anatomy unit 1: body systems

there are 11 major bodily systems that work together to keep the body healthy and alive.

circulatory (cardiovascular) system:

responsible for the transportation of oxygen, nutrients and hormones throughout the body while eliminating cellular/metabolic waste.

Heart, blood vessels, and blood.

musculoskeletal system

Mechanical support, posture and movement.

muscular: Skeletal, smooth, and cardiac muscles

skeletal: Bones, cartilage, ligaments, and tendons

Respiratory system

exchange of oxygen and carbon-dioxide between the body and air, acid-base balance regulation, phonation.

Lungs, trachea (windpipe), and airways

Nervous system

Initiation and regulation of vital body functions, sensation and body movements.

Brain, spinal cord, and nerves

digestive system

Mechanical and chemical degradation of food with purpose of absorbing into the body and using as energy.

Stomach, small and large intestines, liver, and mouth

urinary system

Filtration of blood and eliminating unnecessary compounds and waste by producing and excreting urine.

Kidneys, bladder, ureters, and urethra

Endocrine system

Production of hormones in order to regulate a wide variety of bodily functions (menstrual cycle, sugar levels, etc)

Glands like the thyroid, pituitary, and adrenal glands

Lymphatic system

Draining of excess tissue fluid; immune defense of the body.

lymph nodes, spleen, and white blood cells

Reproductive system

Production of reproductive cells and contribution towards the reproduction process.

Ovaries and uterus (in females), testes and penis (in males)

Integumentary system

Protects the body from outside harm, stops water loss, and controls temperature.

Skin (the largest organ), hair, and nails.