The Endocrine System Flashcards
Pituitary
Hormone: Human Growth Hormone
Function: Elongates bones in skeleton.
Thyroid
Hormone: Thyroxine
Function: Controls metabolism
Parathyroid
Hormone: Parathormone
Function: Controls the release of calcium from bones.
Pancreas( Islets of Langerhans)
Hormone: Insulin
Function: Reduces blood sugar levels.
Adrenal
Hormone: Adrenaline
Function: Emergency response.
Ovaries
Hormone: Oestrogen/Progesterone
Function: Controls menstrual cycle/ Secondary sexual female characteristics.
Testis
Hormone: Testosterone
Function: Primary male characteristics
Growth hormone deficiency
Deficiency Symptoms: Immature face
Excess Symptoms: Enlargement of body tissue
Correction: Injections of the hormone
Feedback mechanism of thyroid hormones
The concentration of TSH/ stimulates the concentration of thyroid hormone.
TRH causes the release of TSH, which stimulates the secretion of thyroid hormones/ when the amount is reached, secretion of TRH is stopped/ negative mechanism.
What happens to hormone when it is released by a gland
Enters bloodstream/travels to target tissue/exerts a specific effect.
Hormone supplement
Insulin for diabetes
Endocrine
Secrets directly into blood.
Thymus
Hormone: Thymosin
Function: Matures white blood cells
Pineal
Hormone: Melatonin.
Function: Controls body rhythms.
