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.
Extrinsic muscles are contained within a region such as the hand or the leg, and the intrinsic muscles move the fingers but are found outside the region.
Answer:
Standardized Nursing Language
Explanation:
Answer:
Balcetis explains that when people are in shape, they are more likely to view an exercise as achievable. More important than fitness, however, was individuals’ motivation to exercise. Those who were motivated to exercise saw a finish line as closer, than those who were unmotivated.
In a second study, Balcetis experimented with how changing one’s perspective on an exercise, can help to make it seem more doable. Balcetis presented a finish line at the end of a moderate sized path. Her control group looked around their settings as they normally would, and then estimated how far away the finish line was. The experimental group was instructed to look directly at the finish line and to try to eliminate other objects in their point of view. The results: the group that kept their eyes on the prize estimated the finish line to be thirty percent closer than those in the control group.
Last, Balcetis examined how perspective can help directly improve ease and efficiency. She had subjects try a moderately difficult exercise of walking a fair distance with weights. Again, one group kept their eyes on the finish line, while the other group proceeded normally. Those who focused on the finish line, felt that the exercise was fifteen percent easier than those in the control group. The focused group also moved twenty-three percent faster.
So what do all these findings mean? The way we look at exercise can make a big difference in how hard it feels and how hard we work at it. As Balcetis says, “keeping your eyes on the prize, may be an additional strategy you can use to promote a healthy lifestyle.” Well any strategy that makes exercise seem easier and gets me working harder, is one I’m definitely down for.
Explanation:
In a critical care unit, a patient is unlikely to be able to adapt and personalise his or her environment to make it seem more like home.
<h3>What is the purpose of a pressure-relieving mattress?</h3>
A pressure relief mattress is intended to provide additional comfort for people who have (or are at risk of developing) pressure ulcers. The mattress provides a high degree of support for the head and body, relieving pressure points.
They are appropriate for individuals who are at high risk or have pressure ulcers of Grade 3 or 4. These mattresses are especially beneficial for people who are unable to endure the alternating movement of air cells seen in conventional pressure-relief systems.
Learn more about pressure-relieving mattress refer
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