Cellular Organization and Human Body Systems

Front

What is the simplest level of organization in the human body?

Back

Cell

Front

List the levels of organization in order from simple to complex.

Back

1. Cell 2. Tissue 3. Organ 4. Organ System 5. Organism

Front

What are the main components of the circulatory system?

Back

Heart, blood vessels, and blood

Front

What are nerve cells called?

Back

Neurons

Front

What are the major organs of the respiratory system?

Back

Mouth, nose, trachea, lungs

Front

What are the major organs of the digestive system?

Back

Esophagus, stomach, small intestine, and large intestine

Front

What is the function of the heart in the circulatory system?

Back

To pump blood throughout the body.

Front

What is the role of blood vessels?

Back

To transport blood to and from the heart.

Front

What is the primary function of the lungs?

Back

To facilitate gas exchange (oxygen and carbon dioxide) in the body.

Front

What is tissue?

Back

A group of similar cells that work together to perform a specific function.