Muscle

• Muscle cells: ‘fibres’, elongated, contain myofilaments (made of actin and myosin) which allow muscle tissue to contract; there are 3 types of muscle tissue, skeletal, cardiac, and smooth (all well vascularised, lots of blood vessels)
• Skeletal - Joined to bones by tendons, these muscles, when they contract, cause bones to move
• Cardiac - Makes up the walls of the heart and allows the heart to beat in a coordinated way and pump blood
• Smooth - Occurs in the walls of the small intestine, blood vessels, uterus and urinary tracts and it propels substances along these tracts