Which of the following is not a role of the pericardium?
a. It facilitates heart contraction.
b. It prevents overfilling of the heart with blood.
c. It anchors the heart to surrounding structures.
d. It protects the heart.
Answer: a. It facilitates heart contraction.
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The portion of the sternum first seen on CT axial images arranged in descending order is the manubrium.
Answer the following statement true (T) or false (F)
Which of the following statements is most accurate?
A) Muscle tension remains relatively constant during isotonic contraction. B) T tubules may be sliding during isotonic contraction. C) The I band lengthens during isotonic contraction. D) Myofilaments slide during isometric contractions.
Which of the following is not a role of complement in the immune system
a. increasing the permeability of blood vessels b. attracting immune cells to the site of infection c. marking foreign cells for destruction d. all of the above are roles of complement in the immune system
Which of the following muscles elevates and retracts (adducts) the scapula?
A. Scalenes B. Rhomboid major C. Subclavius D. Serratus anterior E. Pectoralis minor