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
Endocrine System – Hormone Cascades (Part 2)
More than 27 million Americans have some type of thyroid disease. In the 24th video in a series of 47, scholars see how the hypothalamus-pituitary-thyroid axis works in the human body. The narrator then explores what happens to the body...
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...
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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...
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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...
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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
Endocrine System – Glands and Hormones (Part 1)
Hug it out! Hugging releases oxytocin, a hormone proven to reduce swelling, thus hugging can heal physical wounds faster. Hormones control many things in the body, from healing it to causing emotions, so understanding more about them is...
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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...
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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.
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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...
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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
ATP and Respiration
The Krebs cycle is the focus of a video that shows how ATP, or adenosine triphosphate, is made by the body through the complex processes of glycolysis, the Krebs cycle, and the electron transport chain.
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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