Collagen and Skin Layers Quiz

Skin Layers and Functions

• The dermis, the layer beneath the epidermis, is responsible for sensory reception and temperature control.

Epidermis Layers

• The stratum lucidum, a layer of the epidermis, is absent in thin skin.

Cell Production

• The stratum basale, the innermost layer of the epidermis, is responsible for new-cell production.

Connective Tissue

• Elastic fibers provide flexible strength to tissues within the connective tissue.

Hypodermis

• The hypodermis, the layer beneath the dermis, helps to protect body heat.

Outermost Layer

• The stratum corneum, the outermost layer of the epidermis, consists of rough, flakelike dead cells.

Sweat and Sebum Production

• The dermis is responsible for making and distributing sweat and sebum.

Epidermis Layers (continued)

• The stratum lucidum, a layer of the epidermis, is absent in thin skin.

Blood Supply

• The epidermis, the outermost layer of the skin, is avascular, meaning it has no blood supply.

Epidermis Layers (continued)

• The stratum granulosum consists of 2-5 layers of flat dead cells filled with keratohyalin granules.

Epidermis Layers (continued)

• The stratum basale consists of a single layer of columnar cells and is responsible for new-cell production.