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...
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.
Teach Engineering
How Antibiotics Work
Take two pills and call me in the morning. The first lesson 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 get you feeling...