When you push more air over your vocal cords, the sound becomes _________.
As disease in which the alveoli become enlarged making the gas exchange less efficient.
Little sacs at the end of the bronchial tubes where oxygen and carbon dioxide are exchanged.
_________ cells are responsible for protecting the body from agents of disease. Make up 1% of blood cells.
Small - between the arteries and capillaries.
Contracts to pull lungs down (inhale)/Expands to push lungs up (exhale)
Yellowish liquid which contains chemicals, micronutrients, and macronutrients....makes up more than half of the blood.
The majority of your veins carry __________ blood.
Transport water from the roots to the rest of the parts of the plant.
__________ blood travels from the heart to the cells.
Deoxygenated blood is ______ red.
__________ travels from the cells to the heart.
Chemicals from the blood and injured tissue transform proteins in the plasma into fibrin which seals off the injury in the blood vessel.
This system allows the body to take in oxygen from the surrounding air and expel carbon dioxide.
Blood returns to the heart from the cells via the superior and inferior ___________.
Controls levels of chemicals in the plasma.
A protein which receives oxygen from the lungs causes the red color in blood.
Blood vessel that carries blood away from the heart.
Chemicals released by the blood to fight pathogens.
Fish have these which pull oxygen from the water instead of lungs.
The cardiac muscle is an _________ muscle.