security threat meaning, security threat definition | English Cobuild dictionary. security. 1 n-uncount Security refers to all the measures that are taken to protect a place, or to ensure that only people with permission enter it or leave it.
A muscle expands when it relaxes. The muscles in our bodies are attached to bones. They help the bones move, much like strings help a puppet move. But muscles can pull in only one direction. They cannot push.Each bone is usually attached to a pair of muscles.ones and muscles work like  ropes and levers. The muscles can only pull against the bone not  push it. So to bend your arm at the elbow, the â¦ bicep pulls the  lower arm up. To streighten your arm, the tricep pulls the lower  arm back out. the muscles have to work in pairs opposite each other  to make movement.
Tendons are a connective tissue which connect the bones to muscles. Tendons are what enable the bones and muscles to move and functions together. So, basically, without the tendon, the bones and the muscles are not connected to each other. So when the muscle moves,the bone also moves with it, making your body move.nswers. Best Answer: Tendons connect bones to muscle. Without tendons, the bones cannot move on its own when the muscles move because the muscles and the bones are independent of one another. With tendons around, the bone and the muscle are connected.