Anatomy of a Muscle Cell

Twelfth graders investigate specialized structures in both plants and animals. They relate structure to function, as they determine why the specialization is necessary and useful to the living organisms involved. They use microscopes...

As part of a study of muscles and muscle cells the narrator of this insightful video begins by reviewing the three types of muscle — smooth, cardiac, and skeletal. He then explains how actin and myosin play important roles in those...

Many of the concepts that are mentioned as an aside in previous videos are re-introduced here. By listening to Salman's recap of an action potential, students will understand how a nerve impulse can stimulate the release of...

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...

As your class views each slide, they will be introduced to the organelles and structure of the cell.  Details about structure and function are given and also some trivia about their frequency and population. There is also some...

This is a fabulous presentation which should reinforce all aspects of muscle construction on a gross anatomical and micro level. There are slides to help understanding with the muscle fiber anatomy, and many labelled diagrams to explain...

We're kicking off our exploration of muscles with a look at the complex and important relationship between actin and myosin. Your smooth, cardiac, and skeletal muscles create movement by contracting and releasing in a process called the...

Does pain really indicate gain when it comes to muscle aches? A short, animated video details the science behind the pain associated with muscle fatigue.

Even today's stem cells have a history—and it's more than 30 years old! Learn how stem cell lines grow in a lab. Observe the various experiments completed to determine how cells grow in human embryos.

Skeletal or striated, muscles are shown down to the chemical components. All the fibers that make up a muscle cell are described and animated. Use this to illustrate the parts of skeletal muscles for your anatomy or biology classes.