How do the cardiovascular and respiratory system work together to deliver blood to the body tissues?
The respiratory system functions in the exchange of gases with the outside environment. Oxygen is inhaled through the nasal cavity or the mouth, and it travels to the alveoli in the lungs. There, the capillaries exchange the oxygen for carbon dioxide. The oxygenated blood flows back to the heart from the lungs. It enters the left side of the heart and is delivered to all the body tissues via the aorta. In the capillaries of the body tissues, oxygen is exchanged for carbon dioxide. This deoxygenated blood flows back to the right side of the heart and then to the lung. In the capillaries that run across the alveoli, carbon dioxide is exchanged for oxygen that has recently been inhaled. The carbon dioxide will then be exhaled through the mouth and nasal cavity.
Exercise Activity
Exercising is an activity that requires the actions of multiple body organ systems. Each system performs its specific tasks, but they must work together to allow effective total body functioning during exercising.
In this activity, changes in the respiratory and heart rates in response to exercise will be recorded in the following table:
Activity Breathing Rate: bpm(breaths per minute)
Pulse Rate: bpm (beats per minute)
At rest 16 bpm 70 bpm During exercising 30 bpm 135 bpm Immediately after exercising 30 bpm 105 bpm 5 minutes after exercising 25 bpm 90 bpm
