Unit 10 Hormones Flashcards
HORMONES
Glands
Secrete chemical signals into your blood which are called hormones
3 STRUCTURES OF HORMONES
1 - Amino Acid Derivatives (Protein)
2 - Peptide Hormones (Protein)
3 - Liquid Derivatives (Steroids)
ORGANS OF THE ENDOCRINE SYSTEM
3
Hypothalamus - Production of ADH, Oxytocin, and Regulatory Hormones (Base of Brain)
Pituitary Glands - Anterior lobe : Ac TH, TSH, GH, PRL.
Posterior lobe : Release ADH and Oxytocin (Below brain)
Pineal Gland - Produces Melatonin near the Hypothalamus (Gland in Brain)
ORGANS OF THE ENDOCRINE SYSTEM
LAST 3) (BODY
Thyroid Gland - Produces Thyroxine, Calcitonan (Front of neck)
Adrenal Gland - Top of each Kidney (Maintain blood pressure) / Middle - Adrenal Medulla : Epinephrine (Release) / Outside - Adrenal Cortex : Corticosteroio (Release)
Pancreas - Back of abdomen
Produce insulin and Glucagon (Blood sugar)
HYPOTHALAMUS
Brain structure that releases the majority of Hormones from Pituitary
2 ACTIONS
Second Messengers - Bind the surface of a cell and a second messenger will go and do the work
Direct DNA Binding - Hormone goes straight through cell membrane to the Nucleus causing change in DNA
PROLACTION
&
OXYTOCIN
During Lactation, (P) Promotes milk synthesis and (O) stimulates milk ejection
CALCITONIN
&
PARATHYROID
(C) - Decreases Blood Calcium - Takes calcium from blood and puts it on bone
(P) Opposite (Increases)
ANTERIOR PITUITARY LOBES
MSH - Produce Melanin FSH - Egg and Sperm maturation LH - Ovulation ACTH - Release stress hormones TSH - Release Thyroid hormone PRL - Synthesis of milk (Putting together) GH - Growth (Puberty)
POSTERIOR PITUITARY LOBE
Oxytocin - Milk ejection, Contractions, Orgasm
(Breast Feeding)
ADH - Stop peeing