groups of cells
The endocrine system affects cells with certain receptors .
The nervous system can affect only nearby cells
Nerves monitor the body, and hormones make adjustments
Neurons check for imbalances and tell the endocrine system to send out hormones.
T cells apex
The endocrine system sends messages using hormones. It delivers messages from the nervous system to the excretory system. It tells the excretory system when the blood is out of balance.
One gland causes calcium ions to be released; another gland causes them to be absorbed
Thyroid, parathyroid and pituitory are few exaples of endocrine gland and pancreas is example of enocrine as wel exocrine gland. Stoach is also another example of both types of glands.