are correct.33. AV nodal delaya. maintains cardiac output by allowing enough ventricular filling.b. prevents excessive stimulation of ventricles.c. is due to the fact that fibers that make up AV node are smaller in diameter.a allows ventricular repolarization.c. Only (a), (b) and (c) are correct.34. Which of the following about action potential in autorhytmic cells is INCORRECT?Resting membrane potential does not remain stable.b. Repolarization phase is due to opening of K+ channels.Depolarization phase is due opening of Na+ channels.d.a.с.Resting membrane potential is more positive compared to cardiac muscle fibersNone of the above is INCORRECT.е.

The AV node is a highly specialized conducting tissue that slows the impulse conduction considerably…

nodal delay a. maintains cardiac output by allowing enough ventricular filling. b. prevents excessive stimulation of ventricles. c. is due to the fact that fibers that make up AV node are smaller in diameter. (a allows ventricular repolarization. c. Only (a), (b) and (c) are correct.

nodal delay a. maintains cardiac output by allowing enough ventricular filling. b. prevents excessive stimulation of ventricles. c. is due to the fact that fibers that make up AV node are smaller in diameter. (a allows ventricular repolarization. c. Only (a), (b) and (c) are correct.

Biomedical Instrumentation Systems

1st Edition

ISBN:9781133478294

Author:Chatterjee

Publisher:Chatterjee

Chapter7: Instrumentation In Diagnostic Cardiology

Section: Chapter Questions

Problem 3Q

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Concept explainers

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.

Question

are correct.
33. AV nodal delay
a. maintains cardiac output by allowing enough ventricular filling.
b. prevents excessive stimulation of ventricles.
c. is due to the fact that fibers that make up AV node are smaller in diameter.
a allows ventricular repolarization.
c. Only (a), (b) and (c) are correct.
34. Which of the following about action potential in autorhytmic cells is INCORRECT?
Resting membrane potential does not remain stable.
b. Repolarization phase is due to opening of K+ channels.
Depolarization phase is due opening of Na+ channels.
d.
a.
с.
Resting membrane potential is more positive compared to cardiac muscle fibers
None of the above is INCORRECT.
е.

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