Circulatory and Respiratory Systems

Front

The System that contains blood vessels and the heart is the...

Back

circulatory system

Front

When you breathe, your lungs take in ___ and remove ___.

Back

oxygen, carbon dioxide

Front

Identify this system.
Options: Digestive System, Circulatory System, Immune System, Respiratory System

Back

Respiratory System

Front

Red blood cells hold onto O₂ with the protein ________ which needs the element ________.

Back

hemoglobin, iron

Front

This part of blood helps it clot, when you get cut. Options: Red blood cells, Plasma, Platelets, White blood cells

Back

Platelets

Front

What makes up about 55% of the blood and is mostly made of water?

Back

Plasma

Front

What does blood transport?

Back

All of the above

Front

The part of the respiratory system that humans use for talking is the...

• trachea
• pharynx
• larynx
• bronchi

Back

larynx

Front

The small blood vessels where exchange of O₂ and CO₂ occurs are called...

Back

capillaries

Front

The part of the lungs where gas exchange occurs is/are called.

Back

alveoli