Howard Hughes Medical Institute
How a Heart Attack Occurs
Heart disease causes more deaths in both men and women in the United States than any other factor, buy many people don't fully understand what causes a heart attack. A brief animation demonstrates the slow buildup of plaque, a blockage...
Teacher's Pet
Salts in Solution
Neutralization always happens when you mix an acid with a base, right? Well ... sort of. Expand the class' view of acid-base chemistry using an informative video. The narrator shows examples of salt hydrolysis, how buffers influence...
Crash Course
The Nervous System – Action! Potential! (Part 2)
There are about 100,000 chemical reactions happening in your brain every second to help you sense and respond to the world around you. After a brief review of electricity, the narrator explores the action potential neurons used to sense...
Crash Course
Peripheral Nervous System
The brain does not feel pain, which is why surgeons can perform brain surgery without anesthesia or while the patient is awake. Pupils see how the peripheral nervous system allows humans to feel pain. The narrator explores the afferent...
Crash Course
Immune System (Part 2)
Scientists are creating an experimental vaccine for the Ebola virus, which in clinical trials, is working. Such vaccines are the topic of a video about the adaptive immune system. The narrator discusses how a body reacts to pathogens in...
Crash Course
Tissues – Epithelial Tissue (Part 2)
Epithelial tissues plays a variety of roles in the human body, including covering, lining, making a barrier, protection, excretion, filtration, absorption, and sensation. The video teaches high schoolers about epithelial tissue and its...
Crash Course
The Nervous System (Part 1)
If you line up all of the neurons in your body, they would stretch almost 600 miles! The seventh video in a series of 47 and explore the nervous system, both central and peripheral. The narrator teaches the organization and composition...
Crash Course
The Nervous System – Synapses! (Part 3)
The narrator of this short video breaks down synapses and how they work in video number 10 in a series of 47 about the human body. It specifically focuses on electrical and chemical synapses and how they work, and ends by exploring...
Crash Course
Sympathetic Nervous System
The sympathetic nervous system's job is to prepare the body in situations that threaten your survival. Video 14 in a series of 47 about the body specifically focuses on the sympathetic nervous system and stress. The narrator explains how...
Crash Course
Autonomic Nervous System
The sympathetic nervous system is what puts a person into fight or flight mode in scary situations. The 13th video in a series of 47 covers the autonomic nervous system, specifically how the sympathetic and parasympathetic systems work...
Crash Course
Immune System (Part 1)
A lack of good sleep weakens your immune system by making you more susceptible to infections and making recovery time longer. Video 45 in a series of 47 focuses on the immune system. Pupils hear how the body defends itself, from its...
Crash Course
Immune System (Part 3)
Who loves their immune system ... antibody? Antibody? The last video in a series of 47 takes a look at the cellular immune system. Learners see how specific cells in the body attack other body cells that are infected with pathogens. To...
Crash Course
The Skeletal System
Humans have 54 bones in their hands, fingers, and wrists, allowing for a variety of movement. The 19th video in a series of 47 introduces learners to the anatomy of the skeletal system. The narrator teaches about flat, short, and...
Crash Course
Muscles – Organismal Level (Part 2)
Humans use 200 muscles to take one step — that's a lot of muscles! Learners see how skeletal muscles work to pull on bones, creating movement. The narrator then explores motor units, muscle twitches, impulses, contractions, and isotonic...
Crash Course
Digestive System (Part 2)
It takes about seven seconds for food to move from the mouth to the stomach. Pupils follow food from the mouth through digestion, exploring where mechanical and chemical digestion occur. Saliva, enzymes, acids, and chyme are a small...
Crash Course
Metabolism and Nutrition (Part 1)
Use the 36th video of 47 to explore metabolism. Individuals begin to understand what metabolism is, physiologically what it does, and how anabolic and catabolic reactions assist in digestion.
Crash Course
Metabolism and Nutrition (Part 2)
The 37th video in a series of 47 about the human body delves into metabolism. Scholars review cellular respiration and see how it, ATP, and glycolysis play a role in metabolism and how all of this relates to sugar levels in the body.
Crash Course
Urinary System (Part 2)
The narrator of this video details the urinary system by looking at how bodies regulate the production of urine and how urine is stored and excreted from the body. The narrator finishes by discussing the nervous system's role in the...
Crash Course
Reproductive System – Female Reproductive System (Part 1)
Pupils learn about menstruation and the female reproductive system in the 40th video of 47. Beginning with the anatomy and moving into hormones and ovulation, the narrator teaches an abundance of vocabulary and information regarding...
Teach Engineering
How Antibiotics Work
Take two pills and call me in the morning. The first instructional activity in a short unit of four introduces class members to delivery methods of medicines. The instruction introduces the question of which delivery method is best to...
Crash Course
Big Guns: The Muscular System
Wanna know what makes people smile? Face muscles. In this short video, learners have an opportunity to view what muscles look like and how they provide humans with movement by contracting and relaxing.
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