PS276 Chapter Notes - Chapter 1: Ovulation, Acne Vulgaris, Seminal Vesicle
Document Summary
During puberty (4 years or so) individual grows about 10 inches, matures sexually, develops. Changes in stature and dimensions of the body: Simultaneous release of growth hormones, thyroid hormones, and androgens stimulate rapid acceleration in height and weight (adolescent growth spurt) At time of peak height velocity (time which adolescent growing most rapidly) they are growing at same rate as a toddler. Boys peak height velocity is 4in/year, girls is 3. 5in/year. Closing of the ends of the long bones in body. Nearly half of one"s adult body weight is gained during adolescence. Growth spurt occurs 2 years earlier among girls. Much of height gain results from increase in torso length rather than leg length. Extremeties are first to accelerate in growth, then arms and legs, then torso and shoulder. Muscle tissue grows faster in boys than girls, body fat increases more for girls. Boys finish adolescence w muscle to fat ratio of 3-1, girls 5-4.
