Final answer:
Hair follicles are the small pores near the mid-dorsal line on the top of the head responsible for hair growth and maintenance.
Step-by-step explanation:
The small pores near the mid-dorsal line on the top of the head are hair follicles. Hair follicles originate in the epidermis and have many different parts, including the hair papilla which is responsible for hair growth.
These follicles are important for the growth and maintenance of hair on the head.