Answer the following statements true (T) or false (F)
1. Hemoglobin can carry oxygen.
2. Hemoglobin can carry carbon dioxide.
3. Oxyhemoglobin carries oxygen from the cells to the lungs.
4. Pernicious anemia results from a lack of iron in the blood.
5. The loss of a large amount of blood can result in anemia.
1. TRUE
2. TRUE
3. FALSE
4. FALSE
5. TRUE
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White blood cells may become macrophages
Indicate whether the statement is true or false
Platelets release ________, a chemical vasoconstrictor that contributes to the vascular spasm.
A. heparin B. thromboplastin C. serotonin D. prostacyclin E. thrombin
Which of the following is not associated with the composition of the cytoskeleton?
A) Microtubules B) Intermediate filaments C) Terminal web D) Microfilaments E) Cilia
A hitchhiker is doing what muscle action with his thumb?
A. Opposition B. Elevation C. Depression D. Reposition