No, organs do not float in blood. Blood is primarily contained within a network of blood vessels, not a free-flowing pool within the body. The statement that "internal organs do not float in a pool of blood because blood is normally confined to blood vessels" is supported by multiple sources (Merck Manuals). Our organs are held in place by connective tissues, such as fascia (Reddit AskScience), and other structural supports within the body cavity.
While blood cells, nutrients, and waste products float within the plasma component of blood (Cleveland Clinic), this is a liquid medium within the blood vessels, not a surrounding bath for the organs. The circulatory system ensures efficient transport of these components throughout the body. Internal bleeding, or hemorrhage, occurs when blood leaks out of these vessels, leading to potential complications (Merck Manuals).
The image of organs floating in blood is inaccurate; the structure and function of the human body relies on the contained nature of the circulatory system within its vessels and the supportive framework of connective tissue holding the organs in place.
The only situation where something approximating organs floating in blood might occur would be within a zero-gravity environment, as seen in space travel. In microgravity, bodily fluids including blood shift and distribute differently, as highlighted by NASA (NASA). However, even then, the organs maintain structural integrity thanks to their connective tissues.
