What type of tissue is simple columnar tissue?
a. epithelial tissue
b. connective tissue
c. muscle tissue
d. nervous tissue
a. epithelial tissue
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Which of the following organic nutrients are NOT absorbed by capillaries in the intestinal villi?
a. carbohydrates b. proteins c. lipids d. none of the listed responses is correct
Which ventricle is located between the two halves of the thalamus?
A. Third ventricle B. First ventricle C. Second ventricle D. Fourth ventricle
If sodium ions cannot enter a muscle fiber in response to a stimulus,
A. contraction cannot occur. B. relaxation cannot occur. C. sodium ions will be released from the sarcoplasmic reticulum instead. D. the active sites are left exposed. E. the action potential travels into the muscle anyway.
Closed, fluid-filled sacs that function as cushions are called bursae.
Answer the following statement true (T) or false (F)