Which of the following stimulates uterine contractions?
a. Oxytocin from the posterior pituitary
b. Prostaglandins from the decidua
c. Progesterone from the placenta
d. Both a and b
e. Both a and c
D
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This is the least powerful type of skeletal muscle fiber
a) slow oxidative fiber b) fast oxidative fiber c) fast glycolytic fiber d) slow glycolytic fiber e) None of these choices.
In an isotonic contraction, the muscle ________.
A) changes in length and moves the "load" B) does not change in length but increases tension C) never converts pyruvate to lactate D) rapidly resynthesizes creatine phosphate and ATP
Select the structure that is not located in the cytosol of the cell
a. ER. b. golgi complex. c. lysosome. d. mitochondrion. e. all of the above are located in the cytosol
Most reabsorption of water occurs in which of the following structures?
(A) stomach (B) jejunum (C) sigmoid colon (D) ascending colon (E) rectum