Breaks down food into nutrients that can be absorbed and used by the body.

Includes the mouth, esophagus, stomach, small and large intestines, liver, pancreas, and gallbladder.

Interacts with the circulatory system to transport nutrients absorbed from the digestive process.

Transports oxygen, nutrients, hormones, and waste throughout the body

Consists of the heart, blood vessels (arteries, veins, and capillaries), and blood

Interacts with the respiratory system to exchange oxygen and carbon dioxide

Provides oxygen to the body and removes carbon dioxide

Includes the nose, nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, and alveoli in the lungs

Interacts with the circulatory system to facilitate gas exchange

Provides structure, support, and movement for the body

Includes bones, joints, ligaments, tendons, and muscles

Interacts with the nervous system to coordinate voluntary and involuntary movements

Responsible for sensing, interpreting, and responding to internal and external stimuli

Consists of the central nervous system (brain and spinal cord) and the peripheral nervous system

Interacts with the endocrine system to regulate physiological processes

Protects the body against infectious diseases, harmful pathogens, and other threats

Includes white blood cells, lymph nodes, the spleen, and other specialized organs and tissues

Interacts with the circulatory system to transport immune cells and substances throughout the body

Responsible for the production of gametes (sperm and eggs) and the process of reproduction

Consists of the gonads (testes and ovaries), ducts, and associated glands

Interacts with the endocrine system to regulate the production of reproductive hormones