quiz 1 Flashcards
what are the three layers of the skin
epidermis ( 5 layers)
dermis (2 layers)
hypodermis/ subcutaneous layer
what cells are in the epidermis
melanocytes
langerhan cells, Merkel cells, keratinocytes
melanocytes
produce ,melanin, a pigment that contributes to skin color and absorbs UV light to protect DNA from damage
langerhan cells
participate in immune response by fighting various microbes that invade the skin
merkel cells
sensory receptor cells that are responsible to the sensation of light touch
keraintiocytes
produce keratin, a though protective protein that protects the skin & creates water repellent seal
what two type of cells does the stratum basal contain
melanocytes and merkel cells
what are the two layers of the dermis
papillary layer
reticular layer
what type of cells does the reticular layer contain
pacian cporpulaus
That types of wounds regenerate
Superficial wounds of the epidermis
Partial thickness wounds of the dermis
WWhat types of wounds heal by filling in( repair)
Subcutaneous tissue
Muscle tssue
Inflammatory phase
4-6 days
Clear away bacteria and dead cells
Vascular respone
Local transient vasoconstriction in response to injury
Mediated by neoepnephirne
Prolonged my serotonin
Inhibits oxygenation of surrounding tissue- homeostasis
Plateletts leukocyte a and erythrocytes are released
Result of a trauma or a surgery
Acute wounds
What are superficial wounds
Stage I pressure ulcers
Contusion/bruises
1st degree burns