(21) The inner portion of a human hair. recognizable by the spaghetti like strands that hold the color pigment is called the cortex. root. follicle. cuticle. medulla.

The answer is **medulla**.<br /><br />The medulla is the innermost layer of the hair shaft. It's often a fragmented or discontinuous layer, and its appearance can vary (even within the same hair). It's characterized by those "spaghetti-like strands" which contain the pigment granules that give hair its color.<br />