click below
click below
Normal Size Small Size show me how
Chapter 4
Integumentary System and Body Membranes
Question | Answer |
---|---|
dry membrane, outermost protective boundary | Epithelial membranes |
keratinized stratified squamous epidermis | Superficial epidermis |
mostly dense connective tissue | underlying dermis |
surface epithelium , lines all body cavities that open to the exterior body surface | Mucous membranes |
surface simple squamous epithelium, underlying areolar connective tissue | Serous membrane |
outer | pariteal |
inner | visceral |
abdominal cavity | peritoneum |
around the lungs | pleura |
around the heart | denardium |
synovial membrane | connective tissue membrane |
helping to reduce friction to our joints | synovial fluid |
outer layer of the skin | Epidermis |
containing fibroblasts, adipocytes and macrophages | Dermis |
they are tear resistant | Dermis |
most superficial stratum of the epidermis | Stratum corneum |
It consist of dead squamous cells filled with keratin | Stratum corneum |
thin layer of cells is found only in the thick skin | stratum lucidum |
due to further changes to the keratinocytes as they pushed from the stratum spinousm | Stratum granulosum |
spriny appearance due to protruding cell processes that join the cells via structure | Stratum Spinosum |
consist of cuboidal or columnar cells that undergo mitotic divisions about every 19 days | Stratum basale |
deep to dermis is the | hypodermis |
subcutaneous layer and this is a adipose tissue they anchor the skin to underlying organs | hypodermis |
group of pigments primarily responsible for skin, hair, and eye | melanin |
color is yellow to brown to black | melanin |
package melanin to vesicles | Melanosome |
they help bind our body together | dermis |
upper dermal region | papillary layer |
deepest skin layer | reticular layer |
prevent bacteria to enter deeper into the body tissue | Phagocytes |
consists of collagen and elastic fibers | Phagocytes |
yellow, brown or black pigments | Melanin |
orange - yellow pigment from some vegetables | carotene |
red coloring from blood cells in dermis capillaries | Hemoglobin |
oxygen content determines the extent of red coloring | Hemoglobin |
they produce oils | Sebaceous Glands |
keeps our skin soft and moist | Sebum |
also called sudoriferous glands | Sweat glands |
open viaduct to pore on skin surface | Eccrine |
they produce sweat | Eccrine |
ducts empty into hair follicles | Apocrine |
epithelia tissue, very flexible and fast growing tissue | Hair |
consists of large cells and air spaces | Central Medulla |
covers the medulla | Cortex |
outside of cortex | Cuticle |
dermal and epidermal sheath surrounding hair root | hair follicle |
outer part and is mostly composed of dermal connective tissue | Fibrous sheath |
provied blood supply to the matrix inside the hair bulb | Hair Papilla |
small bands of smooth muscle cells They are the one that keeps your hair erected | Arrector Pill |
scale-like modifications of the epidermis | Nails |
is found all at the proximal area and responsible for nail growth | Nail Matrix |
proximal nail fold that projects onto the nail body | Eponychium |
caused by fungal infection, also known as tinea pedis | Athlete's foot |
caused by bacterial infection | Boils and Carbuncles |
inflammation of the hair follicles and sebaceous glands | Boils and Carbuncles |
caused by virus - herpes simplex virus, usually caused by U.V light exposure | cold sores |
exposures cause allergic reaction | contact dermatitis |
caused by bacterial infection, usually develop around mouth and nose | Impetigo |
caused by over production of our skin cells | Psoriasis |
tissue damage and cell death caused by heat, electricity, UV radiation or chemicals | Burns |
way to determine the extent of burns | rule of nines |
each area represents about? | 9% |
only epidermis is damaged | First-degree burn |
epidermis and upper dermis are damaged | Second-degree burn |
destroys entire skin layers | Third-degree burn |
abnormal cell mass | cancer |
does not spread | Benign |
metastasized to other parts of the body | Malignant |
most common type of skin cancer | Basal cell carcinoma |
arises from stratum spinosum, fast growing and they metastasize easily to the lymph nodes | Squamous cell Carcinoma |
most deadly of skin cancer | Malignant Melanoma |