A normal adult thyroid gland weighs 10 to 20 g and receives blood from bilateral superior and inferior thyroid arteries and a small artery called the thyroid ima. The thyroid secretes two hormones. Thyroxine (T 4) makes about 90% of hormone production, and triiodothyronine (T 3) produces the other 10%.
Fast Growing Cold Hardy Tree. - Grows up to 5 ft per year! The Quaking Aspen is well known for thriving in cold climates and poor soil... but it's also a brightly colored tree with many desirable characteristics.
Pinus strobus grows approximately 1 m (3.3 ft) per year between the ages of 15 and 45 years, with slower height increments before and after that age range. The current tallest eastern white pines reach between 50â57.55 m (164.0â188.8 ft), as determined by the NTSâNative Tree Society.