SciShow
Why Do Bug Bites Itch?
Hank explores a vexing question asked at picnics and beach parties everywhere: Why do bug bites itch? To help you understand the answer, he takes you into the blow by blow of a bug bite which, we warn you, is pretty horrifying.
SciShow
The Science of the Cinnamon Challenge
Hank explains the science behind the "cinnamon challenge," and reveals why it is nearly impossible to complete.Do not attempt the cinnamon challenge! Instead, why not just watch some videos of the thousands of YouTubers failing at it!...
Crash Course
The Digestive System: CrashCourse Biology
Hank takes us through the bowels of the human digestive system and explains why it's all about surface area.
Professor Dave Explains
Phylum Bryozoa: The Moss Animals
Bryozoans are some of the strangest animals in the world, part of the clade Lophophorata. Bryozoans are colonial moss animals, but what does this mean? Let's learn about them together!
Professor Dave Explains
Phylum Annelida Part 3: Oligochaeta and Hirudinea (Segmented Terrestrial/Aquatic Worms and Leeches)
With the marine segmented worms covered, let's get a closer look at Oligochaeta and Hirudinea, which include the familiar earthworms, and the leeches. The anatomy and physiology of the common earthworm is actually quite fascinating,...
Curated Video
Digestive System
“Digestive System” identifies the parts and purposes of the human body’s digestive system.
Institute of Human Anatomy
The Anatomy and Importance of the Epiglottis
This video explains why and how things can go down the wrong tube when eating or drinking. It provides a detailed anatomy lesson, focusing on the role of the epiglottis in protecting the airway from food or drink entering the respiratory...
Institute of Human Anatomy
Understanding the Nasopharyngeal Swab
This video shows a medical professional demonstrating and explaining the nasopharyngeal swab used for COVID-19 testing, using a cadaver and a volunteer. The video also includes an anatomy lesson on the nasal cavity and pharynx to show...
Curated Video
Sword Swallowing: A Look into the History and Risks
Learn about the fascinating history and technique of sword swallowing. The video emphasizes the risks involved and strongly discourage anyone from attempting it at home. However, they also highlight the surprising contributions sword...
CTE Skills
HST-AP Introduction to the Digestive System
The Digestive System is also known as the “gastrointestinal system”. This system fulfills two of the basic and essential requirements for being alive… Food intake and Waste elimination. In this video we will be discussing the functions...
Catalyst University
Intro to Deglutition & the Pharyngeal Constrictors [OINAs]
In this video, we introduce deglutition (swallowing) and all major events that must occur in from mouth → laryngopharynx. Then we explore the structure and functions of the pharyngeal constrictors: origins, insertions, innervation,...
Catalyst University
Deglutition | Muscles of the Palate [OINAs]
In this video, we explore the structure and functions of the major pharyngeal palate muscles: origins, insertions, innervation, actions, and blood supply.
The Noted Anatomist
Cranial nerves IX, X, XI & XII
This is a brief tutorial covering the glossopharyngeal, vagus, spinal accessory and hypoglossal nerves.
Catalyst University
Cranial Nerve X - Vagus Nerve | Introduction + Origin from Medulla
Part 1 on a miniseries over the Vagus Nerve This video is an introduction to cranial nerve X, the vagus nerve. Specifically, we will cover the origin of the vagus nerve from the medulla.
Professor Dave Explains
Phylum Gnathostomulida: Jaw Worms
Gnathostomulida have surprisingly large and powerful jaws for their size, which has given them the popular nickname, "jaw worms". The discovery of these marine microorganisms just a few decades ago indicated that there may be an...
Curated Video
059 An Introduction to the Respiratory System
IMPORTANT: There was one error in this video. The pulmonary ARTERY takes the deoxygenated blood from the right ventricle to the lungs and the pulmonary VEIN brings the oxygenated blood back to the left atrium. I said those two things...
Professor Dave Explains
A Closer Look at the Digestive Tract
We've already learn a lot about the digestive system, which is comprised of the gastrointestinal tract and some accessory organs. But just as we've done for the heart and the brain, let's get a better sense of what this system really...
Science ABC
Respiratory System: From Inspiration to Expiration Explained in Simple Words
The respiratory system is composed of the nose or nasal cavity, the pharynx, the larynx, the trachea, the bronchi, and the lungs. The respiratory system's functions are gaseous exchange, inhaling oxygen and exhaling out carbon dioxide,...
Catalyst University
Anatomy & Physiology of the Oral Cavity & Pharynx
In this video, we discuss the functions of the oral cavity and its accessory organs (teeth, tongue, salivary glands).
Kenhub
Organs of the respiratory system
Anatomy and function of the main organs of the respiratory system.
msvgo
Digestive System-Earthworm, Cockroach and Frog
This nugget describes the organs that form the digestive systems of earthworm, cockroach and frog.
Professor Dave Explains
The Digestive System
We eat food every day, and most of us are aware that we do this so that our body can absorb nutrients that are inside the food, which we need to stay alive. But how does this work? What goes inside the body in between the time we put a...
Curated OER
The Respiratory System
Respiratory systems are different in worms, fish, and human lungs, and each are explained by Paul Andersen with his fabulous SMART Board. How are these respiratory systems similar? Keeping breathing surfaces moist is essential in all...