Human Body Organ Systems Crossword Puzzle

QUESTIONS LIST: nervous: senses external environment and communicates with and activates other parts of the body, immune: protects against foreign substances, digestive: allows ingestion and breaks down food so that nutrients can be absorbed, integumentary: protects the body's internal environment and stores fat, reproductive: produces gametes and supports development, endocrine: secretes hormones into the bloodstream for regulation of cellular activities, cardiovascular: enables the transport of nutrients, gasses and wastes to and from cells, urinary: filters and eliminates liquid wastes; regulates water balance, skeletal: provides mechanical support; stores minerals and produces red blood cells, muscular: enables movement, maintains posture and can store energy, respiratory: enables gas exchange with the blood.