Respiratory muscles that become active when the depth and frequency of respiration must be increased markedly include the
A) diaphragm.
B) external and internal intercostals.
C) transversus thoracis, abdominal obliques, and rectus abdominis.
D) sternocleidomastoid, serratus anterior, and scalenes.
E) All of the answers are correct.
E) All of the answers are correct.
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Bursae are found in all of the following areas except
A) tendon sheaths. B) beneath the skin covering a bone. C) within connective tissue exposed to friction or pressure. D) around blood vessels. E) around many synovial joints.
During embryological development the body first developed into ________ primary germ layers. (Note: Be sure to spell out your answer).
Fill in the blank(s) with the appropriate word(s).
Erythropoietin (EPO) was first isolated from the urine of anemic patients who had high circulating levels of the hormone. Despite the presence of the hormone that stimulates red cell production, however, these patients were unable to produce adequate amounts of hemoglobin or red cells. Give some possible reasons that the patients' own EPO was unable to correct their anemia.
What will be an ideal response?
Which statement(s) would be true about the resting membrane potential?
a. It is closer to the equilibrium potential for Na+ than to the equilibrium potential for K+ b. It is closer to the equilibrium potential for K+ than to the equilibrium potential for Na+ c. It is about the same as the equilibrium potential for Cl- d. Only a and b are true e. Only b and c