Muscular system

Muscle

an organ that can relax and contract, which moves your body.

Voluntary muscles

muscles that you can control (bicep)

Involuntary muscles

Muscles you cannot control (heart)

Skeletal muscle

Moves bones

voluntary

Tendons connect muscle to bone

contract quickly and tire more easily

look stupid or straight

Bicep, quadriceps, pectoral

You move because pairs of muscles work together

one end of the muscle attaches at the end of a bone by a tendon

The opposite end of the muscle attaches to an adjacent bone

muscles aways pull against opposite bone

Smooth muscle

regulates blood pressure, digestion, and other internal functions

involuntary

Muscles in the stomach, bladder, blood vessels

Cardiac muscle

found only in the heart

involuntary

can beat independently from input from the brain

striated (stopped