The term "encephala-" relates to which organ?

The term "encephala-" is derived from the Greek word "enkephalos," which means "brain." This prefix is often used in medical and scientific terminology to refer to anything relating specifically to the brain. Understanding this relationship helps in recognizing other terms in neurology or anatomy where "encephala-" might indicate a focus on brain-related structures or functions.

In contrast, the other options are not connected to the brain. For example, "tooth" pertains to dental anatomy, while "outer" suggests something external or superficial, and "cell" refers to the basic structural unit of living organisms. Thus, the correct association of "encephala-" with the brain is consistent with its roots and usage in various contexts.