Which of the following is true about the heart?
A) The base of the heart lies beneath the fourth rib.
B) The apex end points downward at about the 5th intercostal space.
C) The average adult heart is about 8 cm long and 5 cm wide.
D) The heart is located lateral to the lungs.
B
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The organelles that are flattened sacs that chemically process molecules are the:
a. endoplasmic reticulum b. flagella c. Golgi apparatus d. lysosome
____________________ are structures in veins that prevent the blood from flowing backwards
Fill in the blank(s) with correct word
Anemia that results from an excessive rate of erythrocyte destruction is classified as what type of anemia?
A. Hypoplastic B. Hemorrhagic C. Hemolytic D. Pernicious E. Malicious
Trypsin is activated by the enzyme ________.
A. enterokinase B. lactase C. lipase D. carboxypeptidase