Handout #3 - Student Version

Handout #3 - Student Version - TA Ishita Desai Section Th...

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TA: Ishita Desai OH: Th 10-11, Café Roma Section: Th 9-9:50am, Center 217B [email protected] Handout #3 – Student Version POSTERIOR PITUITARY List two hypothalamic hormones that do not enter the hypothalamic-pituitary portal system. Include the stimuli for their secretion, their target organ(s), and their action(s). Hormone 1: Hormone 2: Jenny is suffering from the following symptoms: increased BP, swelling of the feet, fatigue and confusion. Blood tests show much lower than normal Na+ levels. What could Jenny be diagnosed with? Oxytocin Utilizes the Gq receptor (GPCR) to increase contraction via the increased release of Ca+ + (bu increase PKC). Sensitivity to oxytocin is increased during pregnancy by: o The activity of the receptor itself (during pregnancy) is inhibited by: Diagram the release of oxytocin during labor and the milk ejection/let down reflex. THYROID HORMONES
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TA: Ishita Desai OH: Th 10-11, Café Roma Section: Th 9-9:50am, Center 217B idesa[email protected] Hypothalamus TRH ant pit (thyrotrophs) TSH thyroid follicular cells T3, T4 - Negative Feedback: T3, T4 inhibits TSH and TRH - What is the purpose of the Na/K ATPase? - The steps involved in T3, T4 synthesis (many of these occur simultaneously): 1. 3Na+ pumped out and 2K+ pumped in via Na/K ATPase 2. I- co-transported into cell with Na+ (via gradient) via NIS
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Handout #3 - Student Version - TA Ishita Desai Section Th...

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