A) How does the nervous system influence the respiratory system? (1 point)
It regulates urine output.
It controls muscle contraction.
It stimulates defense against pathogens.
It regulates blood pressure.
B) The nervous system influences the respiratory system by controlling muscle contraction (1 point).
so what the answer
A) The correct answer is: It controls muscle contraction.
The correct answer is: It controls muscle contraction.
The nervous system influences the respiratory system by controlling the muscles involved in respiration. These muscles include the diaphragm and the intercostal muscles. The nervous system sends signals to these muscles, causing them to contract and initiate the process of breathing.
The correct answer to the question "How does the nervous system influence the respiratory system?" is "It controls muscle contraction."
To understand why this is the correct answer, let's break it down:
1. "It regulates urine output" is not correct because urine output is primarily regulated by the urinary system and not directly influenced by the nervous system.
2. "It stimulates defense against pathogens" is also not correct because the immune system is responsible for defending against pathogens, and while the nervous system may indirectly influence immune function, it is not the primary mechanism for pathogen defense.
3. "It regulates blood pressure" is partially correct, as the nervous system does play a role in regulating blood pressure. However, the respiratory system is primarily responsible for the exchange of oxygen and carbon dioxide, not directly linked to blood pressure regulation.
4. The correct answer, "It controls muscle contraction," is the most appropriate option. The nervous system plays a crucial role in regulating the muscles involved in breathing. It sends signals to the muscles involved in breathing, such as the diaphragm and intercostal muscles, to contract and relax, facilitating the inhalation and exhalation process.
In summary, while the nervous system does have indirect influences on other physiological systems (such as blood pressure and immune function), in the context of the respiratory system, its main role is to control and coordinate the muscle contractions necessary for breathing.