Hormones- chemical messengers released by endocrine glands
Steroids: powerful hormones
interact directly with the cells DNA
MAJOR ENDOCRiNE GLANDS
Hypothalamus- commander-in-chief
- controls pituitary gland and other glands
Pituitary- master gland
divided into 2:
Neurohypophysis- extension of hypothalamus
Andrenohypophysis-endocrine gland on its own
Thyroid gland-anterior portion of the neck
Parahyroid gland- its hormone regulates blood calcium in the blood dtream
Thymus gland- located in the upper thorax
Pineal gland- found in the brain
Pancreas- maintains blood sugar level
Adrenal Glands-pair of small glands sit on top of the kidney
has 2 types:
Adrenal medulla- middle of the gland
Andrenal cortex- secretes andrenocorticosteroids
Gonads- secretes male and female hormones
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