The accessory structures of the integument include the (a) blood vessels, glands, muscles, and nerves, (b) tactile discs, lamellar corpuscles, and tactile corpuscles, (c) hair, skin, and nails, (d) hair follicles, nails, sebaceous glands, and sweat glands.

Multiple ChoiceMore than one choice may apply.Which structure is not associated with a hair?a. Shaftb. Cortexc. Matrixd. Cuticlee. Lunule

Multiple ChoiceMore than one choice may apply.In investigating the cause of thinning hair, which of the following questions needs to be asked?a. Is the diet deficient in proteins?b. Is the person taking megadoses of vitamin C?c. Has the person been exposed to excessive radiation?d. Has the person recently suffered severe emotional trauma?

An arrector pili musclea. is associated with each sweat gland,b. can cause a hair to stand up straight,c. enables each hair to be stretched when wet,d. provides new cells for continued growth of its associated hair.

The portion of the hair follicle where cell divisions occur is the (a) shaft, (b) matrix, (c) root hair plexus, (d) cuticle.

Is a bald man really hairless? Explain.

What are arrector pili? What do they do?

What is the function of the arrector pili muscles?