Which of these statements about the ECG is not true: during the T wave, both atr

Question

Which of these statements about the ECG is not true: during the T wave, both atria are contracting and emptying their blood ventricles during the QRS complex, the tricuspid and bicuspid valves are slapping shut the time between the P wave and QRS complex is created by the slow conduction velocity in the AV node during the P wave there is no heart sound the ventricles are contracting during the QRS complex Which statement about sympathetic and parasympathetic control of heart rate is false: never fibers release acetylcholine are their transmitter substance causes an increase in potassium permeability in SA nodal cells nerves cause a slowing of the heart rate by activating receptors acetylcholine causes a hyperpolarization on the sinoatrial nodal cells parasympathetic nerve fibers release acetylcholine as their transmitter substance Which question a he heart valves is false: blood through the pulmonary semilunar valve and into the pulmonary vein oxygenated blood goes through the mitral valve and into the left ventricle blood from the left ventricle goes through the aortic semilunar valve into the aorta deoxygenated blood leaves the right atrium and goes through the tricuspid valve the bicuspid valve is oxygenated blood and the tricuspid valve is in deoxygenated blood When comparing a skeletal muscle cell lo a cardiac muscle cell (myocyte), which is false: cardiac myocytes have gap junctions but skeletal muscle cells do not have these integral membrane protein channels both cardiac myocytes and skeletal muscle cells have voltage-gated potassium channels on their cell membranes both skeletal muscle cells and cardiac myocytes have a reticulum that has high calcium concentration both skeletal muscle cells and cardiac myocytes have T-tubules that carry the action potential into the interior of the cell Which of the following will increase cardiac output (remember: CO = HR SV): Which of the following about skeletal muscle contraction is false: Which of the following is false about neuron anatomy: Which of the following about drug action is true: Which of the following causes he polarization part of the action potential: passive sodium channels inhibitors chemically-gated channels voltage-gated sodium channels voltage-gated potassium channels the electrogenic sodium/potassium ATPase pump

Explanation / Answer

6- option a

7 - option c

8- option c

9- option b

10- option c

11- option a

12- option e

13- option e

14- option c

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

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