Science+Experiment+page+91

Angela Corrao Science page 91 questions 1-4 1. Your endocrine system is involved with the control of slower, long-term processes, such as fluid balance, growth and sexual development. Instead of electrical messages, the endocrine system sends messages via chemicals. 2. The feedback controls are important because once your body reaches a certain temperature a feedback control will send a message to an endocrine gland to stop sending in a particular hormone. 3. 4. In times of stress it would be important that your level of glucose in the blood increases because if you have to move quickly or avoid danger, your adrenal glands would make more blood glucose available, which would cause you to be able to make faster movements.
 * The **pituitary gland** secrets hormones that affect other glands and organs.
 * The **adrenal glands** help the body respond to stress and danger.
 * The **pancreas** regulates blood sugar levels.
 * The **ovaries** produce hormones involved in reproduction.
 * Your **thyroid gland** increases the rate at which you use energy.
 * The **parathyroid glands** regulate calcium levels in the blood.
 * The **thymus gland** regulates the immune system, which helps your body fight disease.
 * The **testes**, in males, produce hormones involved in reproduction.