Review of Figure 5-1

Which of the following layers nourishes and supports epidermis?

• Hypodermis

• Papillary

• Reticular

Which structure provides strength, color and texture/thickness to hair fibers and is the nonliving portion of hair?

• Hair follicle

• Arrector pili muscle

• Hair shaft

• Sebaceous gland

What is the function of Structure "B"?

• Protects dermis; prevents water loss and entry of pathogens, and synthesize vitamin D3.

• Insulation and padding; lets skin and underlying structures move independently

• Muscle that helps generate heat when the body is cold

• Carry vital nutrients (including oxygen) and carry away waste products

What is "N" pointing to?

• Arrector pili muscle

• Hair shaft

• Hair follicle

• Sebaceous gland

What is the function of structure "M"?

• Used for sensing and transmitting heat, pain, and other sensations

• Muscle that helps generate heat when the body is cold

• Gland in the skin which secretes an oily matter (sebum) into the hair follicles to waterproof, moisturize and protect the skin and hair

• exocrine gland that produces and secretes a substance to regulate temperature and remove waste by secreting water

Identify "I"

• Hair Follicle

• Sweat gland

• Lamellated (pacinian) corpuscle

• Tactile (Meissner's corpuscle)

Which of the following layer includes the two sublayers: papillary (structure D) and reticular (structure E)?

• Epidermis

• Dermis

• Hypodermis

What is the function of structure "G"?

• Nourishes and supports epidermis

• Anchors each hair into the skin; produce hair fibers;

• Used for sensing and transmitting heat, pain, and other sensations.

• Insulates the body from heat and cold, provides protective padding, and serves as an energy storage area

What accessory structure is identified as "N" and produces hair fibers and contain stem cells

• Hair shaft

• Arrector pili muscle

• Hair follicle

• Sweat gland

Identify the structure that is an exocrine gland that produces and secretes a substance to regulate temperature and remove waste by secreting water

• M

• L

• K

• J