Human Body Organization

What is the largest organ of the human body?

Approximately how many cells make up the human body?

What body system uses the spinal cord and nerves to communicate with the brain? 

What body system helps convert food into energy and nutrients that the body can use? 

The respiratory system is made up of the trachea, the lungs, and the diaphragm. TRUE or FALSE

What is the jelly inside of the cell called?

Circulatory system includes the heart, blood, and blood vessels. TRUE or FALSE

An organ system is a group of organs that work together to carry out a complex function. TRUE or FALSE

What is a collection of cells with similar shape and function called?

Endocrine system brings oxygen into the body using the lungs. TRUE or FALSE

What is the definition of an organ?

The movement of blood through the heart and body is called:

What is the "brain" of the cell called?

Name 2 shapes of cells.

An organelle is found inside the cell and performs one or more specific jobs to help the cell function. True or False

When you breathe in air, you bring oxygen into your lungs and exhale:

Which part of the body is the control center of the nervous system?

What body system helps to protect us against viruses, bacteria, and parasites?