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Endocrine System (Hormones of Pituitary Gland (Adrenocortictropic…
Endocrine System
Hormones of Pituitary Gland
Adrenocortictropic Hormone(ACTH)*
Stimulates adrenal gland to release cortisol
Anterior pituitary
Prolactin
Initiates & maintains milk secretion
Anterior pituitary
Human Growth Hormone (HGH)/(GH)
Stimulates growth during infancy and puberty
Anterior pituitary
Thyroid Stimulating Hormone(TSH)
Control basal metabolic rate by releasing thyroxine
Anterior pituitary
Luteninizing Hormone(LH)
Both(LH & FSH) involved w/ development of ovaries and testes^^
Anterior pituitary
Melanocyte Stimulating Hormone(MSH)
Stimulates production of melanin in skin
Intermediate Pituitary
Follicle Stimulating Hormone(FSH)
Stimulates egg maturation in ovary & release sex hormones
Anterior pituitary
Endocrine organs of brain
Pineal Gland
Melatonin;
Controls sleep cycle, alertness, and body temperature
Pituitary Gland
"Master Gland"
Signals other glands to produce their hormones when needed
Antidiuretic Hormone (ADH)
Regulates fluid balance by increasing body fluid volume and decreasing urine output.
From posterior pituitary
Oxytocin
Stimulates contraction of uterus during labor and milk ejection from alveoli
From posterior pituitary
Hypothalamus
Produces hormones that stimulates the pituitary gland
Anterior Lobe
Makes and releases hormones under control of hypothalamus
Endocrine Glands
Location: Thyroid
Thyroid Gland(Thyroxine)
Controls
metabolism
controlled by TSH
Calcitonin
Decreases
blood
Calcium
levels
Parathyroid Gland / Parathyroid Hormone(PTH)
Increases
blood
Calcium
levels
Location: Upper Chest
Thymus Gland / Thymosin Hormone
Stimulates development of
T-cells
involved in the
immune response
Location: Pancreas
Controls blood sugar levels
Insulin
Decreases
blood
sugar
levels
Glucagon
Increases
blood
sugar
levels
Location: Adrenal Gland (Above Liver)
Adrenal Cortex: Outer layer
Glucocorticoids or cortisol
Alerted when there is stress or injury
When alerted, release anti-inflamatory
Activated by ACTH
Adrenal Medulla: Inner layer
Epinephrine(Adrenaline)
"Fight or Flight"
Hormones
Chemical messengers that travel in blood & influence certain cells elsewhere in body.
Affect
only
specific target cells that have receptors which recognize that particular hormone.
Negative feedback
occurs when there is a drop in the level of hormones in blood
Triggers a chain reaction of responses to increase hormones in blood.
Consists of network of Endocrine glands located throughout body.
Function:
Glands secrete hormones into the blood then carried through body.