In this quick, easy-to-understand lesson, we learn about secondary hypertension for USMLE and medicine. Secondary hypertension is defined as high blood pressure (>140/90 or >130/80) caused by an underlying disease, medical condition, or drugs. While primary essential hypertension comprises of the majority of hypertension cases (90%), only 10% of patient cases is secondary hypertension.
Direct vs Indirect Hernia: What is the difference between direct and indirect inguinal hernias? In this easy-to-understand lesson, we explore the differences between direct inguinal hernias and indirect inguinal hernias. Overall, an inguinal hernia is a medical condition, where protrusion or bulge of abdominal contents into the groin area and/or inguinal canal. There are two types of inguinal hernias: 1) direct inguinal hernia and 2) indirect inguinal hernia.
When you hear the word “robot”, what image usually comes to mind? Is it a metallic, boxy machine? A sleek android that talks to people? A robot is a machine that is automatically operated and completes tasks in replacement for humans. Some robots are humanoid and have actions that resemble human movement, such as ASIMO (Advanced Step in Innovative Mobility), a robot created by Honda that can walk with two legs (Honda).
Microfilaments and microtubules are both important elements of the cytoskeleton, maintaining the structure and integrity of the cell, but there are several differences between microfilaments and microtubules. In this article, we share this information on microfilaments versus microtubules.
Microfilament and Microtubulues are made from different individual subunits. Microfilaments are made from ACTIN, while microtubules are made from TUBULIN.
Making up around 75% of all animal species in the world, arthropods are are a vast phylum of the kingdom Animalia. The name comes from the Greek words “arthro”, meaning joint, and “podos”, meaning legs. While they all share segmented bodies with joined legs, members in this phylum vary wildly, from butterflies and millipedes, to scorpions and lobsters. They are also all invertebrates, which means that they do not have backbones. Instead, they use hard exoskeletons to protect themselves, which are made out of chitin. Because these exoskeletons are relatively inflexible, arthropods molt as they grow larger, which means they shed their exoskeletons.
You probably go to sleep most – if not all – nights. You probably have dreamt during many of these nights. And you might feel rested every time you go to sleep. Yet did you know about the complex mental processes that happen every time we go to sleep?
What is the difference between Kwashiorkor and Marasmus? USMLE protein-energy malnutrition diseases; we explain the differences, including causes, symptoms, comparative medical charts.
The novel COVID-19 is leaving astonishing traces of deaths and illnesses as it rapidly encroaches upon our everyday lives. Schools are closed. Unemployment is surging. People experience dreadful losses of their family and friends. Luckily, however, the exponential curve of COVID-19 seems to have flattened within the past few weeks for many of the countries, and some even seem to have downward-sloping trends. So, should we feel relieved and expect the curve to hit 0 soon?
Phosphorus Part 2: Health Risks and Disadvantages. Part 1 of this article described the uses and advantages of the element phosphorus. However, there are also various health risks that come with using phosphorus in our lives.
How did flightless birds evolve? How did the evolution of the shrinking cod come to be? In this lesson, we learn about the evolution of the flightless birds, such as cormorants, and the evolution of the shrinking cod in our biology selection case studies.
Biology Unit 2 Study Guide: Basic Building Blocks of Life. Protein, lipid, nucleic acid, carbohydrate, properties of water, enzymes, organelles. With examples and answers to help make biomolecules easy to learn!
Biology Unit 1 Study Guide: Ecology and Scientific Method, including Characteristics of Life, Biodiversity, Cycles of Matter, and Global Change. With examples and answers to help make ecology easy to learn!
In this lesson, we explain the differences between flippase, floppase, and scramblase. Flippase vs Floppase vs Scramblase as lipid transporters in the cell membrane with Quick and Easy Explanation
In this lesson, we explain what types of molecules can pass through the cell plasma membrane and what are the factors that determine whether a molecule can cross a cell membrane: Quick and Easy Explanation on the Cell Membrane
In this quick and easy lesson, we explain what is the Cori cycle, how the Cori cycle works, what is its clinical significance, and where is the Cori cyle located: MCAT and USMLE medicine.
In this lesson, we will explain the differences between the upper and lower respiratory system and the differences between upper respiratory tract infections and lower respiratory tract infections.
What are the differences between the left lung and right lung? Here, we detail quick and easy to learn summary points of the right lung vs left lung. Left vs Right Lung
As the sun slowly rises in the early mornings of Japan, Kenji a young and bright high school student eagerly heads off to school. In his high-collared black uniform and with his backback strapped around his shoulders, he blends in easily among the crowd of other high school […]
Freddie is a 13 year-old schoolboy living in United Kingdom’s England. While attending secondary school and juggling schoolwork and extracurriculars, this young and talented student also enjoys channeling into his creativity by creating unique educational games and animations, shared around the world. In his latest project, “What does […]
From Superman and Wonder Woman to Captain America and Black Widow, every spectacular star-spangled superhero team seems to rock and roll with the teamwork of both the XY and XX chromosomes. While our world may not have the fantasy superhero team flying in the sky or wearing red […]
Intracellular Digestion vs Extracellular Digestion. What’s the Difference Between the Two Types of Digestion? In this article, we explore the definitions and difference between Intracellular and Extracellular Digestion.
Lovely, isn’t she? (Yes, the furry one above.) She’s Your 65-Million-Year-Old Mother. Through modern computer analysis and evolutionary data, Maureen O’Leary a researcher from Stony Brook University and her colleagues discovered the last known common ancestor of placentals (Scientific American). Modern placentals include animals such as whales, bats, […]
In this lesson, we explain an easy 5-step quick guide on the basics of how to interpret phylogentic evolutionary trees.
We explore natural selection in action with the evolution of Darwin’s Finches, Peter Grant and Rosemary Grant’s research on the Galapagos Islands
In this lesson, we explore the essential gene mutations on Drosophila flies during development and their embryology effects: gap genes, pair rule genes, and segment polarity genes.