ANATOMY

Detailed explanation-1: -Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs. For instance, digestive system organs cooperate to process food.

Detailed explanation-2: -Just as cells join together to form tissues, different tissues join together to form organs. An organ is a structure made up of two or more tissues that work together to carry out a specific job.

Detailed explanation-3: -Tissues come together to form organs. For example, lungs, trachea, etc. Several organs in the body come together to perform a common body function and it is known as organ system.

Detailed explanation-4: -A cluster of cells similar in structure, performing the same particular function forms a tissue. Tissues in turn group together and form the organs. In turn, the organ system is formed when a group of organs is dedicated to performing a function.

Detailed explanation-5: -Groups of Tissues Form Organs An organ is a structure made of two or more tissues that work together. The heart (Figure below) is made up of the four types of tissues. The four different tissue types work together in the heart as they do in the other organs.