WEEK 10 PRACTICAL

Question 1

What are the 3 layers to thin/thick skin

Answer 1

1. epidermis
2. dermis (papillary and reticular dermis)
3. hypodermis

Question 2

What does the epidermis consist of?

Answer 2

keratinised stratified squamous epithelium- protects against friction and dryness

Question 3

What does the papillary dermis consist of? what are its functions

Answer 3

loose connective tissue, containing the neurovascular supply to the epidermis. provides shock absorption/cushioning to the epidermis

Question 4

What does the reticular dermis consist of? and what are its functions

Answer 4

it comprises dense irregular connective tissue, provides structural support, stability and elasticity to the skin

Question 5

What does the hypodermis consist of? and what are its functions

Answer 5

Consists of adipocytes. functions include insulation, energy storage as fat, protection, anchoring superficial layers of skin

Question 6

What are the 5 layers of the dermis from bottom to top

Answer 6

stratum basale
stratum spinosum
stratum granulosum
stratum lucidum
stratum corneum

Question 7

What are the glands associated with the integumentary system?

Answer 7

sweat glands (eccrine and apocrine)
sebaceous glands

Question 8

What are sensory structures associated with the skin?

Answer 8

hair follicles
arrector pili muscles
tactile epithelial (merkel) cells
tactile (meissner) corpuscles
lamellar Pacinian corpuscles

Question 9

What are the two main parts of the lymphatic system?

Answer 9

• a network of lymphatic vessels that return fluid that has leaked out of blood vessels, back into the blood
  -Lymphoid organs and tissues, which contain phagocytes and lymphocytes that direct the immune response