skin test Flashcards
vasconstiation
Constricting blood vessels and bring them away from the surface
vasdiatation
Enlarging blood vessels occurs in superficial capillaries close to the surface
What is a burn
Tissue damage inflicted by intense heat electricity with you she or chemicals
What do you burn victims need
Lots of nutrients and calories by gastric tube supplements by iv
What is surgical debridement
Cleaning
What is dermatome
Shaving pieces of the skin
What are two temporary wound coverings in their function
Allograft cadaver skin or homograph – human cadaver
xenograft Hetrograph which are pig skin
Permanent coverings and their function
Autograft-organ transplant of the skin 2 types
Sheet unburned area of the skin large taken to be stretched
meshed enlarging the donor skin by a machine technique not very durable
Humans are
Homeothermic
What is frostbite
The water inside of skin cells freezing and expanding
What part of the brain controls body temperature
Hypothalamus
What are free nerve endings, their function and their extent
Most lovely distribute to touch receptors involved with light touch paid and he will structural detail extended the dermis into the epidermis
What are free nerve ending attached to
merkel corpusles
What are merkel corpusles funtion and location
A prevalent in the palms of hands and feet sensitive to light touch and pressure
meissner corpusles
Their egg shaped encapsulated they are highly coiled it’s right by Schwan cells they detect light touch in the palms of the hands and soles of the feet lips and external genitalia
ruffini’s corpusles
Found in the dermis sensitive to pressure and skin distortion a.k.a. pulling
pancinian corpusles
Con centric cellular layers with distinctive She’ll found within the dermis sensitive to vibration in the fingertips external genitalia and walls of urinary Blatter
Sensory nerve fibres
Found deep with in the dermis close to the hypodermis a set of nerve endings associated with the roots of surface hair
What two things do sensory nerve fibers decect
Sensations and movement
metabloism
cell relelase of energy in food
what does the body do at temp below 31
stops shivering
funtions of hair
4
guarding against head injury heat loss sun burn sheilds eyes from sun
hair bulb is
where hair extends from -dermis
papilli
provides nurtients to hair bulb
arrector pili
smooth muscles that contact hair follicle
hair root
portion of the hair follicleto the top of epidermis
hair shaft
region of hair that projects from the skin
culticle (hair)
outermost layer single celled layers over like shingles
cortex (Hair)
multilayered flattened cells
medulla(hair)
core shaft large cells big gaps
what 2 things affect hair density
hormones and nutrition
what is alopecia
Baldness
a follicle is
long cannal which the hair grows out of
scientific name for the cuticule
eponchium
what constitutes the nail bed
stratinu germinatuim
basale cell carcinoma
least milligant and common arises from stratum basle
squamous cell carcinomia
arises from the spinosum
metasizes to lymphnode
early removal = good chance to get better
milligant melanoma
most deadly cancer of malanocytes
metasizes rapidly into the lymphs and blood vessels
uses ABCD dectcion
