Macroscopic A&P
True or False, the lungs are made of muscle.
What is False?
These are the blood vessels that sit on alveoli
What are capillaries?
This muscle allows for air movement in the lungs.
What is the diaphragm?
This is why capillaries are effective at gas exchange.
What is they are very thin?
An increase in CO2 in the blood causes this pH change
What is decrease?
This is the key passageway that connects the mouth/nose to the rest of the respiratory system.
What is the trachea?
This is the cell responsible for carrying oxygen.
What are red blood cells (RBCs)?
When holding your breath, the pressure in the lungs and the atmosphere around you become ____
What is equal / the same?
During gas exchange, this gas moves from the blood into the alveoli
What is carbon dioxide?
This part of the brainstem is responsible for changing breathing rate to return pH to normal
What is the medulla?
These are the smaller branches that come of the bronci.
What are the bronchioles?
This is the key protein that binds to oxygen.
What is hemoglobin?
When breathing in, the diaphragm does this motion.
What is contract/move down?
True or false, CO2 attaches to the heme group of hemoglobin.
These structures detect changes in pH.
What are chemoreceptors?
This is the key function of the larynx.
What is speaking / voice?
This is the number of oxygen molecules a single hemoglobin can bind to.
What is 4?
When breathing out, the diaphragm relaxes and volume and pressure of the lungs does this.
What is volume decreases and pressure increases?
Gasses like to move from a ____ to a _____ concentration
What is high to low?
This is the reason that carbon monoxide is so dangerous
What is CO has a higher affinity for hemoglobin?
This is the reason that alveoli are round, sac-like shapes.
What is to increase surface area for gas exchange?
These are the key structures inside hemoglobin that allow for binding
What is Iron (Fe) and a heme group?
Without a helmet in space, a person's lungs would collapse for this reason.
What is that outer space has much less pressure than our lungs, meaning the air from our lungs would be forced out?
This is the reason that athletes have trouble playing in Denver even though they breathe the same amount of air. (Don't just say there's less oxygen, WHY is this a problem)
What is the lower amount of oxygen creates less of a concentration gradient, meaning less oxygen flows into the bloodstream?
This is the VERY first thing in the feedback loop that would happen after a person would start running
What is a buildup of CO2 in the bloodstream?