SINOATRIAL NODES
\sɪnˈə͡ʊtɹɪəl nˈə͡ʊdz], \sɪnˈəʊtɹɪəl nˈəʊdz], \s_ɪ_n_ˈəʊ_t_ɹ_ɪ__ə_l n_ˈəʊ_d_z]\
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The small mass of modified cardiac muscle fibers located at the junction of the superior vena cava and right atrium. Contraction impulses probably start in this node, spread over the atrium and are then transmitted by the atrioventricular bundle to the ventricle.
By DataStellar Co., Ltd
Word of the day
Snake's-head
- Guinea-hen flower; -- so called in England because its spotted petals resemble the scales of a snake's head.