Fill in the labels for the organs and functions of the Respiratory, Digestive, Urinary, and Reproductive Systems.

Here are the completed sections for your study guide on The Human Body Systems:

Respiratory System

• Organs: Nose, pharynx, larynx, trachea, bronchi, lungs, diaphragm
• Functions:
  • Facilitates gas exchange (oxygen intake, carbon dioxide release)
  • Enables vocalization
  • Regulates blood pH

Digestive System

• Organs: Mouth, pharynx, esophagus, stomach, small intestine, large intestine, liver, gallbladder, pancreas
• Functions:
  • Breaks down food into nutrients
  • Absorbs nutrients into the bloodstream
  • Eliminates undigested waste

Urinary System

• Organs: Kidneys, ureters, urinary bladder, urethra
• Functions:
  • Filters waste products from the blood
  • Maintains water and electrolyte balance
  • Regulates blood pressure and red blood cell production

Reproductive System

• Organs:
  • Males: Testes, epididymis, vas deferens, seminal vesicles, prostate gland, urethra, penis
  • Females: Ovaries, fallopian tubes, uterus, vagina, mammary glands
• Functions:
  • Produces gametes (sperm and eggs)
  • Produces sex hormones
  • Enables fertilization and fetal development (in females)