Breaks down food into nutrients

mouth, esophagus, stomach, and intestines.

works with circulatory system to transport

transports oxygen and hormones in the body

Made up of heart, blood, and blood vessels.

works with the respiratory system to exchange oxygen.

exchanges oxygen between the body and environment

Main organs: lungs, trachea, and bronchi.

works with the muscular system to allow breathing.

produces hormones

glands like the thyroid, pituitary, and adrenal

works with the nervous system to coordinate responses to stress

supports and moves the body.

made up of bones, muscles, tendons, and ligaments.

works with the circulatory system to deliver oxygen to muscles during movement.

body activities via electrical signals.

Includes brain, spinal cord, and nerves.

works with the muscular system to control voluntary movement.

defends the body against disease.

white blood cells, lymph nodes, and spleen.

works with the circulatory system to transport immune cells throughout the body.

produces gametes and supports the development of offspring.

Male and Females have these.

works with endocrine system to regulate reproduction and hormone cycles.