{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Chapter 46 Movement

Chapter 46 Movement - Chapter 46 MOVEMENT Locomotion...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 46 MOVEMENT Locomotion Movement *Movement in complex organisms includes beating of the heart, contraction of the digestive organs, etc. Locomotion is the movement of the entire body. *Locomotion occurs because of the coordinated activities of the skeletal, muscular, nervous, circulatory and etc. systems. Vertebrate Skeleton *Skeletal system functions: *Support *Protection *Lever system against which muscles pull. *2 sections: *Axial *Appendicular *Flexibility of the vertebrate skeleton is achieved by joints . Muscles Move Bones at Joints *3 types of joints, fig 46.17 *Sutures *Cartilagenous *Synovial joints Skeletal Muscles *Function: movement *Attached to bones by tendons *Attachment to the bone that does not move = origin . *Attachment to the bone that moves = insertion . *Muscles move bones by contracting or shortening. *Actions *Muscles that work together to perform the same action are synergists (muscles of the quadriceps). *Muscle that cause opposite actions are called antagonists . Ex. flexors (hamstring) and extensors (quadriceps), fig 46.18.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern