Chapter 4- Skin & Body Membranes Flashcards
Showing up more in Caucasians
Hemoglobin
Hemoglobin is poorly oxygenated
Cyanosis
Erythema
Redness-blushing, hypertension, inflammation,allergy
Pailor
Blanching-pale-fear,anger also anemia,low blood pressure, impaired blood flow
Jaundice
Yellowness-liver disorder
Sites where blood has escaped and clotted in tissue; can happen w/disease or Vitamin C deficiency
Bruises
Clotted blood mass
Hematoma
Cutaneous glands
Exocrine glands release secretions to skin’s surface via ducts
Sebaceous glands
Oil glands excepts on plans and soles
Open into hair follicle and some to surface
Sebum
Is product clump of oil and cels; keeps skin moist and prevents hair from drying out
Kills some bacteria
More active during adolescence
Sweat glands
Sweat comes through a pore; helps regulate temp
Eccrine
All over the body and make sweat
Mostly water NaCL, vitamin C and traces of metabolic waste
Apocrine glands
Mostly at axillary and genital areas; ducts empty into hair follicles; contains fatty acids and proteins
Hair
are by hair follicles and is flexible epithelial structure
Fastest growing tissue in the body
Have hormone control
Hair roots in
Hair follice
Hair has central core called
Medulla
Medulla
Surrounded by a cortex
Covered by a cuticle(most keratinized region)
Gives strength
Hair pigments are made by
Melanocytes in hair bulb
Frizz
Cuticle worn away/spilt ends
Hair follicles
Contain inner epidermal sheath that forms hair/outer dermal sheath is connective tissue/papilla yield blood supply to matrix in hair bulb
Errector pilli
smooth muscle that raise hair in response to temp
Scale like product of dermis
Nails