Unit 9 - Skin, Hair & Nails , Bed Baths Flashcards
What is the epidermis?
Thin tough outer layer of the skin made up of epithelial tissue
What part of the skin is exposed, top portion made of multiple layers, constantly sheds and is keratinized?
Stratum Corneum
What part of the skin is the innermost layer, reproduces cells, contains melanin & keratin?
Stratum Germinativum
What creates fingerprints?
Epidermal ridges in the germinativum layer
Where on our body do we have the most layers of skin?
Palms of our Hands and Soles of our feet due to constant work and load.
True or false?
The skin is vascular?
False, it is avascular. It does not have its own blood supply and it gets its blood from the dermis below.
What layer will be damaged in the third degree burn that will require skin grafts?
Germinativum, it anything above is damaged it can be repaired, but once it hits this layer the reproductions of cells is damaged and therefore will need skin grafts.
What is your skin colour based on?
Pigments in the vascular bed
Keratin - Orange tone
melanin - brown tone
vascular bed - pink tone.
What is the dermis?
Dense irregular, connective tissue.
It contains collagen for strength, elastic fibres for flexibility
blood vessels, nerves, sensory receptors, lymphatics
What layer are the hair follicles, sweat and sebaceous glands located?
The dermis
What is the subcutaneous layer?
Below the skin Adipose tissue (fatty tissue) Stabilizes skin Shock absorber and heat storage Useful site to administer drugs
What is the function of our skin?
Protection Barrier Perception (pain) Maintain temp Identification Communication (flushing) wound repair Absorption, excretion Productions of Vit D
What is blanching?
Pushing on skin that will cause it to turn white. colour will return within 3 seconds.
What is arrector pili?
Goosebumps, cause the hair to stand up.
What does vestigial mean?
Doesn’t have a purpose in our survival (hair is vestigial)
What is Vellus hair?
Peach fuzz that is found everywhere on our bodies
What is Terminal hairs?
hair that is found on our head, armpits, face and groin
What is sebum?
Fatty lipid based product. It causes vernix to produce in the womb (waxy like cheese substance) that covers baby and protects them, produced from sebaceous glands. It will wait there till puberty
What is the purpose of sweat glands?
Flushes our skin and takes microorganisms with it, keeps us cool and provides protection.
When we work out, moisture is created on our skin. What is water productions from sweat glands called?
Eccrine
What causes a cloudy, odours sticky product that is produced in the groin, armpits and around the nipples?
Apocrine glands, Active after puberty
What is Pruritus?
Itching
What is Ecchymosis?
excessive bruising
What are parts of the nail?
Nail plate nail bed cuticle lateral nail fold lunula nail matrix
What does the nail do?
Protects fingers and toes, nail plates will alter with disease and can be a window into what is happening inside the patient.
Ie: Clubbing of fingers and very flat nail plate is associated with COPD