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NBME 20 Answers

nbme20/Block 1/Question#25

A 25-year-old primigravid woman at 42 weeks’ ...

Phosphoinositide hydrolysis

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submitted by hayayah(422),

Oxytocin uses IP3 signaling pathway.

GnRH, Oxytocin, ADH (V1-receptor), TRH, Histamine (H1-receptor), Angiotensin II, Gastrin.

FA mnemonic: "GOAT HAG"

dickass  I figured "if Oxytocin can cause milk secretion and enough uterine contractions to expel a full baby, it's probably activating smooth muscle contraction through Gq coupled second messengers" +1