The endocrine system consists of a group of organs called endocrine glands which produce and release a chemical substance called hormones.
The overall role of the endocrine system is to regulate the daily activities of the body and controls its overall development.
The endocrine system acts as a "system of checks and balances" that works to keep the body system healthy.
Positive Feedback Mechanism is a control system that uses information from sensors to increase the rate of processes.
Examples of Positive Feedback Mechanism include Cut Finger and During labor.
This type of feedback is rarely found in healthy people.
The exact opposite of a negative feedback mechanism.
Control self-perpetuating events that can be out of control and do not require continuous adjustment.
The hypothalamus is a small gland located at the base of the brain that regulates activities of the body, metabolism, and reproduction.
The pituitary gland is connected to the hypothalamus by blood vessels to regulate body temperature, blood pressure, and the use of water.
Oxytocin is released from the hypothalamus to control muscle contractions of the uterus and milk production.
Antidiuretic Hormone (ADH) increases water uptake in the kidney.
Thyroxine, which contains iodine, and calcitonin, which controls calcium levels in the bloodstream, are secreted by the thyroid gland.
The parathyroid glands are four tiny glands connected to the back of the thyroid gland that regulate the minerals in the body-calcium and phosphorus in the bloodstream.
Insulin controls the level of sugar in the blood.
Glucagon stimulates the liver to convert glycogen to glucose.
Hypoglycemia can occur if there is low sugar in the blood.
The thymus is located in the upper chest behind the breastbone.
A target is any organ, tissue, or cell that is responsible for the changes in the activity of the body in response to the message received.
The receptor monitors the environment and responds to change (stimuli).
The human body is made up of sensory neurons which carry impulses to the brain or spinal cord.
The effector is responsible for the response to changes.
There are different control systems in the body: sensors, control center, communicating system, and targets.
The control center of the body is the brain, which is part of the nervous system.
The brain receives information from the sensors.
Homeostasis is responsible for the regulation and maintenance of the internal environment of the body.
The nerve impulse and hormones stimulate the target cell or organs in the body in which there is a response happens, both internal and external environment.
A high level of carbon dioxide is harmful to the body.
The receptor detects changes within the body.
The immune system plays an important role in developing some of the body's defenses against infection.
The secretions of hormones from the endocrine glands are under the control of the hypothalamus which is also controlled by negative feedback.
The endocrine system and the nervous system are the communicating systems of the body.
If the set point is below, the control center quickly responds by sending messages through the communicating systems: the nervous system and the endocrine system.
The controls center of the body is the brain, which establishes a set point.
Sensors are receptors that are responsible for gathering information about the conditions inside and outside of the body.
They carry the information to all parts of the body.
The human body has many neurons spread out that receive input, process the input, and produce a response.
Increased breathing is a good example of how a negative feedback loop works.
The reproductive glands, ovaries and testes, play an important role in reproduction.
Negative feedback loops maintain a state of balance by reversing the change to return to the normal condition of the body.