1. Alimentary tract: The digestive system, including the mouth, esophagus, stomach, intestines, and rectum.
2. Respiratory tract: The system of organs responsible for breathing, including the nose, pharynx, larynx, trachea, bronchi, and lungs.
3. Urinary tract: The organs involved in producing, storing, and eliminating urine, including the kidneys, ureters, bladder, and urethra.
4. Gastrointestinal tract: The part of the alimentary tract that deals with digestion, including the stomach and intestines.
5. Reproductive tract: The organs involved in reproduction, including the ovaries, fallopian tubes, uterus, and vagina in females, and the testes, epididymis, vas deferens, prostate, and penis in males.
The suffix "-tract" typically indicates a system of connected organs or tissues that perform a specific function.