8 - The Integument

Question 1

Structure of skin

Answer 1

epidermis, dermis, subcutaneous

Question 2

layers of epidermis

Answer 2

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

Question 3

cell types of epidermis

Answer 3

keratinocytes, melanocytes, merkel cells, langerhans cells

Question 4

Types of skin

Answer 4

thin (hairy) skin and thick (hairless) skin

Question 5

thin skin

Answer 5

Covers most of the body

Has four layers of keratinocytes

Question 6

thick skin

Answer 6

Covers the palms of the hands and soles of the feet

Has five layers of keratinocytes

Question 7

Epidermis

Answer 7

Stratified squamous epithelium
Cells produced in stratum basale migrate upwards
Keratin is synthesised and accumulated

Question 8

Dermis

Answer 8

papillary layer and reticular layer

Question 9

hair and skin

Answer 9

fine threadlike strand growing from the skin

Question 10

hair internal structures

Answer 10

hair matrix, cortex, cuticle

Question 11

sebaceous glands

Answer 11

secrete sebum (oil) into the hair follicles where the hair shafts pass through the dermis

Question 12

sudoriferous glands

Answer 12

eccrine and apocrine

Question 13

eccrine and apocrine

Answer 13

glands that produce sweat; found over most of the body

Question 14

apocrine glands

Answer 14

Sweat glands in the pubic and underarm areas that secrete thicker sweat, that produce odor when come in contact with bacteria on the skin

Question 15

nail structure

Answer 15

• Free edge
• Body
• Root of nail
• There is connective tissue, if this muscle tissue is torn it will cause it to bleed.
• Fibroblasts assist nails for regrowth, calcium can deposit in nails under certain circumstances.