Curated OER
The Strength of the Muscular System
Seventh graders investigate the strength of the muscular system. They explore voluntary and involuntary muscle movement and discuss the types of muscles: cardiac or heart, skeletal, and smooth. They visit stations to answer questions...
Biology Pages
Kimball's Biology Pages: Muscles
A thorough discussion of the skeletal muscle, smooth muscle and the cardiac muscle. Muscular diseases are highlighted in this site as well.
Library of Congress
Loc: Everyday Mysteries: What Is the Strongest Muscle?
There are a variety of ways one can look at what might be the strongest muscle in the body. This site defines the various types of muscles and goes on to explain which would be considered the strongest.
OpenStax
Open Stax: Anatomy and Physiology: Overview of Muscle Tissues
This site provides information regarding the three types of muscle tissues: skeletal muscle, cardiac muscle, and smooth muscle.
CK-12 Foundation
Ck 12: Life Science: 11.10 Skeletal Muscles
Learn about the skeletal muscles of the human body.
Science Bob Pflugfelder
Science Bob: Body Zone: The Muscular System
This introduction to the muscular system of the body describes the three different types of muscles: smooth, skeletal, and cardiac.
Science4Fun
Science4 Fun: Muscular System
What is the muscular system? Learn how muscles work, the different types of muscles, and how exercising effects muscles.