Contraction of Muscle
In this biology worksheet, students examine the internal functions of the human body while considering the factors needed to explain the physiological reactions.
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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...
11 mins 9th - 12th Science CCSS: Adaptable
Tropomyosin and tropin and their tole in regulating muscle contraction
To fully understand the actions of the muscle cells in overall contraction, students should watch this video which combines a recap of the previous video and a description of the interactions between the main proteins. It will be...
9 mins 10th - 12th Science
Role of the Sarcoplasmic Reticulum in Muscle Cells
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...
15 mins 10th - 12th Science