Layers [√]

II. MYOCARDIUM

The middle layer of the heart wall is the myocardium— the muscle tissue of the heart and the thickest layer of the heart wall. It is composed of cardiac muscle cells, or cardiomyocytes. Cardiomyocytes are specialized muscle cells that contract like other muscle cells, but differ in shape. Compared to skeletal muscle cells, cardiac muscle cells are shorter and have fewer nuclei. Cardiac muscle tissue is also striated (forming protein bands) and contains tubules and gap junctions, unlike skeletal muscle tissue. Due to their continuous rhythmic contraction, cardiomyocytes require a dedicated blood supply to deliver oxygen and nutrients and remove waste products such as carbon dioxide from the cardiac muscle tissue. This blood supply is provided by the coronary arteries.

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the middle part of my heart tethers between the lines of  a new-found sense of reality and the act of keeping and letting go of things you have no control over

this part of my heart is a complex mixture of both the good and the bad days, of lessons learned, of lies and truths, of the bittersweet first and last times, and the memories of nostalgia and childhood i have outgrown

this chapter is dedicated to the part of my heart that is the gatekeeper of my wishes