A Capella Science
Work From Home: Physics Version (Fifth Harmony Parody)
An explanation of work-energy and simple machines, to the tune of Fifh Harmony's "Work from Home"
Curated Video
Muscle Contraction Made EASY: What REALLY Happens During Exercise
How do muscles actually contract? There's a lot involved in the process. And in this video, we talk about muscle contraction at the molecular level. We'll discuss sarcomeres, actin, myosin, the muscle action potential and the roles of...
Curated Video
042 How Calcium ion release results in Muscle Contraction
In this video, I show how the release of Calcium ions from the sarcoplasmic reticulum results in skeletal muscle contraction at the level of the sarcomere. Enjoy
Curated Video
Action Potentials and Contraction in Cardiac Muscle Cells
In this episode, I show how the Action potential is generated in cardiac muscle cells and how this results in Contraction of the Heart. When the action potential happens, calcium ions are released from the Sarcoplasmic reticulum, causing...
Curated Video
How Creatine REALLY Works - The Biology Behind It
Have you ever wondered what creatine is and how it works, then this video is for you. I'll explain the biology behind creatine in the context of how muscle contraction happens. Enjoy!
Curated Video
041 An Introduction to Skeletal Muscle Contraction
In this episode, I start talking about skeletal muscle contraction, by giving a general introduction into how muscle contraction happens. I deal with how the action of actin and myosin in the sarcomere results in movement. Enjoy!
Curated Video
043 The details of Muscle Contraction
In this video, I go into the nitty gritty details of how muscle contraction works at the level of actin and myosin in the Sarcomere. I deal with words like troponin and tropomyosin, sarcoplasmic reticulum and Terminal Cisternae. Fun...
Curated Video
Regulating Stroke Volume, Skeletal Muscle Pump and Frank-Starling Mechanism
In this video, I talk about some of the things the body does to regulate stroke volume. I talk about the skeletal muscle pump and how that increases venous returns and about how the increased venous return results in a stronger...
Curated Video
Drugs That Affect the Cardiovascular System
The circulatory system, like every other system in the body, is very important. And when there are problems with your cardiovascular system, your doctor may prescribe various medications to help. Let's take a look at five kinds of...
Curated Video
Muscles for Locomotion - Section 34.3
What would the skeletal system be without muscles to move our bones. Muscles are an essential part of what makes us humans and in this lecture, I talk about the three types of muscle, and more importantly, how they work. How does muscle...
Catalyst University
Muscle Physiology: Troponin, Tropomyosin, and Myosin Cross-Bridge Cycle
Muscle Physiology: Troponin, Tropomyosin, and Myosin Cross-Bridge Cycle
Planet PE
BTEC SPORT Revision- muscular system effects of single exercise session
In this video i take you through the effects of a single exercise session on the muscular system. We look at each of the different effects and how you should describe them in your BTEC level 3 exam .
Learning Mole
Nutrition in Food
This kitchen science video lesson is all about nutrition in food. Students will love this engaging and interactive video as they learn about science they can do at home.
Professor Dave Explains
Types of Tissue Part 3: Muscle Tissue
With epithelial tissue and connective tissue down, it's time to learn about the third type of tissue, and that's muscle tissue. This makes up all the muscles in our bodies, and it comes in three types. Those are skeletal muscle, cardiac...
Professor Dave Explains
The Mechanism of Muscle Contraction: Sarcomeres, Action Potential, and the Neuromuscular Junction
We've learned about the types of muscle, including skeletal muscle, and we know then when these muscles contract, we are able to move our bodies around. But how exactly does this happen on the molecular level? There is an astonishing...
Professor Dave Explains
The Muscular System
Now that we know about muscle tissue, let's see how this is arranged to form the muscular system, the incredible network of muscles that covers the skeletal system so that it can pull on bones and allow us to move around at will. There...
Curated OER
The Muscular System
Muscles and the chemicals myosin and actin are described in the sliding filament theory by Paul Andersen using pictures on his Smart Board. Give your young scientists a clear idea of muscle contraction by showing this video.
Curated OER
Human Body - Strength - Part 2/4
When a hiker gets trapped under a one-and-a-half ton piece of sandstone, he is shockingly able to throw off the slab. Because we normally use only one-third of our muscle fibers at a time, the potential for more is available in...
Khan Academy
Khan Academy: Biology: Tropomyosin and Troponin
An explanation of muscle contraction with tropomyosin and troponin. [9:22]
Khan Academy
Khan Academy: Biology: Role of the Sarcoplasmic Reticulum in Muscle Cells
A foundation for understanding how the nervous system signals for a muscle to contract. [14:42]
Khan Academy
Khan Academy: Tropomyosin and Troponin
Tropomyosin and troponin and their role in regulating muscle contraction. How calcium ion concentration dictates whether a muscle is contracting or not.
Sophia Learning
Sophia: Muscle Contractions: Macro View
A narrated tutorial illustrating how skeletal muscles contract to allow the body to move. [3:44]