A. Use the key below to indicate the body systems that perform the following functions for the body:
a. cardiovascular d. integumentary g. nervous j. skeletal b. digestive e. lymphatic/immune h. reproductive k. urinary c. endocrine f. muscular i. respiratory
_______________________ 1. rids the body of nitrogen-containing wastes
_______________________ 2. is affected by removal of the thyroid gland
_______________________ 3. provides support and levers on which the muscular system acts
_______________________ 4. includes the heart
_______________________ 5. causes the onset of the menstrual cycle
_______________________ 6. protects underlying organs from drying out and from mechanical damage
_______________________ 7. protects the body; destroys bacteria and tumor cells
_______________________ 8. breaks down ingested food into its building blocks
_______________________ 9. removes carbon dioxide from the blood
_______________________ 10. delivers oxygen and nutrients to the tissues
_______________________ 11. moves the limbs; facilitates facial expression
_______________________ 12. conserves body water or eliminates excesses
_______________________ and _______________________ 13. facilitate conception and childbearing
_______________________ 14. controls the body by means of chemical molecules called hormones.
_______________________ 15. is damaged when you cut your finger or get a severe sunburn
B. Use the above key, choose the organ system to which each of the following sets of organs or body structures belong:
_______________________ 1. thymus, spleen, lymphatic vessels
_______________________ 2. bones, cartilages, tendons
_______________________ 3. pancreas, pituitary, adrenals
_______________________ 4. trachea, bronchi, alveoli
_______________________ 5. kidneys, bladder, ureters
_______________________ 6. testis, vas deferens, urethra
_______________________ 7. esophagus, large intestine, rectum