chapter 2 - specific parts

Question 1

strata (burned)

Answer 1

basale
- deepest portion of epidermis
– One Cell thick – one – one moves up (growth)
– Melanocytes
– Melanoma – cancer with melanin cells (bad cancer) spread like crazy
– 40% of it develops for moles
– These cells sit on the basement layer
– Basale cell carcinoma – most common skin cancer

Question 2

strata (sun)

Answer 2

spinosum
– 8 to 10 cells thick
– Making keratin fiber
– Second most common cancer in skin layer – squamous cell carcinoma

Question 3

strata (get)

Answer 3

granulosum
– Granules being produced with contain some fat, which helps us stay waterproof
- Cells start to die

Question 4

stratum (let’s)

Answer 4

lucidum
- only in Palms and soles (skin is a little thicker) extra few layers for protection

Question 5

stratum (come)

Answer 5

corneum
– 25+ layers of cells – where calluses are involved
– These cells are dead and are falling off
– Cornified cells – really thick group of cells

Question 6

pigments (3 causes)

Answer 6

1) melanin – mainly genetic, but also how much sun you are exposed to, also hormones
2) carotene - yellow pigments – from vegetables – usually found in your palms
3) jaundice - eyes or skin look a little yellow because your liver isn’t processing the things and needs to

Question 7

blood circulation (2 factors)

Answer 7

1) cyanosis - start looking a little blue due to lack of oxygen, could also look slightly red because of exercise
2) erythema - also a reddish color – if you have a fever, allergies, allergic reaction

Question 8

Thickness

Answer 8

build up of cells (corneum)
Areas can be yellowish

Question 9

dermis structure - contains

Answer 9

– Lots of connective tissue, which gives lots of strength
– Nerves, blood vessels, hair, follicles, smooth, muscles, glands, and lymphatic vessels

Question 10

dermis structure - sensory functions

Answer 10

Itching, tickling, pain, temperature, touch, pressure, two point discrimination

Question 11

2 layers of dermis structure (papillary)

Answer 11

• 1/5 - outer
  – Has connected tissue with with elastic fiber – elasticity – wrinkles
  – Also has bumps – gives us fingerprints and prints
  – Capillaries – blood
  – Some touch and pain