The __________ constrictors are throat muscles essential for swallowing.
Fill in the blank(s) with the appropriate word(s).
pharyngeal
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Bill wants to determine his blood type, so he takes a few drops of blood from a puncture wound in his finger and mixes it with various antisera. His blood cells agglutinate when mixed with the anti-A serum but not with the anti-B. Therefore this is true:
A) Bill's plasma contains B antibodies. B) Bill could donate blood to an individual with type B blood. C) Bill could receive type B blood in a transfusion. D) Bill's plasma would cross-react with type O red blood cells. E) Bill is Rh positive.
Which form of endoplasmic reticulum modifies and packages newly synthesized proteins?
A) smooth endoplasmic reticulum B) rough endoplasmic reticulum
In smooth muscle, cross-bridging occurs due to
A. calcium binding to troponin. B. calcium binding to calmodulin. C. myosin kinase adding a phosphate to myosin heads. D. both calcium binding to troponin and calmodulin. E. both calcium binding to calmodulin and myosin kinase adding a phosphate to myosin heads.
Which statement regarding age as a predisposing factor is false?
A. Children are more susceptible to diseases than adults because of their age. B. Children and the elderly are more susceptible to disease due to age. C. This predisposing factor can be controlled by an individual. D. As people live longer they become more susceptible to disease.