How We Move: The Gross Anatomy of Motion

Begin to explore the fascinating skeleton of the human body, the bones of the leverage systems that cause our movements. But did bones evolve for the purpose of moving an organism along? Or might bones have evolved as a response to a completely different need-One you might never have considered?

When we consider our anatomical joints, we usually think of movement-the elbow, knee, wrist, etc. But as you'll discover, our bodies contain many joints that provide only limited movement, and some that do not move at all. As you learn about the ligaments, tendons, cartilage, and bursae that keep us moving, you'll also discover why some of our joints are only temporary.

Explore the six categories of our freely movable synovial joints, the fulcrums of our bodies leverage systems. Using a variety of graphic aids, you'll visualize the joints-from those that allow flat surfaces to simply glide over each other to the ball-and-socket joints that allow movement through all three dimensions.

Explore the three types of muscle tissue that move our bodies, whether voluntarily or involuntarily. Learn the major functions of skeletal muscle, which not only moves our skeletal system but also keeps it still and stable, provides as much as 85% of our normal body heat, and regulates glycemic control.

Begin to examine two of the primary divisions of the nervous system, the central and peripheral. Learn about the cranial nerves that govern functions in the head and neck and the spinal nerves that control skeletal muscles and receive sensations from the trunk and limbs.