Histamine's primary role in the respiratory system is as a
A) surfactant.
B) vasodilator.
C) bronchoconstrictor.
D) vasoconstrictor.
E) bronchodilator.
C) bronchoconstrictor.
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Name the type of membrane channel that randomly opens and closes and is found in dendrites, cell bodies, and axons of all types of neurons
a) leakage channel b) ligand-gated channel c) mechanically gated channel d) voltage-gated channel e) pressure-sensitive channel
Define benign
What will be an ideal response?
____________________ refers to the synthesis of larger organic molecules from smaller organic molecules
Fill in the blank(s) with correct word
The key difference between fetal hemoglobin and adult hemoglobin is that fetal hemoglobin has a lower affinity for oxygen, because the levels of oxygen in placental blood is 2 to 3 times higher than other systemic arteries
Indicate whether the statement is true or false.