A 34-year-old woman arrives at the clinic after experiencing dizziness and mild confusion for the past week. The patient has had seizures since childhood and was recently prescribed carbamazepine by her neurologist. Her temperature is 36.7 degrees Celsius (98 degrees Fahrenheit), her blood pressure is 121/72 mm Hg, her pulse is 68 bpm, and her respirations are 13 / min. The physical examination is within normal parameters. According to laboratory findings, the serum sodium concentration is low. The patient's condition is determined to be caused by an increase in the release of a hormone that is co-secreted with neurophysins. Which of the following sites is most likely where this hormone is secreted into the circulation? ?

Question

Quizplus · Accepted Answer

Eductional Objective: Vasopressin and oxytocin are synthesized within neurons found in the paraventricular and supraoptic nuclei and are released into the circulation from axon terminals in the posterior pituitary.  Neurophysins are involved in the posttranslational processing and stabilization of oxytocin and vasopressin within neurosecretory vesicles during transport to the posterior pituitary.

A 34-Year-Old Woman Arrives at the Clinic After Experiencing Dizziness