Human Body System Overview

What is the relationship between cells, tissues, and organs in the human body?

• Organs are made of tissues, which are made of bones.

• Cells directly form organ systems without forming tissues.

• Cells combine to form tissues, which then form organs.

• Tissues are made of organs, which are made of cells.

Which part of the circulatory system prevents the backflow of blood?

• Capillaries

• Valves

• Veins

• Arteries

What is one thing you have learned so far?

What can happen if your kidneys don't filter your blood?

What is the main organ in the nervous system?

• Stomach

• Brain

• Lungs

• Muscles

Which type of muscle tissue is responsible for moving bones?

• Skeletal muscle

• Nervous tissue

• Smooth muscle

• Cardiac muscle