Muscle

• Muscle tissue contains muscle cells/fibers which are striated or unstriated.
• Muscle cells connected to each other and contact as a whole.
• Skeletal muscle (voluntary and striated) - movement of the skeleton.
• Smooth muscle (involuntary and unstriated) - movement of blood along vessels.
• Cardiac muscles (voluntary and striated) - forms the heart and provides movement of blood through the heart.
• Sarcoplasmic reticulum is only found in muscle cells and is similar to the endoplasmic reticulum. Main role is to store calcium ions that are released during contraction.
• Actin and Myosin work together to allow muscles to contract.
• Myosin is a molecular motor, using chemical energy to produce movement.