Human papillomavirus (HPV) is a DNA virus from the papillomavirus family that is capable of infecting humans. Like all papillomaviruses, HPVs establish productive infections only in keratinocytes of the skin or mucous membranes.ersistent infection with high-risk HPV typesâdifferent from the ones that cause skin wartsâmay progress to precancerous lesions and invasive cancer. High-risk HPV infection is a cause of nearly all cases of cervical cancer.
Summary. The thymus gland acts to regulate the immune system through the development of immune cells responsible for cell mediated immunity. In addition to immune function, the thymus also produces hormones that promote growth and maturation.Thymic hormones influence structures of the endocrine system, including the pituitary gland and adrenal glands, to assist in growth and sexual development.The thymus and its hormones also influence other organs and organ systems including the kidneys, spleen, reproductive system, and central nervous system.hymic hormones influence structures of the endocrine system, including the pituitary gland and adrenal glands, to assist in growth and sexual development. The thymus and its hormones also influence other organs and organ systems including the kidneys, spleen, reproductive system, and central nervous system.
The hypothalamus and the pituitary gland help control the thyroid gland. The hypothalamus produces thyrotropin-releasing hormone (TRH), which stimulates the pituitary gland to release thyroid-stimulating hormone (TSH).A low level of T3 tells the hypothalamus to release more TRH, and it tells the pituitary to release more TSH.he hypothalamus and the pituitary gland help control the thyroid gland. The hypothalamus produces thyrotropin-releasing hormone (TRH), which stimulates the pituitary gland to release thyroid-stimulating hormone (TSH).