Both produce steroid type hormones. Testes - produce and secrete testosterone 2. The indicated figure describes the basic endocrine feedback loop model which involves a stimulus causing hypothalamic activation which then in turn causes secretion from the pituitary and this in turn leads to secretion of a hormone from the target organ. Review Questions 1. A. Exocrine Hormone B. Paracrine Hormone C. Autocrine Hormone D. Pheromone E. Cytokine 2.
Most hormonal secretions regulate themselves by way of a positive feedback system.
The pituitary is derived from epithelial cells, while the pituitary is derived from neurons of the hypothalamus. 4. Consider the adrenal gland. Taking an exam is a very stressful activity. If you consider this the stimulus that activates the hypothalamus, describe the pathways that are activated within the endocrine system. A steroid hormone interacts with a receptor.