Endocrine/Urinary Vocab Flashcards
Hormone
chemical messengers released into the blood to be transported leisurely throughout the body
Steroids
Include sex hormones made by the gonads and hormones produced by the adrenal cortex
Tropic Hormone
a hormone that stimulates an endocrine gland to grow and secrete it’s hormones.
Growth Hormone
a hormone that stimulates growth in animal or plant cells, especially (in animals) a hormone secreted by the pituitary gland.
Pineal Body
a pea-sized conical mass of tissue behind the third ventricle of the brain, secreting a hormonelike substance in some mammals.
Hypothalamus
a region of the forebrain below the thalamus that coordinates both the autonomic nervous system and the activity of the pituitary, controlling body temperature, thirst, hunger, and other homeostatic systems, and involved in sleep and emotional activity.
Pituitary Gland
the major endocrine gland. A pea-sized body attached to the base of the brain, the pituitary is important in controlling growth and development and the functioning of the other endocrine glands.
Thyroid Gland
a large ductless gland in the neck that secretes hormones regulating growth and development through the rate of metabolism.
Parathyroid Gland
small endocrine glands in the neck of humans and other tetrapods that produce parathyroid hormone. Humans usually have four parathyroid glands, variably located on the back of the thyroid gland
Adrenal Gland
Either of two small endocrine glands, one located above each kidney. The outer portion, or cortex, secretes steroid hormones. The inner portion, or medulla, secretes epinephrine and norepinephrine.
Pancreas
a large gland behind the stomach that secretes digestive enzymes into the duodenum. Embedded in the pancreas are the islets of Langerhans, which secrete into the blood the hormones insulin and glucagon.
Gonads
an organ that produces gametes; a testis or ovary.
Kidneys
each of a pair of organs in the abdominal cavity of mammals, birds, and reptiles, excreting urine.
Nephrons
each of the functional units in the kidney, consisting of a glomerulus and its associated tubule, through which the glomerular filtrate passes before emerging as urine.
Uric Acid
an almost insoluble compound that is a breakdown product of nitrogenous metabolism. It is the main excretory product in birds, reptiles, and insects.