kidneys
organ system
pulmonary - lungs -- circulatory helps transport as well.
Organ systems are most complex and fragile starting with the atoms. The most complex organ systems is the organism. In between are the molecules, cell, tissue, organ, and organ system.
Which organ system IN human is most directly involved in the transport of oxygen?(1)digestion (2)nervous(3)excretory(4)circulatory
The two organ systems most involved in homeostasis are the nervous system and the endocrine system. The nervous system helps to quickly regulate changes in the body, while the endocrine system releases hormones that help to maintain the body's internal balance. Together, they work to keep the body's systems functioning properly.
The respiratory system is most directly involved in the transport of oxygen in humans. Oxygen enters the body through the lungs during inhalation and is then transported by the circulatory system via red blood cells to tissues and organs where it is needed for cellular respiration.
pulmonary - lungs -- circulatory helps transport as well.
The brain
AIDS most directly affects the immune system.
The brain is the most important organ of the nervous system. The spinal cord and the brain are the main parts of the nervous system but the spinal cord is not considered to be an organ.
The two organ systems most involved in producing physiological changes leading to appropriate behavior patterns are the nervous system and the endocrine system. The nervous system coordinates rapid responses to stimuli, while the endocrine system regulates longer-term changes through the release of hormones. Together, they work to control and coordinate behavior in response to internal and external signals.
The lungs.