1 / 11

Introduction to the Muscular System

Introduction to the Muscular System. http:// www.youtube.com / watch?v =RsWNyqnHQ2I. Muscle Types. Skeletal – Moves bones Smooth – moves internal organs Cardiac – moves heart. Skeletal Muscles. Enable movement by pulling bones Made mostly of proteins

doris
Download Presentation

Introduction to the Muscular System

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Introduction to the Muscular System

  2. http://www.youtube.com/watch?v=RsWNyqnHQ2I

  3. Muscle Types • Skeletal – Moves bones • Smooth – moves internal organs • Cardiac – moves heart

  4. Skeletal Muscles • Enable movement by pulling bones • Made mostly of proteins • Striated – lines or stripes on tissue that make it strong and enable it to contract • Exert large forces for a short period of time • Strong but get tired easily • Voluntary

  5. Skeletal Muscle types • Flexors and extensors - work in opposing pairs - one contracts and the other relaxes - responsible for gross motor movement like dancing, walking, - responsible for fine motor movement like writing, painting, playing video games

  6. Skeletal Muscle Types • Levators and Depressors - levator = lifting - depressors = bringing back down

  7. Muscle pairs

  8. http://health.howstuffworks.com/human-body/systems/musculoskeletal/adam-200006.htmhttp://health.howstuffworks.com/human-body/systems/musculoskeletal/adam-200006.htm

  9. Smooth Muscle • Not striated • Apply weaker forces • Have great endurance – can work for a long period of time without a lot of rest – digestion can take up to 8 hours! • Involuntary • Found in the internal organs – digestive organs and blood vessels

  10. Cardiac Muscle • Some striations • Found ONLY IN THE HEART! • Strong force and great endurance • Continuously working!!!

  11. All Muscle Cells Must Rest!

More Related