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BMS 301 LAB CSU EXAM 4 QUESTIONS AND VERIFIED ANSWERS $13.49   Add to cart

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BMS 301 LAB CSU EXAM 4 QUESTIONS AND VERIFIED ANSWERS

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BMS 301 LAB CSU EXAM 4 QUESTIONS AND VERIFIED ANSWERS....

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  • November 12, 2024
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  • BMS 301 LAB CSU
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BMS 301 LAB CSU EXAM 4 QUESTIONS
AND VERIFIED ANSWERS
The source of calcium in skeletal muscle is: - ANSWER the sarcoplasmic
reticulum

The source of calcium in cardiac muscle is - ANSWER the sarcoplasmic
reticulum

extracellular sources

The means of excitation for skeletal muscle is: - ANSWER the nervous system

The means of excitation for cardiac muscle is: - ANSWER inherent
contractions initiated by pacemaker cells

Innervation of skeletal muscle is through - ANSWER somatic nervous system

Innervation of cardiac muscle is through - ANSWER the Autonomic Nervous
System

The length of the refractory period in cardiac muscle is approximately: -
ANSWER 200 msec or more

During the cardiac cycle, an extra systole can be induced by electrical
stimulation during: - ANSWER the relative refractory period.

The two systems of control over cardiac function are Autoregulation via
Einthoven's Law and the nervous system control via somatic nerves, T or F -
ANSWER False

Starling's law of the heart: - ANSWER is the result of the length-force
relationship also observed in skeletal muscle

states that, within physiological limits, the heart pumps out the blood that
returns to it within each cycle.

, is observed in the absence of any nervous or hormonal control.

can also be described as autoregulation.

is the result of cardiac fiber length being proportional to end-diastolic volume.

is demonstrated by an increased force of contraction with increased stretch of
cardiac muscle.

is demonstrated by a decreased force of contraction with decreased stretch of
cardiac muscle.

is demonstrated when an increased venous return results in an increased cardiac
output.

Starling's law of the heart holds that the _____, the greater the force of
contraction. - ANSWER greater the venous return

greater the end-diastolic volume

greater the end-diastolic volume

The SA-node is innervated by: - ANSWER both the Parasympathetic and
Sympathetic nervous systems

The AV-node is innervated by: - ANSWER both the Parasympathetic and
Sympathetic nervous systems

The atria are innervated by: - ANSWER both the Parasympathetic and
Sympathetic nervous systems

The ventricles are innervated by: - ANSWER the Sympathetic nervous system
only

he parasympathetic nervous system - ANSWER uses acetylcholine as a
neurotransmitter

function can be altered by cholinergic agonists and antagonists

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