Exam 4 Part 5 Flashcards
Healing of wounds involving the epidermis:
Results is greater mitotic activity in the stratum basale & stratum spinosum
Healing wound involving dermis/ or subcutaneous layer: Step 1
Wound causes rupture of blood vessels w/in the dermis (& subcutaneous layer if that deep) w/ resulting in bleeding
Healing wound involving dermis/ or subcutaneous layer: Step 2
Blood platelets & fibrinogen proteins form a clot, which stops bleeding
Healing wound involving dermis/ or subcutaneous layer: Step 3
Scab forms and seals off wound
T/F Along w/ scab forming you may see signs of inflammation as damaged cells & foreign microorganisms are destroyed by immune cells
True
Healing wound involving dermis/ or subcutaneous layer: Step 4
W/in dermis; fibroblasts form collagen fibers which binds wound edges together; w/in the epidermis, epithelial cells migrate in from wound edges & start proliferating
Healing wound involving dermis/ or subcutaneous layer: Step 5
Scab sloughs off when healing is nearly complete
- Injury of epidermis ONLY
- Skin becomes warm & reddened; surface layers of skin may be shed (peeling)
Frist degree burn
- Deconstruction of epidermis & some underlying dermis as well (but NOT accessory organs)
- Skin blisters & healing process will involve epithelial cells from the accessory organs w/in the damaged area
Second degree burn
With a second degree burn do you still have the hair follicle & exocrine ducts?
YES
- Destroys the epidermis, dermis, & accessory organs
- Epithelial healing can occur ONLY at the margins of injury
Third degree burn
- Destruction extends through ALL layers of the skin & perhaps into the underlying tissues
- Epithelial healing can occur ONLY at the margins of the injury
Fourth degree burn
Neoplasms can be:
Benign or malignant
Mole or a wart is considered a?
benign neoplasm
Benign growth of pigmented melanocytes
Mole (aka nevus)
Abnormal growth of skin tissue caused by viral infection
Wart (aka verruca)
Cutaneous carcinoma
Due to long term exposure to UVR; malignant
Divisible into basal cell carcinoma & squamous cell carcinoma
Cutaneous carcinoma
Due to relatively short, but intense exposure to UVR
Cutaneous melanoma : very malignant
What is the rule for identification for cutaneous melanoma?
ABCD rule
What does the A stand for?
Asymmetry
What does the B stand for?
Borders
What does the C stand for?
Colors
What does the D stand for?
Increasing Diameter
They have now added an E to the rule, what does that stand for?
Evolution (any unexplained change)
1) dietary deficiencies
2) Heavy metal exposure (hair & nails)
3) Allergic reactions (rashes/immune response)
4) Specific diseases (ex. iron deficiency anemia skin looks pale, Liver dysfunction Jaundice, yellowing of the skin & eye)
Integumentary system as a clinical indicator
