Hair & Scalp SciencesQuestion 70 of 100
Sebum, which lubricates the hair and skin, is produced by the:
a.Sweat glands
b.Arrector pili muscle
c.Dermal papilla
d.Sebaceous (oil) glands
Explanation
The sebaceous glands secrete sebum, an oily substance that lubricates and protects the skin and hair. Overactivity can cause oily scalp conditions, while underactivity leads to dryness.
Practice all 100 questions free — no signup required.
Related questions on this topic
- The technical term for gray hair, caused by loss of natural pigment, is:
- 'Alopecia' refers to:
- The medical term for split ends is:
- Hair elasticity, the ability of hair to stretch and return, is determined mainly by bonds in the:
- Which bone forms the forehead?
- The only movable bone of the skull, forming the lower jaw, is the:
Last reviewed: · editorial process
PrepPass Editorial Team · Verified against California Barber Written Licensing Exam · How we review