Question

in human hair structure, the largest part of the non - growing portion contains most of the ________. a. blood vessels b. nerve cells c. sebaceous glands d. melanin granules

Explanation:

In human hair structure, the non - growing portion is the hair shaft. Melanin granules in the cortex of the hair shaft determine hair color and are a major component of the non - growing part. Blood vessels are in the dermal papilla (growing part), nerve cells are not major components of the hair shaft, and sebaceous glands are associated with hair follicles but not the main content of the non - growing hair portion.

Answer:

d. melanin granules