Chapter 18: Skin
Which of the following components of the epidermis provides sealant between adjacent cells?
a. Keratohyaline granules
b. Glycolipids and lipids
Which cells derive from precursors originating in the bone marrow and function as antigen-presenting cells in skin?
Cells responsible for producing the pigment for dark hair are located in which of the following?
a. The cortex of the hair shaft
b. Throughout the hair shaft
c. The internal root sheath of the hair
d. The dermal papilla of the hair bulb
e. The hair matrix (zone of dividing and differentiating cells) of the hair bulb
Which of the following separates the hair follicle from the connective tissue of the dermis?
Which structure typifies reticular dermis but not papillary dermis?
b. Dense irregular connective tissue
c. Meissner tactile corpuscles
e. Type I collagen fibers
Which of the following best characterizes sebaceous glands?
a. Its duct drains onto the skin surface.
b. It releases its contents via holocrine secretion.
c. It primarily secretes water and salts.
d. Its secretory units are supplied by adrenergic stimulation.
e. It is located typically in the reticular dermis.
Myoepithelial cells aid in the secretory process of ...