Question

What function is controlled by the autonomic nervous system? 1) the movement of a person’s hand; 2) contraction of the intercostal muscles; 3) contraction of the muscles of the artery; 4) maintaining a sitting posture.

Answer 1

Ответ:sory dont speak English

Объяснение:

Answer 2

The autonomic nervous system (ANS) controls many involuntary functions in the body, such as heart rate, digestion, respiratory rate, and other processes that occur automatically without conscious effort. Among the options you provided:

1. The movement of a person's hand is primarily controlled by the somatic nervous system, which is under conscious control.

2. Contraction of the intercostal muscles, which are responsible for the movement of the ribcage during breathing, can be controlled voluntarily but also operates involuntarily to some extent during normal breathing.

3. Contraction of the muscles of the artery walls is controlled by the autonomic nervous system, specifically the sympathetic and parasympathetic divisions, to regulate blood pressure and blood flow.

4. Maintaining a sitting posture involves a combination of voluntary muscle control and reflexes, but the autonomic nervous system also plays a role in regulating blood pressure and other factors that can affect posture indirectly.

So, the correct answer to your question is option 3: Contraction of the muscles of the artery is primarily controlled by the autonomic nervous system.