Thermoreceptors in the hypothalamus sense the temperature of the blood. when blood temperature begins to decrease, the hypothalamus releases trh that stimulates the release of tsh from the anterior pituitary gland. tsh stimulates the thyroid gland to release thyroid hormone (th). th stimulates an increase in body temperature, which causes the hypothalamus to decrease release of trh. which type of reflex pathway is this thermoregulatory pathway? ? thermoreceptors in the hypothalamus sense the temperature of the blood. when blood temperature begins to decrease, the hypothalamus releases trh that stimulates the release of tsh from the anterior pituitary gland. tsh stimulates the thyroid gland to release thyroid hormone (th). th stimulates an increase in body temperature, which causes the hypothalamus to decrease release of trh. which type of reflex pathway is this thermoregulatory pathway? ? simple endocrine reflex complex neuroendocrine reflex simple neural reflex simple neuroendocrine reflex