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Tasya [4]
3 years ago
15

Which of the following statement(s) is (are) true? A. The force the heart must overcome in order to pump blood is known as the i

ts stroke volume. B. The term preload refers to a tension, or pressure, that the left ventricle must develop in order for the heart to function properly. C. The preload and afterload are the primary factors that cause the heart rate to change. D. Contractility of the heart muscle refers to the force of contraction that this muscle can exert. E. Both C and D are true.
Medicine
1 answer:
Verizon [17]3 years ago
6 0

Answer:  D. Contractility of the heart muscle refers to the force of contraction that this muscle can exert.

Explanation:

The myocardial contractility is ability of the heart muscles to contract. This is achieved by the forces which develop between the contracting muscles caused by the filaments of actin and myosin.

The degree of binding of the muscle filaments dependents upon the calcium ion concentration. These actions are controlled in vivo by the sympathetic nervous system. It is driven by the release of the catecholamine, which is a process which determines the calcium ion concentration inside the cytosol of the muscles of the heart.  

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Does marijuana stump growth?
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no

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6 0
3 years ago
Who identified a Patient Bill of Rights? ​
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Imagine that you are working with a team of bioarchaeologists that has just excavated a medieval cemetery site in Italy. The cem
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By analyzing the pelvis bone (sex determination) and the length of the diaphyseal bone and nonsynovial joints (age determination of non-adult skeletons and adult skeletons, respectively)

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When an emt takes the time to ask permission from a conscious adult to do an assessment and procedures, this is respecting the l
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<h3>What is a consent?</h3>

Consent is the voluntary acceptance of another person's offer or wish. It has specific definitions as used in the legal system, medical field, scientific community, and sexual relationships. Consent may not mean what is commonly believed when used in a particular circumstance. For instance, a person with a mental illness, someone with a limited mental capacity, or someone who isn't of legal sexual consent age could voluntarily engage in a sexual act that doesn't satisfy the legal requirements for consent as specified by the relevant law.

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