Muscle is formed of contractile filaments and is separated into three main types; smooth muscle, skeletal muscle and cardiac muscle.
mˈʌsəl ɪz fˈɔːɹmd ʌv kəntɹˈæktaɪl fˈɪləmənts ænd ɪz sˈɛpɚɹˌeɪɾᵻd ˌɪntʊ θɹˈiː mˈeɪn tˈaɪps; smˈuːð mˈʌsəl, skˈɛlᵻɾəl mˈʌsəl ænd kˈɑːɹdiˌæk mˈʌsəl.