5.1.2 Control Systems

• What is homeostasis?

  Stable internal environment
• Negative feedback counteracts the original stimulus
• Arrange the components of a control system in the correct order:

  1️⃣ Receptor

  2️⃣ Control Center

  3️⃣ Effector
• Positive feedback amplifies the original stimulus
• What two feedback mechanisms maintain internal stability in homeostasis?

  Positive and negative
• What type of changes do receptors detect in the internal environment?

  Temperature, glucose, pressure
• What does the control center do with the information it receives from receptors?

  Determines appropriate response
• Homeostasis is the maintenance of a stable internal environment
• The first component of a control system is the receptor
• The effector responds to the control center's instructions to restore homeostasis
• The control center ensures the body's internal conditions are maintained within the optimal range.


  True
• Receptors send signals to the control center when they detect changes in the internal environment.


  True
• Effectors respond to instructions from the control center to counteract the original change
• The two main feedback mechanisms in homeostasis are negative and positive
• Positive feedback amplifies the original stimulus
• Positive feedback amplifies the original stimulus.


  True
• What is the role of a receptor in a control system?

  Detect environmental changes
• Match the feedback type with its effect:

  Positive feedback ↔️ Amplifies stimulus

  Negative feedback ↔️ Counteracts stimulus
• Receptors detect changes in the internal environment
• The control center coordinates the appropriate response to restore homeostasis.


  True
• Homeostasis maintains a stable internal environment despite external changes
• Positive feedback amplifies the original stimulus, while negative feedback counteracts it.


  True
• The control center processes information from the receptor and coordinates the appropriate response.


  True
• The receptor detects changes in the internal environment
• The effector carries out the necessary adjustments to restore homeostasis
• The control center receives signals from receptors
• Sweat glands are an example of effectors that cool the body when temperature rises.


  True
• Negative feedback counteracts the original stimulus to restore homeostasis.


  True
• Oxytocin release during childbirth is an example of positive feedback.

  True