Where does electrical shock primarily flow during an incident?

Electrical shock primarily flows through muscle tissue and organs because they are highly conductive compared to the skin and other tissues. When an electric current enters the body, it seeks the path of least resistance, which is typically provided by the internal tissues, particularly muscles, due to their high water content and electrolyte concentration.

Muscle tissue is particularly susceptible because it contracts involuntarily in response to electrical stimulation, which can lead to further complications such as muscle damage, additional injuries, or even reactions like cardiac arrest if the heart is affected.

While the skin does have some conductive properties, it can vary significantly in resistance depending on conditions, such as moisture or thickness. Blood, although it is conductive, is contained within the circulatory system and is generally not the primary path for current flow. Hair does not conduct electricity effectively and would not serve as a pathway for electrical current.

Thus, selecting the option related to muscle tissue and organs accurately reflects the nature of how electrical shocks occur within the human body.