| What is the Circulatory System? | This is a closed system in the human body where red blood cells transport oxygen to carbon hydroxide and other waste products away from tissues. |
| What does the Circulatory System transport? | Oxygen and molecules like glucose and amino acids to all parts of the body. |
| What essential organs monitor and control the circulatory system? | The kindney and liver |
| What is the essential organ of the Circulatory System? | The heart |
| Why is the double pump of the heart so important? | It enables all mammals to maintain and constant body temperature. |
| Why is the circulatory system an enclosed system? | because the fluid enclosed in the vessel does not easily mi with bother body fluids. |
| What are the 3 composed elements in the Circulatory System? | The heart - a muscular pump.
The blood vessels - a network of tubes that passes through the body.
The blood - that circulates within these vessels |
| Where does the left side pump its blood too? | To all parts of the body |
| What does the blood travel through to get to all parts of the body? | It travels through arteries, smaller arterioles and veins. It also travels through capillaries where diffusion takes place. |
| What is the major structure of the respiratory system? | This is the lungs that hang freely |
| What are the lungs connected too? | The lungs are connected too the air tube or bronchus and blood vessels that surround them. |
| Where does the air enter the body from? | It enters through the nostrils and passed through an area lined with hair that filters the dust out of the air. It passes the back of the mouth and enters the larynx and trachea. It then goes to the bronchus and to the alveoli. |
| Is the respiratory system a double or one cycle pump? | It is a one cycle pump that pumps the air in and out of the lungs. |
| Why does the thoracic cavity need to be flexible in the respiratory system? | it needs to be flexible in order to fill the lungs with air but to also release waste air. |
| What protects the lungs? | The rib cage and the diaphragm |
| What happens to the rib cage and diaphragm during inhalation and exhalation? | During inhalation the rib cage moves upward and out ward and the diaphragm moves downward. During Exhalation the ribs and diaphragm return to there original resting position. |
| What is the Alveoli? | It is where the oxygen from the air taken in from the body is diffused. |
| What happens to the gasses that aren't taken to the Alveoli? | They are expelled during exhalation |
| Once the oxygen had diffused and has entered the blood stream what does it do? | it is transported to the location of the body that oxygen is needed. The oxygen is then released to be used during the process of cellular respiration. |
