<span>When an individual is more than a couple of meters underwater, the air pressure in the lungs is greater than the air pressure at the waters surface. If a snorkel were used, it would move the air from the lungs to the surface, making it very difficult to breath
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Answer:
Intrinsic conduction system of the heart consists of the passage of the electrical impulse from the atrial node to the purkinje fiber system, to produce ventricular contraction.
Explanation:
The heart's electrical conduction system allows the heart to fulfill its blood-pumping functions through the alternating movements of contraction and relaxation of its musculature.
- The nerve impulse begins in the sinoatrial node (SA), located at the top of the right atrium. This produces the atrial contraction to pass the blood from the atria to the ventricles.
- From the SA, the impulse travels to the atrial-ventricular node (AV), located in the interventricular septum.
- In AV, the impulse is briefly delayed and then transmitted to the His bundle (HB), until the HB splits into a right and a left branch. The left branch is divided into three fascicles: anterior, middle and posterior.
- Finally, from each branch and its fascicles originate the Purkinje fibers, which are introduced into the heart muscle and produce - when the nerve impulse arrives - the contraction of both ventricles, and the exit of blood from their cavities.
This series of steps is responsible for the heart being able to pump blood throughout the body.
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Intrinsic conduction system of the heart brainly.com/question/4106983
Answer:
<h2>The answer is
"Physical Fitness."</h2>
Explanation:
Physical Fitness (according to the <u><em>Centers for Disease Control and Prevention</em></u>) is the ability to carry out daily tasks with vigor and alertness, without undue fatigue and with ample energy to enjoy leisure-time pursuits and respond to emergencies. This definition clearly explains the answer, but I'll be giving you more details.
So, how are the daily life activities safely and effectively met without being fatigued?
This means that when you're physically fit, you can do many tasks without having injury (or less likely have an injury). This is because the person who exercises has kept his body strong and healthy.
What is adapting and responding favorably to physical effort?
This means that the person is positive about his wellness. He is positive about doing physical activities. He knows that this can result to a more enhanced quality of life for him. He is also interested in exercising because he's searching for personal growth.
Answer:
What is Shaker exercise
Explanation:
The Shaker exercise is based on the upward and forward movement of the hyolaryngeal structures resulting from the pull of the thyrohyoid, mylohyoid, geniohyoid, and anterior belly of digastric muscles contracting.May 27, 2009
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Answer:
A. Perform the Heimlich maneuver
Explanation:
This would be the best and fastest way the get the piece of candy out of the friends throat.