Receptor Location I
OUTERMOST LAYER OF SKIN
EPIDERMIS
LIGHT TOUCH STIMULI
MERKEL CELLS
What do we call the covering that is formed over the site of injury?
Scab
What do neutrophils do at the injury site?
They go to damaged area, engulf & digest contaminants.
What is the half-moon shape at the bottom of the nail called?
Lunula
BETWEEN EPIDERMIS & HYPODERMIS
DERMIS
SENSORY RECEPTORS FOR THE SENSATION OF COLD
KRAUSE CORPUSCLES
What do capillaries deliver to the tissues?
O2 & Nutrients
What do capillaries take away from the injury site?
CO2 & waste
Where do nails begin to grow?
In the nail root, under the cuticle.
BOTTOM LAYER OF SKIN
HYPODERMIS
CARRY SIGNALS TO BRAIN TO HELP YOU TOUCH, TASTE, SMELL & SEE
SENSORY NERVE FIBERS
What does hemostasis mean?
The body's attempt to stop the bleeding without stopping the blood flow.
What do capillaries do in the body?
Capillaries connect to very small arteries & veins.
What is the protein substance that Nails are made of this is the same material that makes up hair and the outer layer of the skin.
Keratin
BASAL LAYER OF EPIDERMIS
MERKEL CELLS
SENSORY RECEPTORS FOR VIRATION, DEEP PRESSURE, PRECEIVE LOCATION, MOVEMENT, AND ACTION OF BODY PARTS.
PACINIAN CORPUSCLES
What does the body try to do at the injury site?
Clean up wound site: Clear all bacteria, damaged cells & debris from wound bed.
What happens to WBC after a couple of days?
They begin to die off.
What is the nail fold called below the cuticle?
Proximal Nail Fold
DEEP IN THE SKIN, LIGAMENTS & TENDONS.
RUFFINI CORPUSCLE
SENSING THE EXTERNAL ENVIRONMENT THROUGH SKIN, MUSCLES, JOINTS, TENDONS, BONES, AND HAIR.
GLABROUS SKIN
What does blood plasma do at the injury site?
Increase permeability allows plasma to go through vessel walls.
What are the results of the dilation of the capillaries?
WBC can slip through the vessel wall and make their way to the wound site.
What is the skin just under the free edge of your nail called?
Hyponychium
TOUCH RECEPTION, PAIN, & HEAT
PACINIAN CORPUSCLES
PROTECT BODY, KEEP SKIN HYDRATED, PRODUCES NEW SKIN
EPIDERMIS
What does the addition of extra fluid at the injury site look like to us?
Tissue looks swollen and red.
What does a monocyte do at the injury site?
It migrates from the blood stream to the wound site to continue clean up.
What is a nail bed?
The skin beneath the nail plate.
EARS, SOLES OF FEET, PALMS OF HANDS
GLABROUS SKIN
STORES ENERGY, CONNECTS DERMIS TO MUSCLES & BONES, INSULATES BODY
HYPODERMIS
What does the increase of surface area do at the injury site?
Reddened area
Heat transfer into tissue
What is proliferation?
Rebuilding of tissue.
What is the nail plate? What is it made from?
It is the part we call the nail, made up of keratin.
SKIN & MUCOUS MEMBRANES
KRAUSE CORPUSCLES
SUPPORT & PROTECTS SKIN & DEEPER LAYERS, THERMOREGULATION, SENSATOPN.
DERMIS
Inflammation phase begins with ...
Migration of WBC into wound.
What do fibroblasts do?
They produce flexible fibrous material called collagen.
What is the function of the nail groove?
It helps to anchor it to the nail bed and keep the nail growing in the correct direction.
SENSORY GANGLIA OF SPINAL CORD & CRANIAL NERVES
SENSORY NERVE FIBERS
SENSE OF SKIN STRETCHING, MOVEMENT, AND FINGER/ BODY POSITION
RUFFINI CORPUSCLES
What is the process of wound healing?
(4 steps in order)
Hemostasis
Inflammation
Proliferation
Maturation
How does collagen help?
It provides strength & structure to hold the wound together.
What is the function of the cuticle?
Protects new nails from bacteria when they grow out from the nail root.
MOVE THROUGH EPIDERMIS
KERATINIZATION
KERATINS & FILAMENTS SUPPORT EPITHELIAL CELLS, MAINTINA STRUCTURE INEGRITY
KERATINIZATION
What are the factors that influence how a wound heals?
Depth Size Type
Location Infection Health Age
Health
What does the end of maturation phase mean to the wound site? (3 things)
1. Original collagen is replaced with difference stronger collagen.
2. Cell arrangement is in a more favorable pattern to maintain strength.
3. Wound contracts and produces a perfect seal around the wound.
Why is it a good idea to push back the cuticles?
It keeps them sealed to the nail root and prevents the growth of bacteria and germs.