nonpolar covalent bond. (physical chemistry). A bond in which a pair of electrons is distributed or shared equally between two atoms. 1  Facebook.2  Twitter.onpolar covalent bond. (physical chemistry). A bond in which a pair of electrons is distributed or shared equally between two atoms. 1  Facebook.
When is a barrel chest a sign of a disease process? Chronic obstructive pulmonary disease (COPD) is the most common instance in which a barrel chest will occur. In these cases, itâs a sign of the lungs being over-expanded. This is caused by the loss of elasticity and results in the person having hyper-inflated lungs.
What causes the rush of chest heaviness, etc. right after a dose of morphine? Just wondering... I was trying to describe (to someone who has never had any IV pain meds) the feeling that comes over you right after being given morphine, and that made me wonder specifically about that transient sensation of chest heaviness.