Organs

* Definition: A distinct structure made up of different tissues that work together to perform a specific function.

* Examples: Heart, lungs, stomach, brain, skin, kidneys, liver, etc.

* Key Points:

* Organs have a defined shape and location within the body.

* They are composed of various tissues (muscle, connective, nervous, epithelial).

* They carry out specialized tasks that contribute to overall bodily function.

Systems

* Definition: A group of organs that work together to perform a complex, interrelated function.

* Examples: Digestive system, circulatory system, respiratory system, nervous system, skeletal system, muscular system, etc.

* Key Points:

* Systems are made up of multiple organs that depend on each other.

* They coordinate activities for overall body function.

* Systems often interact with each other, creating a complex network of processes.

Here's a simple analogy:

Imagine a car.

* Organs are like the engine, wheels, steering wheel, brakes, etc. Each part has a specific job.

* Systems are like the driving system (engine, transmission, wheels), the braking system, the steering system, etc. These systems are made up of multiple organs working together to achieve a larger goal.

In summary:

* Organs are the building blocks of systems.

* Systems are collections of organs that work together to keep the body alive and functioning.