Final answer:
The liver's main digestive role is to produce bile, which emulsifies fats and neutralizes acid content from the stomach. It also detoxifies blood by filtering out toxins and breaks down various substances, including medications. The correct option in the context of liver functions is B) secretion of bile and filtration of toxic substances.
Step-by-step explanation:
The liver is a vital organ with multiple functions related to digestion and detoxification. One of its main digestive functions is the production and secretion of bile, which is vital for breaking down and absorbing fats. The bile produced by hepatocytes is either directly secreted into the duodenum or stored in the gallbladder. Besides emulsifying fats, bile also has an alkaline nature that helps neutralize the acidic chyme received from the stomach, creating an optimal environment for digestive enzymes in the small intestine.
Moreover, the liver also plays a crucial role in filtering toxins and wastes, transforming them into less toxic forms that can be excreted via bile or urine. This detoxifying function extends to the metabolism of various substances, including medications, making the liver important for pharmaceutical processing. Therefore, regarding the functions listed for the liver, option B) secretion of bile and filtration of toxic substances is the correct option in the final answer.
In addition, the liver also stores vitamins and minerals, produces plasma proteins such as albumin, and contributes to metabolic processes, including glucose regulation and amino acid synthesis. It plays a pivotal role in the digestion of fats and processing vitamins and fatty acids, bolstering its central role in maintaining overall bodily function.