What is the function of leptin?What tissue releases it? What is the function of ANP? What organ releases it What is the function of the thymus

During puberty, our reproductive systems undergo significant changes. What triggers the onset of puberty? Describe the involved hormones. In the past, estrogen and testosterone were blamed for puberty-related mood swings. What do we know now about hormones and brain growth that helps us understand the changes?

The pituitary gland starts sending out hormones into the blood stream to initiate puberty, as is seen in the image.   Which of the following statements best describes what the image is showing about how those hormones are received by the organs associated with puberty? The hormones circulate all over the body and act upon every cell. The hormones are dispersed to a specific area of the body and bind to target cells there. The hormones are dispersed and received only by cells in range of the signal before they degrade.  The hormones circulate all over the body and bind to specific receptors that only target cells possess.

The hypothalamus regulates many different of metabolic, developmental, and autonomic nervous system functions. For example, the hypothalamus produces ____ during puberty. FSH (follicle-stimulating hormone) and LH (luteinizing hormone)     estrogen and testosterone      GnRH (gonadotropin-releasing hormone)

If a castrated male rat was injected with testosterone over several weeks, why would his prostate increase in size but his testes decrease in size?  What would you expect to happen to his circulating levels of LH?  What would happen to his body weight?

How is the release of oxytocin from the posterior pituitary gland during labor is an example of positive feedback mechanism?

In the milk-letdown reflex, which cells are categorized as neuroendocrine cells? a) Sensory neurons in the breast tissue b)Neurons that synthesize oxytocin and form junctions with capillaries c)Neurons that contract and cause expulsion of milk

How does the hypothalamus influence the posterior and anterior lobes of the pituitary gland? Select all that apply. The anterior pituitary lobe secretes hormones that were made inside the hypothalamus. The anterior pituitary lobe produces hormones, but their release is controlled by hormones released from the hypothalamus. The posterior pituitary lobe produces hormones, but their release is controlled by hormones released from the hypothalamus. The posterior pituitary lobe secretes hormones that were made inside the hypothalamus.

If an intact rat was injected with cortisol over several weeks, what would happen to his blood levels of ACTH?  What would happen to his thymus gland?  What would happen to his body weight?

Which statement best describes the relationship between the Endocrine and Nervous Systems? Both systems work with the Urinary System to maintain acid-base balance in the blood Both systems regulate hair growth, temperature regulation,  and hydration Both systems modulate the stress response, sleep/wake cycles, and metabolism Both systems work with the Urinary System to activate Vitamin D