Nociceptors can be stimulated by...
A) thermal means.
B) chemical means.
C) mechanical means.
D) all of the above.
Ans: D) all of the above.
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Keratinocytes are
A. the most abundant cell type in the epidermis. B. found throughout all epidermal strata. C. sometimes alive and sometimes dead, depending on where they are found. D. able to synthesize the protein keratin. E. All of the choices are correct.
In which of the following forms does Ca2+ exhibit profound effects on such things as neuromuscular excitability?
a. free, unbound diffusible Ca2+ b. intracellular Ca2+ c. calcium phosphate crystals impregnated in the organic matrix of bone d. calcium bound to plasma proteins e. insoluble Ca2+ salts
The second largest portion (44%) of blood that settles at the bottom of centrifuged blood is called _____.
Fill in the blank(s) with the appropriate word(s).
The fetal stage of development begins at the end of the eighth week.
Answer the following statement true (T) or false (F)