Because endocrine glands do not use tubes or specialized piping to transport their secretions, they are described as being this type of gland.
What is ductless?
Found deep in the center of the brain, the pituitary gland is often called by this authoritative nickname because it tells other glands when to release hormones.
What is the Master Gland?
These triangular caps sit directly on top of each kidney to orchestrate the body's response to stress.
What are the adrenal glands?
Housed externally inside the scrotal sac, the testes drive male secondary sexual characteristics and produce this key hormone.
What is testosterone?
The thyroid gland is a butterfly-shaped organ located in the lower front of this body part
What is the neck?
These chemical messengers are secreted directly into interstitial fluid before entering the bloodstream.
What are hormones?
This butterfly-shaped organ located in the lower front of the neck acts as the body's cruise control for metabolism.
What is the thyroid gland?
Sitting horizontally behind the stomach, this gland serves as the body's chemical fuel manager.
What is the pancreas?
Situated deep within the pelvic cavity, the ovaries dictate female reproductive cycles using progesterone and this hormone.
What is estrogen?
The thymus gland is located centrally in the upper chest cavity, directly beneath this bone.
What is the sternum (or breastbone)?
This massive body-wide transportation system acts as the highway that carries hormones to every part of the body.
What is the circulatory system?
This pituitary hormone governs tissue and bone development.
What is Growth Hormone (GH)?
Located directly beneath the sternum, the thymus gland serves as a training academy to mature these disease-fighting white blood cells.
What are T-cells?
This is the specific chemical speed at which cells burn fuel for energy, and it is strictly regulated by the thyroid.
What is metabolism?
These triangular, pyramid-like caps sit directly on top of each kidney.
What are the adrenal glands?
Even though hormones travel everywhere in the blood, they will only affect and bind to these specific cells designed with matching receptors.
What are target cells?
To manage calcium balance, four tiny, pea-sized parathyroid nodules are embedded on this specific surface of the thyroid gland.
What is the posterior (or back) surface?
The pancreas secretes insulin to lower blood sugar and this hormone to raise it.
What is glucagon?
This hormone, abbreviated as PTH, acts as a strict monitor to balance calcium levels in the blood.
What is Parathyroid Hormone?
The pancreas is an elongated gland sitting horizontally in the abdomen behind this organ.
What is the stomach?
This is the immediate fluid that hormones are secreted into right before they diffuse through thin capillary walls.
What is interstitial fluid?
The thyroid gland secretes Triiodothyronine (T3) and this hormone, also known as T4.
What is thyroxine?
While adrenaline drives the instant "fight-or-flight" response, this hormone is the body's primary chronic stress controller.
What is cortisol?
This specific hormone is secreted by the thymus gland to aid in early immune system development.
What is thymosin?
The pituitary gland is located deep in the center of the head, specifically at the base of this organ.
What is the brain?