Use the drop-down menus to determine which structures of the endocrine system are described below. connects the endocrine system to the nervous system called the “master gland” of the endocrine system secretes a hormone that regulates sleep cycles regulates the development and differentiation of t lymphocytes

•Hypothalamus-connects the endocrine system to the nervous system.

It is a structure within the brain which secretes the hormones – releasing hormones which than stimulate or inhibit the secretion of hormones from the pituitary gland.

•Pituitary gland (hypophysis) - called the “master gland” of the endocrine system  

It is a three-lobe endocrine gland: The anterior pituitary (regulates growth, stress, reproduction), intermediate lobe (secretes melanocyte-stimulating hormone) and posterior pituitary (connection to the hypothalamus).

•Pineal gland - secretes a hormone that regulates sleep cycles.

Pineal gland is located in the epithalamus and it secretes melatonin hormone that regulates circadian and seasonal cycles.

•Thymus - regulates the development and differentiation of T lymphocytes

Thymus is a lymphoid organ of the immune system where the T lymphocytes mature.

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.