Answer:
When you hit your "funny bone," you're not hitting a bone at all. You are hitting the ulnar nerve as it passes around the back of the elbow.1 Because the ulnar nerve sits just on top of the hard elbow, and because most people don't have a lot of fatty cushion in that spot, the nerve is prone to be irritated. The elbow is actually the junction of three bones: the humerus (arm bone), the ulna and the radius (the forearm bones). The humerus bone has a groove on its inner aspect where the ulnar nerve tightly courses just behind the joint. This is the location where the ulnar nerve is most often irritated when the nerve is pinched against the end of the bone.
Hope this helps :)
Answer: However, during exercise, many other muscles become important to respiration. During inspiration, the external intercostals raise the lower ribs up and out, increasing the lateral and anteroposterior dimensions of the thorax.
Answer: streptococcus pneumonia infection
In the case of streptococcus
pneumonia infection, the lungs become inflamed
<span>in
which the alveoli and bronchial passages become plugged with thick fluid or
exudates where the lungs are unable to stretch and partially obstructed. The symptoms
includes colds, high fever, severe chills, headache, cough, and chest pain.
Mostly, bacteria, virus, and fungi cause it.</span>
Answer: Directly
Explanation:
If due to aging and/or lack of maintenance a PPE slows down, even just by a few cycles — the result on incident energy can be really dramatic. And if the circuit breaker refuses to open at all, the incident energy may increase by ten times or more. It really depends on how the next OverCurrent Protective Device (OCPD) upstream sees the fault.
So the arc flash hazard that may occur during an arc flash event is DIRECTLY dependent on the OCPD that is protecting the equipment.
