Answer:
Explanation:
Superior/Inferior Vena cava-----------Right Atrium ---------Tricuspid valve ------right ventricle -------pulmonary semi-lunar valve------pulmonary trunk-----------pulmonary arteries --------lung capillaries -------- pulmonary veins --------left atrium -------mitral valve --------left ventricle ------- aortic semi-lunar valve -------aorta --------- tissues of body ------------superior and inferior vena cava.
Answer: It happens when the autonomic nervous system (ANS) doesn't work as it should. The autonomic nervous system is the body's "autopilot" system, controlling things like heart rate, blood pressure, and breathing. (I'm not sure tho)
Explanation:
Probably. If things get worse, you should check a doctor
Answer:
endocrine are are ductless glands while exocrine are having ducts
The nervous system in one's body sends signals to the muscles to contract in order to move or perform a task like walking. The respiratory system sends oxygen to the muscles in order to provide energy for those actions
