Which vertebrate organ receives only oxygenated blood?

Explanation

All options are explained below. Option A is correct. a)Spleen: The spleen is a vital organ in the vertebrate circulatory system which only recieves oxygenated blood with several functions , including: Blood Filtration: One of the key functions of the spleen is to filter blood. It helps remove damaged, old, or abnormal blood cells, including red blood cells and platelets. By doing this, it contributes to maintaining the quality of circulating blood. Reservoir for Blood: The spleen serves as a reservoir for blood. It can store a significant volume of blood, which can be released into circulation when needed. This can be particularly important in situations like hemorrhage or increased demand for blood supply. Immune Functions: The spleen plays a role in the immune system. It contains white blood cells, including lymphocytes, which are involved in immune responses. In response to infections or the presence of foreign materials in the blood, the spleen can produce immune responses to defend against pathogens. Platelet Storage: The spleen stores a portion of the body's platelets (thrombocytes). Platelets are essential for blood clotting, and the spleen's ability to release stored platelets can be important in managing bleeding. It's important to note that while the spleen is involved in the circulatory system and has several crucial functions related to blood, it does primarily receive only oxygenated blood. But, its functions are more centered around blood filtration, storage, and immune responses. Oxygenated blood flows into various organs and tissues, including the spleen. b)Liver: The liver is a crucial organ with various functions, but it does not receive only oxygenated blood. The liver receives blood from two sources: the hepatic artery and the hepatic portal vein. The hepatic artery carries oxygenated blood from the heart to supply the liver with oxygen. In contrast, the hepatic portal vein carries nutrient-rich, deoxygenated blood from the digestive organs. The liver plays essential roles in metabolism, detoxification, and producing various substances, such as bile. c)Gill: Gills are the respiratory organs of aquatic animals, such as fish. They play a vital role in extracting oxygen from water and releasing carbon dioxide. While gills receive oxygenated water, they also receive deoxygenated blood for gas exchange. Oxygen from the water diffuses into the bloodstream, while carbon dioxide from the blood diffuses into the water. This process ensures that the fish obtain oxygen and eliminate carbon dioxide. d)Lung : The pulmonary arteries carry deoxygenated blood from the right ventricle of the heart to the lungs for oxygenation. In the lungs, oxygen is taken up from the air and binds to hemoglobin in red blood cells, while carbon dioxide is released from the blood into the alveoli to be exhaled. The oxygenated blood then returns to the heart via the pulmonary veins. Summary: Spleen: The spleen is involved in blood filtration, storage, and immune functions. It acts as a reservoir for blood and removes damaged blood cells and it primarily receive only oxygenated blood. Liver: The liver receives both oxygenated blood from the hepatic artery and deoxygenated, nutrient-rich blood from the hepatic portal vein. It is responsible for various metabolic and detoxification functions. Gill: Gills are the respiratory organs of aquatic animals and play a role in extracting oxygen from water and releasing carbon dioxide. They receive oxygenated water but also receive deoxygenated blood for gas exchange. Lung. It plays a central role in oxygen exchange, as deoxygenated blood from the heart is sent to the lungs to pick up oxygen and release carbon dioxide.