Question: Dance of the Drunk Mantis is a 1979 Hong Kong kung fu comedy film directed by Yuen Siu-tien's real life son Yuen Woo-ping, this was Yuen Siu-tien's final film appearance before his death on 8 January 1979 from a heart attack, Myocardial infarction (MI), commonly known as a heart attack, occurs when blood flow decreases or stops to a part of the heart, causing damage to what?
Context: Shaolin Drunkard (; Orig.  Tian shi zhuang xie, a.k.a. "Wu Tang Master", a.k.a. "Miracle Fighters 2") is a 1983 Kung Fu comedy directed by Yuen Woo-ping, written by Yuen Woo-ping and Chung Hing Chiu, and starring Cheung-Yan Yuen, Eddy Ko, and Shun-Yee Yuen. The Myocardial Ischaemia National Audit Project (MINAP) (previously known as the "Myocardial Infarction National Audit Database") began in late 1998 when a broadly based steering group developed a dataset for acute myocardial infarction (AMI).  This allowed clinicians to examine the management of myocardial infarction within their hospitals against targets specified by the National Service Framework (NSF) for coronary heart disease.  The audit project produces annual reports on "How the NHS manages heart attacks" to show the performance of hospitals, ambulance services and cardiac networks in England and Wales against national standards and targets for the care of heart attack patients. Dance of the Drunk Mantis () is a 1979 Hong Kong kung fu comedy film directed by Yuen Siu-tien's real life son Yuen Woo-ping, starring Yuen Siu-tien, Hwang Jang Lee, Linda Lin, Yuen Shun-yee, Charlie Shek and Yuen Kwai.  This was Yuen Siu-tien's final film appearance before his death on 8 January 1979 from a heart attack. Yuen Woo-ping (; born 1945) is a Chinese martial arts choreographer and film director, renowned as one of the most successful and influential figures in the world of Hong Kong action cinema.  He is one of the inductees on the Avenue of Stars in Hong Kong.  Yuen is also a son of Yuen Siu-tien, a renowned martial arts film actor. Myocardial infarction (MI), commonly known as a heart attack, occurs when blood flow decreases or stops to a part of the heart, causing damage to the heart muscle.  The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw.  Often it is in the center or left side of the chest and lasts for more than a few minutes.  The discomfort may occasionally feel like heartburn.  Other symptoms may include shortness of breath, nausea, feeling faint, a cold sweat, or feeling tired.  About 30% of people have atypical symptoms.  Women more often have atypical symptoms than men.  Among those over 75 years old, about 5% have had an MI with little or no history of symptoms.  An MI may cause heart failure, an irregular heartbeat, cardiogenic shock, or cardiac arrest. Streptokinase (SK) is a thrombolytic medication and enzyme.  As a medication it is used to break down clots in some cases of myocardial infarction (heart attack), pulmonary embolism, and arterial thromboembolism.  The type of heart attack it is used in is an ST elevation myocardial infarction (STEMI).  It is used by injection into a vein. Yuen Siu-tien () (27 November 1912 – 8 January 1979) (also known as Yuan Xiaotian, Simon Yuen, Sam Seed or "Ol' Dirty") was a Hong Kong martial arts film actor in the late 1970s.  Yuen is perhaps best known as Beggar So (A.K.A Sam Seed) in three films: "Drunken Master", "Story of Drunken Master" and his final film "Dance of the Drunk Mantis".  He starred in several films with film actors like Jackie Chan and under the direction of his real life son Yuen Woo-ping. Sunny Yuen Shun-yi, also credited as Shun-Yee Yuen (born 12 June 1953) is a Chinese actor, stuntman and stunt coordinator.  He is the brother of Yuen Woo-ping and Yuen Cheung-yan.  He is also the son of Simon Yuen Siu-tien. Coronary thrombosis is the formation of a blood clot inside a blood vessel of the heart.  This blood clot restricts blood flow within the heart.  It is associated with narrowing of blood vessels subsequent to clotting. <ref name="urlThrombosis/Coronary Thrombosis"> </ref> The condition is considered as a type of ischaemic heart disease, also known as a heart attack or myocardial infarction. Drunken Master () is a 1978 Hong Kong comedy martial arts film directed by Yuen Woo-ping, and starring Jackie Chan, Yuen Siu-tien, and Hwang Jang Lee.  The film was a success at the Hong Kong box office, earning two and a half times the amount of Chan's previous film, "Snake in the Eagle's Shadow", which was also considered a successful film.  It is an early example of the comedic kung fu genre for which Jackie Chan became famous.  The film popularised the Zui Quan ("drunken fist") fighting style.  Ranked number 3 on totalfilm.com's 50 greatest kung fu movies of all time.
Answer: heart muscle