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Chapter 5 ana
taylor is kinda fat
28
Anatomy
10th Grade
10/18/2011

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Term
integumentary system
Definition
cutaneous membrane and epidermis
Term
cutaneous membrane\skin
Definition
epidermis and dermis
Term
accessory structures
Definition
hair nails and exocrine glands
Term
subcutaneous layer\hypodermis
Definition
attatches integument to deeper layers such as muscles or bone
Term
5 major funtions
Definition
protection, temperature matinence, synthesis and storage of nutrients, sensory reception, exocrine and secretion.
Term
thick skin
Definition
5 layers on hands and soles of feet. surface
stratum corneum
stratum lucidum
statum granulosum
stratum spinosum
stratum germinativum
basement membrane
dermis
Term
thin skin
Definition
4 layers covers rest of body no stratum lucidium
Term
strata
Definition
cell layers
Term
stratum germinativum
Definition
deepest epidermal layer
attatched to the basement membrane by hemidesosomes
forms epidermal ridges
contains melanocytes
Term
basement membrane
Definition
separates epidermis from dermis
Term
epidermis
Definition
no blood vessels
nutrients deliverd by dermal blood vessels
Term
large stem cells
Definition
germinative cells
Term
melanocytes
Definition
cells whose cytoplasmic procceses extend between epithelial cells in this layer, and receptors that provide information.
synthesis melanin a brown yellow brown or black pigment that colors the epidermis
Term
intermediate strata
Definition
stratum spinosum(spiny layer)
stratum granulosum(grainy layer)
stratum lucidum(clear layer)
Term
stratum spinosum
Definition
cells continue to divide and add to thickness of the epithelium
Term
stratum granulosum
Definition
consists of cells displaced from stratum spinosum.
cells stop dividing and start making large amounts of keratin
Term
keratin
Definition
protien
extremely durable and water resistant
Term
stratum lucidum
Definition
covers stratum granulosum in thick skin
flattened densely packed filled with keratin
Term
osum
Definition
suffix added to make words smart.
Term
stratum corneum
Definition
most superficial layer of epidermis
15-30 layers of flattened dead epithelial cells that have accumulated large amounts of keratin (said to be keratinized or cornified.
Term
pigments in epidermis
Definition
carotene and melanin
Term
dermis
Definition
supports epidermis.
pappilary and recticular layers
Term
papillary layer
Definition
loose connective tissue
contains nerves and capillaries
Term
recticular layers
Definition
dense irregular connective tissue
elatic fibers and collagen fibers
Term
basal cell carcinoma
Definition
most common skin cancer
originates in germinativum layer
Term
squamous cell carcinomas
Definition
less common superficial layers of epidermal cells
Term
malignant melanomas
Definition
dangerous.
begins from a mole
grow rapidly
Term
hypodermis\subcutaneous
Definition
not actually part of the integument
connects skin to bone and muscles or other organs and still permits independent movement.
loose connective and adipose.
energy reserve and shock absorber
elastic
no vital organs and few capillaries
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