The myocardial cells receive their blood supply from the coronary arteries that branch off from the aorta.
Answer the following statement true (T) or false (F)
True
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Which of the following structures is least important for supporting the uterus and/or maintaining its position?
A) broad ligament B) transverse cervical (cardinal) ligaments C) uterosacral ligament D) pelvic diaphragm E) round ligament of the uterus
True or False? Peyer patches are found in the appendix. Select one:
a. true b. false
Select the statement that best describes an acid
A) An acid is a chemical that dissociates to release equal amounts of hydrogen ions (H+) and hydroxide ions (OH-). B) An acid is a substance that generally has covalent bonds that do not dissociate into charged particles in water. C) An acid is a chemical that dissociates in water to release a hydrogen ion (H+). D) An acid is a chemical that accepts a hydrogen ion (H+) in a solution.
Relaxation of cardiac muscle typically requires:
A. myosin light-chain dephosphorylation B. activation of the ryanodine receptor C. Ca++ uptake by the SR D. phosphorylation of phospholamban E. activation of the dihydropyridine receptor