Both hyperplasia and hyperophy is found in: (A) Uterus during pregnancy, (B) Cardiac muscle in cardiomegaly, (C) Skeletal muscle in athlete, (D) Breast development in pubey
Answer is A. * Uterus during pregnancy undergoes physiological hyperophy and hyperplasia under hormonal stimuli * Cardiac muscle in cardiomegaly and Skeletal muscle in adults undergoes physiological hyperophy Striated muscle cells in both hea and skeletal muscle can only undergo hyperophy because adult muscle cells have a limited capacity to divide. Hence they are called stable cells * Breast development in pubey is a physiological hormonal hyperplasia Refer robbins 9/e p3