Chapter 5 - The Integumentary System

Question 1

Layers of the integumentary system, from most superficial to deepest:

Answer 1

Epidermis, dermis, hypodermis, subcutaneous tissue

Question 2

Five layers of the epidermis, most superficial to deepest:

Answer 2

Stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, stratum basale

Question 3

What are the most abundant cells in the stratum basale?

Answer 3

Keratinocytes

Question 4

Cells found in the stratum basale:

Answer 4

Keratinocytes, langerhans cells, melanocytes, tactile (or Merkel) cells

Question 5

Which layer of the epidermis creates calluses?

Answer 5

Stratum lucidum

Question 6

Stratum lucidum is only found where on the body?

Answer 6

Areas with thick skin (palms of the hands, soles of the feet, elbows, etc)

Question 7

Keratinization of the entire cell of the stratum corneum causes what?

Answer 7

The death of the uppermost cells, leading to hardening of the skin

Question 8

The dermis is composed of what kind of connective tissue?

Answer 8

Dense irregular connective tissue

Question 9

Epidermal ridges are commonly known as what?

Answer 9

Fingerprints

Question 10

Is the dermis vascular or avascular?

Answer 10

Vascular