Answer
1. Integumentary system - Primary function is protection. Major organ is the skin.
2. Skeletal system - Primary function is support. Major organs are the bones.
3. Muscular system - Primary function is movement. Major organs are the skeletal muscles.
4. Nervous system - Functions are rapid internal communication, coordination, motor control, and sensation. Major organs are the brain and spinal cord.
5. Endocrine system - Primary function is hormone production. Principal organs include the pituitary glands, thyroid gland, parathyroid glands, thymus, adrenal glands, pancreas, and the testes/ovaries.
6. Circulatory system - Primary function is the distribution of nutrients, oxygen, wastes, hormones, electrolytes, heat, immune cells, and antibodies throughout the body. The major organs are the heart and the blood vessels.
7. Lymphatic system - Primary function is defense against disease and fluid recovery. The major organs include lymph nodes, lymphatic vessels, the thymus, spleen, and tonsils.
8. Respiratory system - Principal function is gas exchange and acid-base balance. The major organ is the lungs.
9. Urinary system - Principal function is elimination of wastes, regulation of blood volume and pressure, and control of fluid, electrolyte and acid-base balance. The major organs are the kidneys and bladder.
10. Digestive system - Principal function is nutrient breakdown and absorption and elimination. The major organs are the stomach, small and large intestines, and liver.
11. Reproductive system - Principal function is reproduction and secretion of sexy hormones. For the males, this means the production and delivery of sperm. For the females, this means the production of eggs, fetal development and nourishment, birth and lactation. The primary organs are the sex organs of both males and females and include the testes, prostate gland, penis, ovaries, vagina, and uterus.
Work Step by Step
The integumentary system's primary function is protection. It also helps with water retention, thermoregulation, vitamin D synthesis, cutaneous sensation, and nonverbal communication. The major organ is the skin with accessory organs being the hair, nails, and cutaneous glands.
The skeletal system's primary function is support. It also provides protection to viscera, allows for blood formation, mineral storage, movement and aids in electrolyte and acid-base balance. The major organs are the bones with secondary organs being the cartilages and ligaments.
The muscular system's primary function is movement. It also has the functions of stability, communication, control of body openings, and heat production. The major organs are the skeletal muscles.
The nervous system's primary function is rapid internal communication. It also provides the functions of coordination, motor control, and sensation. The major organs are the brain and spinal cord. Other organs are nerves and ganglia.
The endocrine system's main function is hormone production. The endocrine system also does internal chemical communication and coordination. Principal organs include the pituitary glands, thyroid gland, parathyroid glands, thymus, adrenal glands, pancreas, and the testes/ovaries.
The circulatory system's primary function is the distribution of nutrients, oxygen, wastes, hormones, electrolytes, heat, immune cells, and antibodies throughout the body. It also helps with fluid, electrolyte, and acid-base balance. The major organs are the heart and the blood vessels.
The lymphatic system's primary functions are defense against disease and recovery of excess tissue fluid. It also detects pathogens and produces immune cells. The major organs include lymph nodes, lymphatic vessels, the thymus, spleen, and tonsils.
The respiratory system's primary function is gas exchange. The respiratory system absorbs oxygen and discharges carbon dioxide. The respiratory system also helps control acid-base balance and speech. The primary organ is the lungs and other organs include the nose, pharynx, larynx, trachea, and bronchi.
The urinary system's primary function is the elimination of wastes. It also strongly regulates blood volume and pressure and controls fluid, electrolyte, and acid-base balance. The urinary system also stimulates red blood cell formation and helps detoxify the body. The primary organs are the kidneys and bladder. Other organs include the ureters and urethra.
The digestive system's primary function is the breakdown and absorption of nutrients. The liver also functions to synthesize plasma proteins, and dispose of drugs, toxins, and hormones. The principal organs are the stomach, small and large intestine, and the liver. Accessory organs include the teeth, tongue, salivary glands, gallbladder, and pancreas.
The reproductive systems primary function is to reproduce and secretion of sex hormones. For the males this means the production and delivery of sperm and for the females this means the production of eggs, fetal development, and birth. The primary organs for the males include the testes, prostate gland, and penis. For the females, the primary organs include the ovaries, uterine tubes, uterus, vagina, and mammary glands.
