Endocrine system
Published on Nov 18, 2015
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PRESENTATION OUTLINE
Endocrine Sys
OUR GLANDS, HORMONES
Tissues, Glands
Secrete hormones in bloodstream
unlike neurotransmitters in nervous system (fast)
slow*long lasting effects
Hypothalamus
Master of "master gland"
Pituitary (green)
Under control of hypothalamus (red)
Pituitary Gland
Secretes its own hormones that control other glands
Just below hypothalamus
The lower portion of hypothalamus has blood flow
Anterior Pituitary
SECRETES GROWTH HORMONE
Oxytocin
Hand-holding/touch produce this hormone in pituitary
Pineal Gland (blue)
Behind eyes and hypothalamus (red)
Pineal 2nd MOST blood flow
Kidney has #1 bloodflow
MELATONIN secretion
PI-NEE-AL Makes you SLEEEEEPY-ALL night
Light shuts down melatonin production
PINEAL GLAND & Circadian Rhythm
Untitled Slide
Pancreas
Moderates blood sugar
INSULIN lowers blood glucose (sugar)
Without insulin, blood sugar too high
Adrenal Glands
atop kidneys
2 parts
ADRENAL CORTEX (outer); ADRENAL MEDULLA (inner)
Glucocorticoids/Cortisol> STRESS HORMONE Raises Blood Glucose
ADRENAL CORTEX
CORTISOL
ADRENALINE or epinephrine HEART RATE!!!
ADRENAL MEDULLA
Untitled Slide
HPA axis
Hypothalamic*Pituitary*Adrenal cascade
Adrenal glands
Also produce some steroids, androgens related to secondary sex characteristics
Anaphylaxis
Parasympathetic nervous sys dilates blood vessels, decreases heart
Immune sys Nervous sys Endocrine connected
Epinephrine (Latin for adrenaline) triggers "INCREASED HEART RATE"
Photo by ppelleti
Thyroid
Produces hormone to regulate metabolism
Hypo=slow hyper is overactive
OVARIES: Estrogen
female secondary sex characteristics
TESTES: Androgen
testosterone; secondary male sex characteristics
Endocrine Sys
OUR GLANDS, HORMONES
