Why is pulling a hair painful, yet cutting a hair is not?
What will be an ideal response?
Pulling a hair is painful because its root is attached deep within the hair follicle, the base of which is surrounded by a root hair plexus consisting of sensory nerves. Cutting a hair is painless because a hair shaft contains no sensory nerves.
You might also like to view...
Which one of the following sounds is not considered a sonorant?
a) [?] b) [m] c) [w] d) [s]
How is blood type determined?
A. By mixing blood with antibodies to see if agglutination occurs B. By mixing the serum of blood with different types of serum to see if agglutination occurs C. By mixing the white blood cells of two different blood types together to see if agglutination occurs D. By mixing the red blood cells of two different blood types together to see if agglutination occurs
Osmosis is the movement of
A. water through a selectively permeable membrane to a solution containing a higher concentration of impermeant solute. B. water through a selectively permeable membrane to a solution containing a lower concentration of impermeant solute. C. molecules from a high concentration to a low concentration. D. ions from a low pressure region to a high pressure region through a selectively permeable membrane.
Trick question: What does the tensor veli palatini do? (
What will be an ideal response?