Thyroid hormone continues to influence development post-natally.
Duration: 2 weeks
Sadler TW. 2000. Susceptible periods during embryogenesis of the heart and endocrine glands. Environ Health Perspect 108 (suppl 3):555-561.
Adult structure of the adrenal gland is not attained until puberty.
Duration: 2 weeks
Sadler TW. 2000. Susceptible periods during embryogenesis of the heart and endocrine glands. Environ Health Perspect 108 (suppl 3):555-561.
The definitive cortex gives rise to the presumptive zona glomerulosa and zona faciculata, which are present at birth, and the zona reticularis, which develops by the third year of life. The suprarenal glands (fetal adrenals) are 10 to 20x larger than adult glands, compared to body weight, due to a large fetal cortex. The fetal cortex regresses after birth.
Moore KL, Persaud TVN. 1998. The Developing Human: Clinically Oriented Embryology. 6th ed. Philadelphia: WB Saunders Co.