Which of the following does not describe the ans?
a) a system of motor neurons that innervates smooth and cardiac muscle and glands
b) a system of motor neurons that innervates all muscle cells
c) involuntary nervous system
d) general visceral motor system

B- A system of motor nuerons that innervates al muscle cells

Explanation: Autonomic Nervous System regulates body functions for involuntary movements so that you do not have to think about breathing and pumping blood. These actions are involuntary and the autonomic nervous system is there to guide that.Therefore it only acts on smooth and cardiac muscles that are found at the heart, lungs and urinary organs, thus autonomic nervous system does not act on all muscles, making option B the answer.

cell division is not regulated in tumor cells.

hypoxemia refers to a below usual concentration of oxygen in the blood, mainly in the arteries. hypoxemia is an indication of an issue associated with circulation or breathing and may lead to various symptoms like shortness of breath.  

the condition is identified by determining the level of oxygen in the blood sample obtained from an artery. it can also be predicted by determining the oxygen saturation of the blood with the application of a pulse oximeter.  

the normal arterial oxygen is about 75 to 100 mm hg. the values underneath 60 mm hg is generally considered with the requirement for supplemental oxygen. the normal pulse oximeter readings generally range between 95 to 100 percent. the values under 90 percent are regarded as low.  

in the given case, the oxygen saturation is measured at 93 percent, hence, there is no need to administer oxygen, that is, one should withhold oxygen.