04 Integument

Question 1

What are the three layers of the integument?

Answer 1

Epidermis
dermis
hypodermis

Question 2

what do the epidermis and dermis together form?

Answer 2

skin

Question 3

what is the epidermis primarily made of?

Answer 3

keratinocytes

Question 4

what is the dermis primarily made of?

Answer 4

fibrocyte

Question 5

what is the hypodermis made of

Answer 5

adipocyte

Question 6

describe stratum basale

Answer 6

stem cell layer; attaches to the basement membrane

Question 7

describe the stratum spinosum layer of the epidermal

Answer 7

crawling layer - spaces for cells to occupy and/or crawl through

Question 8

what is the stratum granulosum epidermal layer? What happens in this layer?

Answer 8

A transitional layer in the epidermis -cells in this layer start to loose their nuclei and turn into keratinised squames of the next layer.

Question 9

What does the stratum corneum layer of the epidermas contain?

Answer 9

mature, fully differentiated dead cells filled with hydrophilliac proteins and surrounded by waxy materials

Question 10

What are the two dermal features?

Answer 10

papillary layer and connective tissue layer

Question 11

What is contained in the papillary layer?

Answer 11

capillaries and sensory receptors

Question 12

What is contained in the connective tissue layer?

Answer 12

fibrocytes, hair folicles and nails, and special structures such as blood vessels, nerve endings and sweat glands.