ageing: integumentary system

Question 1

changes to epidermis include:

Answer 1

• decrease in melanocytes
• UV light causes free radicals - which can casue mutations -> cancer
• decreased ability to make vitamin D
• loss of epidermal cells
• epidermis thins and seperates easily
• more permeable
• decreased sebacous
• loss of hair follicles

Question 2

decrease in melanocytes in epidermis means:

Answer 2

cant repair damage from UV light
UV light casues free radicals which casue mutations whoch casue cancer

Question 3

decreased ability to make vitamin d in epidermis affects:

Answer 3

bones

Question 4

epidermis being more permeable means:

Answer 4

more water loss
less ability to protect from infectious organisms

Question 5

decreases sebacousin epidermis=

Answer 5

drier skin, more water loss

Question 6

changes to dermis in ageing:

Answer 6

• epidermal- dermal junction flattens
• may loose 20% of dermal layer
  decrease of collagen and elastin
  capillaries become fragile
  sub cutanoeus fat atrophies
  poor temperature regulation

Question 7

decrease of collagen and elastin in dermis=

Answer 7

casues wrinkles

Question 8

capillaires becmoing fragile in dermis=

Answer 8

easy bruising

Question 9

poor temrpature regulation occurs due to:

Answer 9

• decreased hot and cold receptos of nervous system
• decrease of subcutaneous fat
• loss of epidermis to protect from cold
• decreases sweat glands to protect from heat

Question 10

most important chnage in skin due to aging=

Answer 10

epidermal -dermal junction flattenns - fragile, easy to shear skin

Question 11

why are wounds common in older poeple

Answer 11

• orthostatic hypotension
• decreased proprioception
• decreased range of motion
• thin fragile skin
• decreased immue reponse, but increased chronic inflammation
• decreased absoripton of needed minerals and protiens
• decreased oxyge intake
• ischemia of blood vessls
• clotting disturbances
  insulin resistance increasing blood sugar at wound

Question 12

wounds in older poeple: orthostatic hypertenstion imapact

Answer 12

occurs from change sin blood vessels, decreased thirst, poor kidney function, changes to nerves, decreased nutrition and sodium absortion

Question 13

wounds in older poeple: nervous system imapct

Answer 13

decreased proprioception, decreased sensation casues fall

Question 15

wounds in older poeple: musculoskeltal impact

Answer 15

decreased range of morion, decreased muscle mass casues fall

Question 16

wounds in older poeple: intergumentary impact

Answer 16

thi fragile skin

Question 17

wounds in older poeple: immune system impact

Answer 17

decreases immune response but increased chronic indlammation

Question 18

wounds in older poeple: digestive system impact

Answer 18

decreased absoption of needed minerals and proteins for healing

Question 19

wounds in older poeple: pumplanry impact

Answer 19

decreased oxygen intake

Question 20

wounds in older poeple: cardiovasular impact

Answer 20

Ischemia of the blood vessels bringing nutrients and oxygen to the wound

Question 21

wounds in older people: haematological impacy

Answer 21

clotting disturbances cause more localized ischemia; anemia causes less oxygen to be carried for wound healing

Question 22

wounds in older people:L endocroine impact

Answer 22

Insulin resistance increases blood sugar available at wound for germs