(a)[1]
The blood vessel that carries deoxygenated blood away from the heart.
(b)[1]
The cell that engulfs and digests cell debris and bacteria in the lungs.
(c)[1]
The cell that releases antibodies.
(d)[1]
The epithelial cell that releases mucus in the trachea.
(e)[1]
The tissue that stops the trachea from collapsing during inhalation.