___ system

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Across
  1. 4. is the condition of maintaining balance within the body in relation to its external environment and is vital for life
  2. 6. regulate and maintain assorted functions of the body by releasing hormones into the bloodstream to maintain homeostasis
  3. 7. movement, joint stabilization, heat generation, maintenance of posture, and the facilitation of blood circulation
  4. 9. to protect us against diseases
Down
  1. 1. perceiving information from inside the body and/or from the external environment and determining how the body responds to any changes
  2. 2. is made up of all the nerves and ganglia found outside of the central ___ system
  3. 3. locomotion, support of the body, and the protection of internal organs such as the brain, heart, and lungs, are also responsible for the production of red blood cells, platelets, and most white blood cells
  4. 5. Some of the main organs involved in the ___ system include the
  5. 8. are involuntary muscles that are responsible for the contraction of hollow muscles which include the stomach, intestines, bladder and uterus