Water-soluble (lipid-insoluble) ions have to be smaller than what diameter in order to use protein channels for passage across the membrane?
a. 0.1 nm
b. 0.4 nm
c. 0.8 nm
d. 1 nm
e. 8 nm
c
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If the upper respiratory tract becomes blocked, it might be necessary to perform which procedure?
A. Atelectasis B. Bronchodilation C. Bronchiostomy D. Tracheostomy E. Laryngectomy
How does the muscular system contribute to osteoporosis?
A. Pain following injury helps prevent further injury. B. Calcitonin is used to treat osteoporosis. C. Lack of exercise reduces muscle stress on bone. D. It is impacted by inadequate amounts of calcium and vitamin D in the diet. E. Blood clotting starts repair process.
The left ventricle has to pump more blood than the right ventricle because the left ventricle has to pump blood through the systemic circulation, which is much larger than the pulmonary circulation
Indicate whether the statement is true or false.
The figure illustrates the joints and bones of the rib cage. What does "B" represent?
A. costochondral joint B. sternum C. manubrium D. sternal symphyses E. sternocostal synchrondrosis