Regarding auscultation, which of the below is false? a) it generally involves a

Question

Regarding auscultation, which of the below is false? a) it generally involves a stethoscope b) it is often used to determine the health of the heart valves c) besides the heart, it is often used to diagnose lung disorders d) the S2 sound is the "dubb" sound which is associated with closure of the semilunar valves e) the best position for hearing the heart valves is directly over the valve of interest ____ True or False? Contractile cells of the ventricles (ventricular cardiocytes) have a stable resting membrane potential but conducting cells (myocytes) of the SA node do not (from textbook)___ All of the below are true of the heart's conducting system EXCEPT a) the cells of both the SA and AV node exhibit prepotentials b) the conducting system consists of motor neurons within the heart tissue c) conducting cells of the SA node cannot maintain a stable resting potential d) the AV bundle and the AV node are connected ___ e) all of the above are true ___

Explanation / Answer

7(b) it is often used determine the health of heart valve. Echocardiography is used for diagnosing heart valve disease.

8. Cardiac action potential is a brief change in voltage across the cell membrane of heart cells. The SA cells do don't have stable resting potential it is spontaneous depolarization of the pacemaker that gives the heart it's auto rhythmicity.

Related Questions

Navigate

• Browse (All)
• Browse R
• Subjects

---

---

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