Science review

• Glands secrete hormones.
• Pancreas secretes insulin and glucagon.
• Insulin lowers blood sugar levels.
• Glucagon raises blood sugar levels.
• Feedback mechanism maintains homeostasis.
• Receptors detect the stimulus.
• Cerebellum is responsible for balance and coordination.
• Cerebrum is responsible for memory and thinking.
• Medulla is responsible for involuntary actions.
• If sugar is too high, insulin is secreted.
• If sugar is too low, glucagon is secreted.
• Endocrine system = glands secrete hormones.
• Circulatory system transports hormones.
• Hormones are specific to the receptors that it attaches to.