List of systems of the human body

This is a list of the main systems of the human body, including organ systems. An organ system is a group of organs that work together to perform major functions or meet physiological needs of the body.

Major organ systems

There are 11 to 12 distinct organ systems. The endocrine and exocrine systems are sometimes referred to jointly as the endocrine system.

Organ sub-systems

Cardiovascular

• Cardiac conduction system

Lymphatic

• Glymphatic system

Nervous

• Central nervous system
• Peripheral nervous system
• Autonomic nervous system
• Sympathetic nervous system
• Parasympathetic nervous system
• Enteric nervous system
• Somatic nervous system
• Sensory nervous system
• Somatosensory system
• Visual system
• Olfactory system
• Gustatory system
• Auditory system
• Vestibular system

Reproductive

• Female reproductive system
• Male reproductive system

Other systems

• Genitourinary system
• Haematopoietic system
• Immune system
• Innate immune system
• Adaptive immune system
• Mononuclear phagocyte system
• Reticuloendothelial system
• Musculoskeletal system
• Neuroendocrine system

See also

• List of distinct cell types in the adult human body
• List of organs of the human body

References