control systems!

• When do control systems work?

  automatically when conditions change.
• What do control systems in the body have the same?

  same pattern
• What does a control system include?

  receptor -> coordination centre -> effector
• What are receptors?

  group of specialised cells
• What is the function of receptors?

  to detect changes in the environment
• What is a stimuli?

  changes in the environment
• Where are receptors often located?

  sense organs
• What are examples of sense organs?

  skin, eye & ear.
• What do coordination centres do?

  receive & process information from the receptors
• What are some examples of coordination centres?

  brain, spinal cord, & pancreas.
• What are effectors?

  responses which restore optimum levels.
• What are examples of effectors?

  muscles that bring about a response or a gland secreting a hormone to restore optimum levels or to bring about a response.