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EndocrineSystemSangayThongpatsang.pdf (General Functions (Hormone…
EndocrineSystemSangayThongpatsang.pdf
General Functions
Coordinate, control and regulate body functions
Hormone
Chemical messenger
Travels in blood
Target cells
Hormones only effect target cells
Endocrine gland and tissues
Secrete hormones
Messenger molecule
Hormone
Site of messenger action
nearby or far away -target cells
Pancreas
Islet cells
Beta
Secretes insulin-> decreases blood glucose.
Alpha
Secretes glucagon->increase blood glucose level
Adrenal medulla
Specialized Neurons that stimulate preganglionic neurons to excretes epinephrine and norephrine
prolactin
stimulation of mammary glands to produce milk
zona glomerulosa
Secretes mineralocorticoids, kidney retains sodium and water
Zona fasciculata
secretes glucocorticoids-Maintain blood glucose levels.
Also known as "stress hormone"
Testes
secrete testosterone
Zona reticularis
secretes glucocutoicoids and androgen.
converted into other tissues to testosterone and estrogen
thymic hormones
cause t-lymphocytes to become immunocompetent