integumentary system consists of - answerskin, hair, nails, sweat glands, sebaceous
(oil) glands
Epidermis - answerthe superficial layer of the skin
consist mostly of keratinized stratified squamous epithelium
- is avascular
Demis - answerunderlies epidermis
-vascular
-supplies nutrients to epidermis
-connective tissue
-includes fibroblasts, macrophages and sometimes white Blood cells
- contains fibres in the matrix
-contains nerves, blood vessels and lymphatic vessels
Contian epidermal hair follicles, oil glands and sweat glands
Hypodermis - answersubcutaneous layer,
this is a layer of *fat located under the dermis of the skin.
The hypodermis helps to insulate the body and protects underlying muscles and other
structures.
Keratinocytes - answerproduce keratin
tightly connected by desmosomes
Melancytes - answerproduce melanin, which is packaged into melanosomes\
-melanosomes transfer keratinocytes, where they protect the nucleus from UV damage
Dendritic cells - answerSupport immune system
specialized white blood cells that patrol the body searching for antigens that produce
infections
Tactile Cells - answersensory Neurons
touch and feel
, layers of epidermis
(Come Lets Get Sun Burnt) - answerCorneum
Lucidum
Granulosum
Spinosum
Basale
stratum basale - answerDeepest layer
firmly attached to the dermis
highly vascular
row of stem cells that divide
produces skin cells
stratum spinosum - answerSeveral layers thick
contains prekeratin filaments attached is desmosomes
-allows them to resist tension and pulling
gives skin integrity
stratum granulosum - answerthin layer of flatted cells i
cells appearance changes
-Nuclei and organelles disintegrate
- keratinization beings
cells slow water lose
cells above this layer die
they are starting to die at this time
stratum lucidum - answerfound only in thick skin
appears glassy
so packed
dead keratinocytes
stratum corneum - answerseveral row of flat, non nucleates, keratinized dead cells
3/4 of epidermis thickness
protect
prevent water loss
protect from abrasion and penetation
barrier
Apoptosis - answercell death
Papillary - answerSuperficial layer of areolar connective tissue consisting of loose,
interlacing collagen and elastic fibres and blood vessels.
Loose fibres allow phagocytes to patrol for microorganisms
enhances grip
contributes to sense of touch
sweat pores
Los beneficios de comprar resúmenes en Stuvia estan en línea:
Garantiza la calidad de los comentarios
Compradores de Stuvia evaluaron más de 700.000 resúmenes. Así estas seguro que compras los mejores documentos!
Compra fácil y rápido
Puedes pagar rápidamente y en una vez con iDeal, tarjeta de crédito o con tu crédito de Stuvia. Sin tener que hacerte miembro.
Enfócate en lo más importante
Tus compañeros escriben los resúmenes. Por eso tienes la seguridad que tienes un resumen actual y confiable.
Así llegas a la conclusión rapidamente!
Preguntas frecuentes
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
100% de satisfacción garantizada: ¿Cómo funciona?
Nuestra garantía de satisfacción le asegura que siempre encontrará un documento de estudio a tu medida. Tu rellenas un formulario y nuestro equipo de atención al cliente se encarga del resto.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller DESTINYGRACE. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for $13.99. You're not tied to anything after your purchase.