Human Respiratory System
100
100
The muscular sheet that helps the lungs expand and contract.
diaphragm
The process of taking air into the lungs
Inhalation
The protein in red blood cells that carries oxygen.
Haemoglobin
Component of blood that helps clotting.
Platelets
How does the diaphragm change its shape to force air out of your lungs?
it relaxes (moving up) and pushes against the lungs, and the ribs move down and in, making the chest cavity smaller
This tube carries air from your voice box to your lungs.
Trachea
The air you exhale contains more water vapor and this gas compared to the air you inhale.
Carbon dioxide
The process of oxygen moving from alveoli to blood and carbon dioxide moving from blood to alveoli.
Diffusion
Blood cells that fight infections.
white blood cells
Predict what would happen to the efficiency of gas exchange if the walls of the alveoli became much thicker.
the efficiency would decrease because it would take longer for the gases (oxygen and CO2) to pass through the thicker layer (less efficient diffusion)?
The part of your respiratory system that creates your voice.
Larynx
Many people confuse breathing with cellular respiration. Which process is a chemical reaction that releases energy?
Respiration
Cellular respiration uses glucose and this gas to create energy.
Oxygen
The part of your blood that is mostly water and carries nutrients and waste.
Plasma
The small, hair-like structures in the nose and trachea that sweep out mucus and dirt.
Cilia
Tiny sacs in the lungs where oxygen enters the blood.
Alveoli
The small cell parts where most of cellular respiration happens.
Mitochondria
Waste products of aerobic respiration.
carbon dioxide and water
The smallest type of blood vessel where gas exchange with body cells occurs
Capillaries
This common illness is caused by a virus that attacks the respiratory system, often resulting in a fever, body aches, and cough.
Flu
These two tubes branch off the trachea, one going to each lung.
Bronchi Bronchus
The action of the rib muscles during inhalation.
They contract
The gas that moves from the blood into the air sacs to be exhaled.
Carbon dioxide
Proteins made by the immune system to fight specific pathogens.
antibodies
If a person had a low red blood cell count, what symptom related to energy might they experience, and why?
low energy, because the red blood cells carry the oxygen needed for cellular respiration, which produces energy