From Academic Kids
The muscular system is the biological system of animals that allows them to move internally and externally. The muscular system in vertebrates consists of three different types of muscles: cardiac, skeletal and smooth. Cardiac muscle is a striated muscle that makes up the heart. It is the only type of muscle consisting of branching fibers. Skeletal muscle consists of voluntary muscles attached to the frame of the skeletal system enabling bodily movement. Smooth muscle is the involuntary muscle that enables the movement of internal organs. Movement of all muscles is controlled through the nervous system.
There are about 700 muscles in the human body; see List of muscles of the human body.
Clip Art and Pictures
- Anatomy Clipart (http://classroomclipart.com/cgi-bin/kids/imageFolio.cgi?direct=Anatomy)
- Anatomy Pictures and Illustrations (http://classroomclipart.com/cgi-bin/kids/imageFolio.cgi?direct=Science/Anatomy)
|Muscular tissue - Cardiac muscle - Skeletal muscle - Smooth muscle - Muscle contraction - List of muscles of the human body|
|Human organ systems|
|Cardiovascular system - Digestive system - Endocrine system - Immune system - Integumentary system - Lymphatic system - Muscular system - Nervous system - Skeletal system - Reproductive system - Respiratory system - Urinary system|