What is the term for the movement of embalming solutions from capillaries into interstitial fluids?

The movement of embalming solutions from capillaries into interstitial fluids is best described by the term diffusion. Diffusion refers to the process by which molecules move from an area of higher concentration to an area of lower concentration, which is essential in the context of embalming. When an embalming solution is injected into the vascular system, it travels through the capillaries and diffuses into the surrounding interstitial tissues. This ensures that the embalming fluid effectively reaches and preserves the body tissues.

In contrast, other terms like the rate of osmosis pertain to the movement of water molecules across a semi-permeable membrane, which is not the primary mechanism at play during the diffusion of an embalming solution. Similarly, capillary action refers to the movement of liquid within the spaces of a porous material due to the forces of cohesion and adhesion, but it does not directly describe the transfer of solutions from capillaries to interstitial spaces. Intravascular embolism relates to a blockage within the blood vessels, which is unrelated to the process of diffusion and the distribution of embalming solutions in the body. Thus, diffusion accurately captures the process involved in the movement of embalming solutions from capillaries into interstitial fluids.