CHapter 45.4 Flashcards
Parathyroid hormone (PTH)
is released by the parathyroid glands
Calcitonin (Calcium)
released by the thyroid gland
Adrenal Glands
- The adrenal glands are adjacent to the kidneys
- Each adrenal gland actually consists of two glands: the adrenal medulla (inner portion) and adrenal cortex (outer portion)
Epinephrine and Norepinephrine
Adreneline and Noradreneline
members of a class of compounds called catecholamines
Catecholamines
- The adrenal medulla secretes epinephrine (adrenaline) and norepinephrine (noradrenaline)
- These hormones are members of a class of compounds called catecholamines
- They are secreted in response to stress-activated impulses from the nervous system
- They mediate various fight-or-flight responses
Corticosteroids
The adrenal cortex releases a family of steroids called corticosteroids in response to stress
Glucocorticoids
influence glucose metabolism and the immune system
Mineralocorticoids
affect salt and water balance
Testes Hormones
- The testes primarily synthesize androgens, mainly testosterone, which stimulate development and maintenance of the male reproductive system
Ovaries Hormones
estradiol: responsible for maintenance of the female reproductive system and the development of female secondary sex characteristics
progesterone: primarily involved in preparing and maintaining the uterus
- Synthesis of the sex hormones is controlled by FSH and LH from the anterior pituitary
Pineal gland
-located in the brain, secretes melatonin