Nate is gaining weight, is often tired, and feels cold. His thyroid hormone level is high as is the level of TSH. Nate also has a goiter. Which of these diagnoses is the most likely for Nate's condition? insufficient iodine in his diet defective thyroid hormone receptors in his body cells defective receptors for thyroid hormone control by the anterior pituitary too much iodine in the diet

Becky has lost 30 pounds over the past several months, even though herappetite has been good and she has been eating more than usual. Shecomplains to her physician that she is nervous and restless, has a shortattention span, becomes fatigued easily but cannot sleep well, movescompulsively, and sweats excessively. Her physician notes that she alsoexhibits tachycardia. Suspecting hyperthyroidism, he orders a blood test,which indicates elevated levels of T3 and T4 and low levels of TSH. Beckyalso has a TSH-like immunoglobulin in her plasma. Explain these results.

Which of the following scenarios is controlled by the endocrine system? Select all that apply. John went for a hike in the desert without any water but his body is not yet dehydrated. Joey is cold and begins to shiver. Gertrude just delivered a new born baby girl and is now breastfeeding the infant. Ben's voice is getting deeper and he is getting taller and more muscular. Brian grows two inches and now needs new pants. Tommy trips over a stone but manages to recover his balance and not fall.

What does the feedback loop for Vincent look like? be sure to indicate all the hormones and glands involved in the feedback loop. indicate whether the hormone levels are increasing or decreasing. use arrows to indicate the direction of influence and label whether it is a negative or positive feedback.