ANFS 345 Test 2
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20 Terms
Steroid hormones are derived from…
cholesterol
Amine hormones are derived from…
amino acids
Peptide/protein hormones consist of…
Amino acids
Examples of steroids
aldosterone, cortisol, testosterone, and estradiol
Examples of catecholamines (tyrosine amine hormones)
dopamine, norepinephrine, epinephrine
Examples of iodothyronines
thyroxine (T4), triiodothyronine (T3)
Examples of amine hormones made from tryptophan
melatonin
Examples of peptide hormones
GnRH, insulin
The posterior pituitary secretes…
oxytocin and vasopressin
What makes oxytocin and vasopressin?
Hypothalamus; not posterior pituitary
Hormones that the anterior pituitary makes
thyrotropin (TSH), adrenocorticotropin (ACTH), growth hormone, gonadotropins (LH & FSH), prolactin, MSH in some animals
What does the zona reticularis secrete?
adrenal androgens (ie: androstenedione)
What does the zona fasciculata secrete?
glucocorticoids (ie: corticosterone)
What does the zona glomerulosa secrete?
mineralocorticoids (ie: aldosterone)
What does the adrenal medulla secrete?
catecholamines
Layers of the adrenal gland (medial to lateral)
adrenal medulla, zona reticularis, zona fasciculata, zona glomerulosa
Synergism
amplify each other’s effectiveness
Antagonism
opposing the action of another hormone
What are insulin’s antagonists?
glucagon and epinephrine
What is glucagon’s synergist?
epinephrine