Science Chapter 5

A muscular organ that pumps blood throughout your body

• skeleton

• heart

• brain

• neurons

All the bones in the body

• organ

• brain

• skeleton

• neurons

A body system that includes the heart, blood, and blood vessels

• intestines

• organ

• brain

• circulatory system

A dome-shaped muscle that moves down and makes more space in your chest for air

• lungs

• system

• bladder

• diaphragm

A group of different tissues that join together into one structure

• muscles

• tissue

• kidneys

• organ

The main organ, or control center, of the nervous system

• brain

• organ

• heart

• intestines

The system of the body that helps you breathe

• excretory system

• circulatory system

• respiratory system

• nervous system

Cells that pass messages throughout your body

• heart

• neurons

• organ

• skin

A body system that removes waste from the body

• muscular system

• excretory system

• circulatory system

• respiratory system

A system of the body that is made up of muscles and the tissues that attach them to bones

• muscular system

• circulatory system

• respiratory system

• digestive system