- Created by: daisy yemm
- Created on: 21-02-19 12:05
Types of muscles
There are 3 different types of muscles in the body:
- Smooth muscle contracts without conscious control. It's found in walls of internal organs (apart from the heart) such as the stomach, intestine and blood vessels.
- Cardiac muscle contracts without conscious control. It is only found in the heart.
- Skeletal muscle is the type of muscle you use to move, e.g the biceps and triceps move the lower arm.
Role of skeletal muscle:
Skeletal muscles are attached to bones by tendons. Ligaments attach bone to bone, to hold them together. Pairs of skeletal muscles contract and relax to move bones at a joint - the bones of the skeleton are incompressible so they act as levers, giving the muscle something the pull against.
Muscles that work together to move a bone are called antagonistic pairs. The contracting muscle is called the agonist and the relazing muscle is called the antagonist. E.g the biceps and triceps work together - as one relaxes the other contracts.