Smooth muscles are primarily used to
A) move bones.
B) help movements occur smoothly.
C) generate heat.
D) pump blood through the circulation.
E) push substances through tubes.
E) push substances through tubes.
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In ________ capillaries, the endothelial cells are separated by intercellular clefts.
Fill in the blank(s) with the appropriate word(s).
If you spin a tube of blood in a centrifuge, which component of the blood is the heaviest?
A. Red blood cells B. Plasma C. Platelets D. White blood cells
What makes up the axial skeleton?
A) the skull, vertebral column, and pelvis B) arms, legs, hands, and feet C) the skull, vertebral column, and rib cage D) shoulder and pelvic girdles
The reaction by which lactate is formed from pyruvate is catalyzed by lactate ________.
Fill in the blank(s) with the appropriate word(s).