Endocrine system Flashcards
What are the 5 main endocrine glands
Pituitary
Thyroid
Parathyroid
Adrenal
Pineal
What are the three glands that are both endo and exocrine
Pancreas
Gonads
Placenta
What is the main neuroendocrine gland
Hypothalamus
What’s it called when a cell targets itself
Autocrine
Cell that targets a nearby cell
Paracrine
Cell that targets a distant cell through the bloodstream
Endocrine
What are steroids synthesized from
Cholesterol
What is synthesized from cholesterol
Steroids
Can water soluble hormones enter the cell
NO
Can lipid soluble hormones enter the cell
Yes
What type of hormone acts on intracellular receptors
Lipid soluble
What type of hormone acts on plasma membrane receptors
Water soluble
amino acid based hormones are water or lipid soluble
Water
What is the exception to amino acid hormones being water soluble
Thyroid hormones
What are the lipid soluble hormones
Steroid and thyroid hormones
cAMP is produced from ATP through the action of what
Adenylate cyclase enzyme
cAMP is rapidly degraded by which enzyme
phosphodiesterase
What does Adenylate cyclase enzyme do
Turns on cAMP
what turns off cAMP
phosphodiesterase
How is gene transcription stimulated
cAMP response element binding protein
What are the three types of endocrine gland stimuli
Humoral
Neural
Hormonal
What kind of endocrine gland stimuli:
Hormones released due to altered levels of critical ions or nutrients
Humoral
What kind of endocrine gland stimuli:
Hormone release caused by neural input
Neural