Please mark all letter choices that apply to the question. 13. Increased cAMP as

Question

Please mark all letter choices that apply to the question. 13. Increased cAMP as a downstream event of epinephrine and norepinephrine stimulation of the left ventricle produce PKA. Which of the following events in the cardiac muscle physiology is influenced by the increase in PKA? O A. Action potential enters from O B. Voltage-gated Ca2+ channels O C. Ca2+ induces Ca2+ release adjacent cell open. Ca2+ enters the cell through ryanodine receptor channels (RyR2) O D. Local release causes Ca2+ spark. O E. Ca2+ ions bind to troponin to initiate contraction OF. Relaxation occurs when Ca2+ unbinds from troponin O G. Ca2+ is pumped back into the sarcoplasmic reticulum for storage O H. Ca2+ is exchanged with Na+ O . Na+ gradient is maintained by the Na+/K+ ATPase

Explanation / Answer

The steps mentioned in C, D, E, F, G, H occurs in the cardiac muscles under the influence of increased PKA.

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.