3.2 Flashcards
(17 cards)
What is the primary function of the respiratory system?
To get oxygen into the body and carbon dioxide out.
What is the main organ in the respiratory system?
The lungs.
Where does gas exchange occur in the respiratory system?
In the alveoli.
What is another name for the circulatory system?
The cardiovascular system.
What does the circulatory system transport?
- Oxygen
- Nutrients
- Wastes such as carbon dioxide
What are the three major types of blood vessels?
- Arteries
- Capillaries
- Veins
True or False: Arteries transport blood back to the heart.
False
What is produced as a waste product during cellular respiration?
Carbon dioxide.
Fill in the blank: Cellular respiration is the breakdown of food (glucose) in the presence of _______.
oxygen
What is the simplified equation for cellular respiration?
Glucose + oxygen → carbon dioxide + water + energy (ATP)
What is the role of haemoglobin in red blood cells?
To bind oxygen.
What is the pathway of oxygenated blood from the lungs to the body?
- Pulmonary vein
- Left atrium
- Left ventricle
- Aorta
- Arterioles
- Capillaries
What happens to deoxygenated blood after it has delivered oxygen to the cells?
It travels through capillaries to venules, then to veins, and back to the right atrium of the heart.
How is carbon dioxide removed from the body?
It diffuses from capillaries into the alveoli and is exhaled.
What are the components involved in the exchange of gases during respiration?
- Alveoli
- Capillaries
- Red blood cells
Fill in the blank: The pulmonary artery is the only artery that does not contain _______ blood.
oxygenated
What do the respiratory and circulatory systems work together to provide?
Oxygen for cellular respiration and removal of carbon dioxide.
