Answer:
Hi good evening, here are the body functions that help you run a marathon:
- Cardiovascular system: The heart pumps oxygenated blood to the muscles, providing the energy needed to sustain physical activity. The blood vessels, including the arteries and veins, transport blood throughout the body.
- Respiratory system: The lungs take in oxygen and exhale carbon dioxide, providing the oxygen needed for the muscles to produce energy. The bronchi and bronchioles in the lungs transport the air to and from the alveoli, where oxygen is exchanged with carbon dioxide.
- Muscular system: The muscles in the legs, arms, and core work together to propel the body forward and maintain balance and stability. The muscles also help to regulate the body's temperature and provide support for the bones and joints.
- Skeletal system: The bones in the legs, feet, and ankles provide structural support and allow for movement. The joints, such as the knees and ankles, allow for flexibility and allow the body to absorb the shock of impact.
- Nervous system: The brain and spinal cord coordinate the functions of the body and send signals to the muscles to contract and relax, allowing for voluntary movement. The nerves also transmit sensory information from the body to the brain, helping to regulate the body's functions and respond to changes in the environment.
- Endocrine system: The hormones produced by the glands, such as adrenaline and cortisol, help to regulate the body's energy levels and response to stress.