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It draws the arm forward and across the chest; and rotates inwards. This muscle helps move the rib cage during heavy breathing.
This muscle makes up a large portion of the shape and appearance of the buttocks; straightens hip.
Why aren't all your body muscles voluntary muscles?
You would have to think about everything you did, including making your heart beat, breathing, and moving food through the digestive system.
Your eyelid muscles can classified as voluntary and involuntary because
most of the time you do not control blinking, but you can if you want to.
Three main jobs of the skeletal system.
1) to shape and support your body 2)to protect the organs 3)to work with the muscular system
Two minor jobs of the skeletal system.
1) making the blood cells 2)a warehouse for fat cells, calcium, and other minerals
What does red and yellow marrow do?
Red marrow produces red blood cells. Yellow marrow stores the fat cells.
the way that our muscles look and work; good muscle tone is developed by using muscles properly.
when a muscle pushes through into another area when it's not supposed to be; blood does not flow normally
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