Hormone Actions
H. secreted by the Pineal gland in a daily rhythm that influences sleep, body temperature, and appetite
Melatonin
G. that produces the hormones for the posterior pituitary
Hypothalamus
Triggers release of glucagon
Condition that leads to overproduction of the Thyroid Hormone (T3/T4)
Hyperthyroidism
Opposes action of insulin
glucagon
H. secreted by the pancreas when blood sugar is high
Insulin
Specific G. that is known for producing corticoids during times of long term stress
Adrenal Cortex
Triggers release of growth hormone
Injury, growth, GHRH
Associated with either too much or too little insulin
Diabetes (mellitus)
Involved in a positive feedback loop
Oxytocin
Hormones secreted by the Adrenal Medulla
Epinephrine & Norepinephrine
G. that produces the hormone known for breaking down glycogen into glucose
Pancreas (alpha cells)
Triggers release of the “love hormone”
Physical sensations, pressure on the cervix
May be caused by excess cortisol (a GlucoCorticoid)
hyperglycemia, decreased immunity
Released by the Posterior Pituitary when blood pressure is low
ADH/vasopressin
H. secreted in response to secretion of ACTH (AdrenoCorticoTropin Hormone)
Cortisol
G. that produces Calcitonin when blood calcium is high
Thyroid
Triggers release of the hormone responsible for ovary follicle growth or sperm production
GnRH (gonadotropin-releasing hormone)
Symptoms of an under-active thyroid
Fatigue, weight gain, muscle weakness, cold extremities
Secreted by the Heart in response to high blood pressure
Atrial Natriuretic Peptide (ANP)
H.s secreted by adipose tissue
leptin, adiponectin, resistin
G. that produces the hormone antagonist to Calcitonin
Parathyroid
Triggers release of Erythropoietin
Low O2
May be caused by excess ParaThyroid hormone (PTH)
brittle bones, high blood calcium
When blood sugar is low, these 4 work together to raise it
glucagon, epinephrine, norepinephrine, cortisol