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Within the muscle tissue of animals and humans, contraction and relaxation of the muscle cells is a highly regulated and rhythmic process. In cardiomyocytes, or cardiac muscle cells, muscular contraction takes place due to movement at a structure referred to as the diad , sometimes spelled "dyad."
A tattoo is a form of body modification made by inserting tattoo ink, dyes, and/or pigments, either indelible or temporary, into the dermis layer of the skin to form a design. Tattoo artists create these designs using several tattooing processes and techniques , including hand-tapped traditional tattoos and modern tattoo machines .
The cardiac cycle is the performance of the human heart from the beginning of one heartbeat to the beginning of the next. It consists of two periods: one during which the heart muscle relaxes and refills with blood, called diastole, following a period of robust contraction and pumping of blood, dubbed systole. After emptying, the heart ...
An adorable way to honor a best friend or loved one is to get matching tattoos. These subtle tattoos use white ink instead of the traditional black for a striking effect. Image credits: @_tan_tattoo
Machine Gun Kelly (née Colson Baker) is giving fans a behind-the-scenes look at the making of his recent blackout tattoo. On Monday, the 33-year-old musician shared an Instagram Reel of the ...
Bruises can appear as halos around a tattoo, or, if blood pools, as one larger bruise. This bluish or dark blurry halo that surrounds a tattoo can also be attributed to ink diffusion or 'blow-out'. Commonly mistaken for a hematoma, this discolouration occurs when tattoo pigments spread out into the subcutaneous tissue beneath the dermal skin ...
VO2 max is a measure of how much oxygen your body absorbs and uses while you work out. (V stands for “volume” while “O2” is for oxygen.) (V stands for “volume” while “O2” is for ...
Medical tattoo: blood type (below razor blade) A medical tattoo is a tattoo used to treat a condition, communicate medical information, or mark a body location for treatment. People may get a paramedical tattoo to conceal a condition or the effects of treatment, such as creating the appearance of an areola after breast reconstruction , or a ...