Structure & Function Of The Body Site

Different tissues heart, lungs, stomach) collaborating to perform a complex task.

The smallest living units. Interestingly, their shape tells you their job. For example, long, thin nerve cells are built like wires to carry signals quickly over distances. Structure & Function of the Body

Filled with millions of tiny air sacs (alveoli). Their structure provides a massive surface area—roughly the size of a tennis court—squeezed into your chest to allow for maximum oxygen absorption. 5. Control and Command (The Wiring) Different tissues heart