Question

cells and body systems
which is true about how the nervous system interacts with other body systems? (1 point)
the nervous system controls the digestive system by sending signals to the stomach, telling it to contract and digest food.
the nervous system interacts with the skeletal system by sending signals to the legs to move fast.
the nervous system interacts with the circulatory system by sending signals to the heart to make more blood.
the nervous system interacts with the muscular system by sending signals to the ligaments to bond to tendons.

Explanation:

• The nervous system controls the digestive system by sending signals to the stomach to contract and digest food. This is a correct interaction as the nervous system regulates various body functions including digestion.
• The nervous system interacts with the skeletal system by sending signals to the muscles (not directly to the legs bones) to move. So the statement about sending signals to legs to move fast is incorrect as it's the muscles attached to the skeleton that receive signals.
• The heart does not make blood (blood cells are made in bone marrow). The circulatory system's heart pumps blood and the nervous system can regulate heart rate but not "make more blood" as stated.
• Ligaments connect bones to bones and tendons connect muscles to bones. The nervous system sends signals to muscles (not ligaments) to contract.

Answer:

The nervous system controls the digestive system by sending signals to the stomach, telling it to contract and digest food.