Problem: A 58 yr. An old female patient attended your clinic asking for the replacement of a maxillary first molar. The case seems straightforward, however, upon reviewing medical records you noted that the patient has a significantly low TSH (stimulating thyroid hormone) value, leading to the free T4 (thyroxine) value below the normal range. Which could account for the decrease in circulating TSH levels? Need Assignment Help? a) Decreased TRH (thyrotropin-releasing hormone) receptors on thyroid follicular cells 0b) Decreased basophils in the pars distalis of the anterior lobe of the pituitary