeing this message, it means we're having trouble loading external resources on our website.
Blood cell lineages (video) | Khan Academy
Hematologic system questions. Mini MCAT passage: Symptoms of low platelet counts. What's inside of blood? Hemoglobin moves O2 and CO2. Bohr effect vs. Haldane effect. Blood types. How do we make blood clots? Coagulation cascade. Life and times of RBCs and platelets.
Blood types (video) | Khan Academy
Learn about the unique properties of blood types and their importance in medical procedures like transfusions. Discover the role of A and B molecules in determining blood types, and how antibodies interact with these molecules.
Adaptive immunity | Immune response (article) | Khan Academy
Course: How does the human body work? - Class 12 > Unit 2. Lesson 2: Types of immunity and the immune system. The immune system review. Types of immune responses: Innate and adaptive, humoral vs. cell-mediated. Active & Passive immunity. Active and passive immunity. Adaptive immunity. Acquired immunity.
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