Muscle tissue one of three major types of muscle, the others being skeletal and smooth muscle. These three types of muscle all form in the process of myogenesis. The cells that constitute cardiac muscle, called cardiomyocytes or myocardiocytes, predominantly contain only one nucleus, although populations with two to four nuclei do exist. The myocardium is the muscle tissue of the heart, and forms a thick middle layer between the outer epicardium layer and the inner endocardium layer. Coordinated contractions of cardiac muscle cells in the heart propel blood out of the atria and ventricles to the blood vessels of the left/body/systemic and
Human Tissue Authority and tissue from the living or the deceased for specified health-related purposes and public display. It also covers the removal of such material from the deceased. It lists the purposes for which consent is required (the "scheduled purposes"). The Act notably prohibited private individuals from covertly collecting biological samples, such as hair and fingernails, for DNA analysis, but excluded medical and criminal investigations from the offence. According to the Human Tissue Act, the HTA and its authority are governed by a code of conduct for the handling of human tissue, and the bodies of the deceased, but does not give