Which of the following statements is incorrect?
A) The contractions of skeletal muscles pull on tendons and move bones of the skeleton.
B) Skeletal muscles store nutrient reserves.
C) Skeletal muscles are responsible for the pumping action of the heart.
D) Skeletal muscles support the weight of some internal organs.
E) Skeletal muscle contractions help maintain body temperature.
Answer: C
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With the Bohr effect, more oxygen is released because a(n) ________
A) decrease in pH (acidosis) weakens the hemoglobin-oxygen bond B) increase in pH (alkalosis) strengthens the hemoglobin-oxygen bond C) decrease in pH (acidosis) strengthens the hemoglobin-oxygen bond D) increase in pH (alkalosis) weakens the hemoglobin-oxygen bond
Which of the following drugs are used to stimulate respiration in neonates after a C-section?
a. naloxone b. doxapram c. yohimbine d. theophylline
Does an Rh+ mother carrying an Rh? fetus require a RhoGAM injection? Explain your answer
A) No, she will not require a RhoGAM injection because the fetus is not at risk for Rh incompatibility. The fetus is not at risk because its RBCs lack Rh surface antigens and the mother's plasma lacks anti-Rh antibodies. B) No, she will not require a RhoGAM injection because the fetus is not at risk for Rh incompatibility. The fetus is not at risk because its RBCs contain Rh surface antigens and the mother's plasma has anti-Rh antibodies. C) Yes, she will require a RhoGAM injection because the fetus is at risk for Rh incompatibility. The fetus is at risk because its RBCs contain Rh surface antigens and the mother's plasma has anti-Rh antibodies. D) Yes, she will require a RhoGAM injection because the fetus is at risk for Rh incompatibility. The fetus is at risk because its RBCs lack Rh surface antigens and the mother's plasma has anti-Rh antibodies. E) Yes, she will require a RhoGAM injection because the fetus is at risk for Rh incompatibility. The fetus is at risk because its RBCs lack Rh surface antigens and the mother's plasma lacks anti-Rh antibodies.
Compare the connective tissues of bone and cartilage. What structural feature do they share?
A) Lacunae B) Trabeculae C) Lamellae D) Chondrocytes