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Veins function as blood reservoirs. For example, in hemorrhage accompanied by a drop in arterial blood pressure, sympathetic nerve impulses reflexly stimulate the muscular wall of the veins. The resulting venous constrictions help maintain blood pressure by returning more blood to the heart. This mechanism ensures a nearly normal blood flow even when as much as 25% of blood volume is lost..

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Which organ is a lymphoid organ that is a reservoir for red blood cells?

The spleen is a lymphoid organ that serves as a reservoir for red blood cells. It plays a role in filtering blood, removing old or damaged red blood cells, and storing blood for emergencies, such as in case of hemorrhage.


Where is extra blood stored in human body?

Extra blood is stored in the venous system, particularly in the veins of the liver, skin, and spleen. The liver acts as a blood reservoir due to its high vascularity and ability to store and release blood as needed. The skin also serves as a blood reservoir, with capillaries and venules able to hold excess blood. Additionally, the spleen can store blood in its sinuses and release it into circulation when necessary.


What is an example of blood cells?

blood cells are small and red


The spleen is the largest endocrine gland?

That statement is incorrect. The spleen is not an endocrine gland. It is part of the immune system, acting as a blood filter and reservoir for red blood cells.


Define exchange pool and reservoir and identify an example of each in the water cycle.?

An exchange pool is a temporary storage area where water is held for a relatively short period before being transferred to another part of the cycle, such as clouds during evaporation. A reservoir, on the other hand, is a more permanent storage location for water, like lakes or oceans. In the water cycle, an example of an exchange pool is the atmosphere, where water vapor exists before precipitation, while a reservoir example is the ocean, which stores the majority of Earth's water.