| A | B |
| Helps regulate body temperature, protects the body, eliminates some wastes, helps make vitamin D, detects sensations such as touch, pressure, pain, warmth and cold | Integumentary |
| Supports & protects the body, provides a specific area for muscle attachment, assists with body movements, stores cells that produce blood cells, and stores minerals and lipids | Skeletal |
| Particpates in bringing about body movements, maintains posture and produces heat | Muscular |
| Regulates body activities through nerve impulses by detecting changes in the environment, interpreting the changes, and responding to the changes by bringing about muscular contractions or glandular secretions | Nervous |
| Regulates body activities through hormones transported by the blood to various target organs | Endocrine |
| Pumps blood, carries oxygenaand nutrients to cells and carbon dioxide and wastes away from cells and helps regulate acidity, temperature and water content of body fluids, helps defend against disease | Cardiovascular |
| Returns proteins and fluid to blood, carries lipids from gastrointestinal tract to blood, contains sites of maturation and proliferation of B cells and T cells tha tprotect against disease causing microbes | Lymphatic |
| Transfers oxygen from inhaled air to blood and carbon dioxide from blood to exhaled air; helps regulate acidity of body fluids; produces sounds | Respiratory |
| Achieves physical and chemica breakdown of food; absorbs nutrients; eliminates solid wastes | Digestive |
| Produces, stores and eliminates urine; eliminates wastes and regulates volume and chemical composition of blood; helps regulate acidity of body fluids; maintains bldy's mineral balance; helps regulate red blood cell production | Urinary |
| Produce gametes (sperm or eggs) that unite to form a new organism and release hormones that regulate reproduction and other body processes; associated organs transport and store gametes. Mammary glands produce milk | Reproductive |