Show:
Circulatory System
Respiratory System
Homeostasis
Disorders
Miscellaneous
100
What part of the heart receives oxygenated blood from the lungs?
The left atrium
100
What muscle allows air to move into your lungs?
The diaphragm
100
Why is it important for your body to maintain homeostasis?
So that you don't fall ill and your body maintains proper working order.
100
What would happen if your nose were blocked?
You would have one less airway to moisten the air and filter it from dust particles.
100
What is the job of the respiratory system?
Gas exchange
200
What part of the blood carries oxygen to all parts of your body?
The red blood cells
200
From what structure does oxygen diffuse into the circulatory system?
Alveoli
200
What would happen if your body had too much carbonic acid in the bloodstream?
Your heartrate would increase so that the blood can cycle back to the lungs where carbon dioxide could be released.
200
What happens when the valves in your circulatory system stop working properly?
Blood leaks backward, causing irregular pressure, clots, and varicose veins.
200
What happens when the diaphragm relaxes?
It pushes upward and you exhale.
300
Which part of the heart pumps deoxygenated blood to the lungs?
Right ventricle
300
What parts of the body does air move through once it enters the nose/mouth?
Pharynx, larynx, trachea, bronchi, bronchioles, alveoli
300
Why does your breathing rate increase during exercise?
Your body needs more oxygen to release more energy so breathing rate increases to intake more oxygen.
300
What would happen if your alveoli were damaged?
Oxygen could not diffuse into the bloodstream and carbon dioxide could not properly leave the body.
300
Carbonic acid makes the environment more basic. True or false?
False, carbonic acid makes a solution more acidic!
400
What is the name of the blood vessel that brings deoxygenated blood to the lungs?
Pulmonary artery
400
What is the difference between the larynx and the pharynx?
The larnyx is the voicebox and the pharynx is the throat.
400
Why is it important for the arteries to have thick muscular walls?
They transport blood to places far from the heart and need to be able to move it quickly/forcefully.
400
What would happen if the capillaries lining the small intestine's villi stopped working properly?
Nutrients could not be absorbed into the bloodstream.
400
What part of your body manufactures more red blood cells?
Bone marrow
500
What is the difference between capillaries, arteries, and veins?
Arteries bring oxygenated blood to all parts of the body. Veins bring deoxygenated blood back to the heart and eventually the lungs. Capillaries are the thinnest blood vessels that allow for gas exchange.
500
Why does carbon dioxide output increase during exercise?
Your body's cells need more energy so they perform extra cellular respiration. In order to release energy from sugar, the body must use oxygen. A product of this reaction is carbon dioxide. Thus, your body releases more of this product.
500
What two systems work together to control blood pressure?
Nervous and circulatory
500
Why do people have asthma attacks?
Their airways are narrowed an have limited air flow. Less gases through the alveoli. Thus, less gas exchange occurs. Then, the cells don't receive the oxygen that they need and carbon dioxide builds up. In the attack, the body goes into shock because it is not in homeostasis. This person needs to receive oxygen as soon as possible.
500
What is the chemical equation for cellular respiration? (common names OK)
Sugar + Oxygen = Carbon dioxide + Water + ENERGY (ATP)