In an EKG pattern, the P wave is caused by; Repolarization of ventricular nerves Repolarization of atrial...

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Medical Sciences

In an EKG pattern, the P wave is caused by;
Repolarization of ventricular nerves
Repolarization of atrial nerves
Depolarization of atrial nerves
Depolarization of ventricular nerves
The pacemaker of the heart is the:
Purkinje fibers
AV node
SA node
AV bundle
Which of the following waves of an EKG is correct?
P wave-depolarization of atria
QRS wave-repolarization of ventricles
T wave-depolarization of ventricles
QRS wave-depolarization of atria
Which of following is correctly matched?
Tricuspid valve- permits blood flow from right to leftatrium
Pulmonary valve- permits blood flow from left ventricle toaorta
Mitral valve- permits blood flow from left atrium to leftventricle
Aortic valve- permits blood flow from right ventricle topulmonary artery
Once cells of SA node reach threshold:
An action potential is triggered
Heart attack occurs
Heart rate increases
Blood pressure increases
If two white sheep, where white gene is dominant, produces anoffspring that is a black sheep, the white sheep is:
Homozygous dominant
Heterozygous dominant
Heterozygous recessive
Homozygous recessive

Answer & Explanation Solved by verified expert

4.2 Ratings (646 Votes)

1 C Depolarization of atrial nerves The P wave indicate atrial depolarizartion P wave occur when SA node sino atrial node creates an action potential that depolarizes atria Normal PR interval is 06 12 second Option D is incorrect because ventricular depolarization is marked by QRS complex option A is incorrect because ventricular repolarization is marked by T wave Option B is See Answer

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