standford university

This is a comprehensive study guide about the cardiovascular system tailored to for students to easily comprehend and memorize certain pathways and mechanisms of the cardiovascular system. These give a general overview so that students have a clearer picture of cardiovascular system without the presence of redundancy. this is direct to the point and is used for active recall, and easier memorization.

Apuntes completos sobre la glándula mamaria que incluyen su estructura anatómica, relaciones, irrigación, drenaje linfático e inervación. Material útil para estudiantes de medicina, especialmente en anatomía, ginecología y clínica.

Apuntes completos y organizados sobre el plexo braquial, incluyendo su formación, raíces, troncos, divisiones, fascículos y ramas terminales. Se detallan también las principales funciones motoras y sensitivas. Material ideal para estudiantes de medicina y ciencias de la salud que buscan un recurso claro para estudio, repaso o preparación de exámenes.

Documento completo de anatomía del sistema respiratorio que incluye tráquea, bronquios, pulmones, pleura y conducto torácico. Contiene información detallada sobre estructura, relaciones anatómicas, vascularización e inervación. Ideal para estudiantes de medicina y carreras de la salud que buscan material claro y organizado para estudio o repaso.

Glycogen role (storage of glucose) — Comprises glucose units stored as glycogen (mainly in liver and muscle) to buffer energy and maintain blood glucose. Glycogen synthase vs glycogen phosphorylase (opposing functions) — Liver/muscle balance glycogenesis (build) vs glycogenolysis (breakdown) to match nutrient and energy status. Liver glycogen: blood glucose support — In hepatocytes, glycogenolysis helps maintain systemic glucose availability between meals. Muscle glycogen: local fuel fo...

Gluconeogenesis (overview): Synthesis of glucose (primarily from non-carbohydrate sources) to maintain blood glucose during fasting. Primary site (liver & kidneys): Mainly occurs in liver and kidneys, with contributions from other tissues such as GI epithelium. Fasting function: Ensures continued glucose availability when dietary carbohydrate is limited. Glucogenic substrates (overview): Uses glucogenic amino acids, lactate, pyruvate, and glycerol as carbon sources. Pathway direction opposit...

TCA cycle (overview): Mitochondrial oxidation of acetyl-CoA to CO₂, generating energy carriers for oxidative metabolism. Mitochondrial location: Occurs in the mitochondria, coupling carbohydrate oxidation to the ETC. Acetyl-CoA entry: The pathway is fed by acetyl-CoA produced from earlier steps (e.g., pyruvate breakdown). CO₂ release: Progressive decarboxylation drives carbon loss as CO₂ and maintains thermodynamic direction. Energy capture (NADH/FADH₂): Produces reduced cofactors th...

Glycolysis (overview): Cytosolic breakdown of glucose to pyruvate, functioning under both aerobic and anaerobic conditions. Cytosolic location: Main reactions occur in the cytosol, separating glycolysis from mitochondrial steps. Two phases (preparatory & payoff): Glycolysis is organized into an energy-investment phase followed by an energy-yielding phase. Aerobic vs anaerobic operation: Pyruvate handling differs depending on oxygen availability, while glycolysis itself remains central. Energ...

Lecture1: covers the fundamentals of carbohydrate digestion, absorption, and initial metabolic fates. It describes how dietary carbohydrates (plant starch/cellulose, animal glycogen, and disaccharides sucrose/lactose) are hydrolyzed by salivary and pancreatic α-amylase in the mouth and small intestine, followed by brush-border disaccharidase activity to generate glucose, galactose, and fructose. It also explains mono-sugar uptake mechanisms across intestinal epithelial cells, including Na⁺...

Apuntes completos de Cinemática ideales para estudiantes de secundaria y primeros años universitarios. Incluye conceptos fundamentales, fórmulas, explicaciones claras y ejercicios resueltos paso a paso. Temas incluidos: - Movimiento y sistemas de referencia - Trayectoria, desplazamiento y distancia - Velocidad y aceleración - Movimiento Rectilíneo Uniforme (MRU) - Movimiento Uniformemente Variado (MUV) - Caída libre y lanzamiento vertical Material perfecto para estudiar rápido y ...