The second system we will be learning about is the Muscular System....it works right along side the skeletal system. Watch these two videos:
https://app.discoveryeducation.com/player/view/assetGuid/B18BF687-72C2-4219-ADB5-4CFF92926674
http://app.discoveryeducation.com/player/view/assetGuid/4F0C6A44-CB27-4CE6-8E35-142A2FC947D3
https://app.discoveryeducation.com/player/view/assetGuid/B18BF687-72C2-4219-ADB5-4CFF92926674
http://app.discoveryeducation.com/player/view/assetGuid/4F0C6A44-CB27-4CE6-8E35-142A2FC947D3