excretory, nervous, endocrine system

• What is homeostasis?


  Maintaining a stable internal environment
• What is thermoregulation?


  regulation of body temperature
• How does negative feedback help maintain homeostasis?

  It reverses the change
• What organ "cleans" blood?

  Kidney
• What does the skin release in the excretory system?

  Salt, water, and electrolytes
• What is ADH in the excretory system?

  Antidiuretic hormone
• What does ADH do?

  Controls amount of water in urine
• What happens during filtration?

  Blood pressure forces small molecules out of the glomerulus
• What is the filtrate caught by?

  Bowman's capsule
• What is reabsorption?


  molecules returned to the blood
• What is secretion?


  The molecules removed from the blood
• What is Excretion?


  The created urine from the leftover molecules in the filtrate
• What does the liver do to maintain homeostasis?

  Detoxifies harmful substances
• Where does reabsorption, secretion, and excretion take place?

  In the Kidney
• Where does the Ureter carry urine?

  From kidney, to bladder
• Where does the urethra carry urine?

  From bladder, out the body
• What is urea?


  A substance formed by the breakdown of protein in the liver
• What does amino acids make when broken down?

  Ammonia
• What does ammonia and carbon dioxide make?

  Urea
• What does urea go into?

  The urine
• What are hormones?


  Chemical messengers that affect target cells
• How do hormones travel?

  Through blood stream
• Which is faster, the endocrine or nervous system?

  Nervous system1 multiple choice option
• How does the nervous system send messages?

  Through the use of electrical impulses
• How does the endocrine system send messages?

  Hormones travel through the blood
• 1 (T or F). Hormones affect every cell they come in contact with?

  False1 multiple choice option
• What cells do hormones affect?

  Target cells
• How does the pancreas maintain homeostasis?

  Maintaining blood glucose levels
• When high blood glucose levels, what does the liver do?

  Stores the glucose as glycogen
• When low blood glucose levels, what does the liver do?

  Breaks down glycogen into glucose and releases it into blood stream
• What hormone rises blood glucose levels?


  Glucagon3 multiple choice options
• What's in the CNS (central nervous system)?

  Brain and spinal cord
• What's in the PNS (peripheral nervous system)?

  Motor and sensory neurons
• How do somatic muscles move?

  Voluntary
• How do autonomic muscles move?

  Involuntary
• In the autonomic nervous system, which division prepares the body to use energy?


  Sympathetic
• In the autonomic nervous system, which division conserves energy?

  Parasympathetic
• What do pain receptors detect?

  Pain
• What do thermoreceptors detect?

  Temperature
• What do mechanoreceptors detect?

  Movement