Circulatory System
The genitourinary system.
The digestive system contains the liver.
The digestive system contains the small intestine. It is a vital organ for nutrient absorption in the body.
The olfactory system.
Digestive system.
the digestive system
skeletal system
Circulatory System.
The eye contains the Retina
The skin is part of the Integumentary System, and is the largest organ in the body.
The integumentary system (which also includes hair and nails).Integumentary System
The kidney is part of the urinary system, which consists of the kidneys, ureters, urinary bladder, and urethra.