Integumentary System Flashcards
Skin
Largest organ/organ system in the body
Dermatology
Study of skin and diseases of skin
Layers of Skin
Epidermis
Dermis
Subcutaneous
Subcutaneous Layer
Under the skin
Contains fat
Accessory Organs of Skin
Hair (follicles)
Sweat glands
Oil glands
What is another term for sweat glands?
Sudoriferous glands
What is another term for oil glands?
Sebaceous glands
Combining forms for fat tissue (3)
Adipo
Lipo
Steato
Adipocyte
Fat cell
Steatorrhea
Fat in fecal material
What is the cause of steatorrhea?
Blocked bile ducts that could be due to gallstones
What does bile do?
Helps absorb fat in the stomach
Combining forms for skin (3)
Cutaneo
Dermato
Dermo
Cutaneous
Pertaining to skin
Hypodermic
Under the dermis (deep)
Combining forms for sweat (2)
Hidro
Sutero
Hidradenitis
Inflammation of a sweat gland
Terms for profuse sweating (3)
Sudoresis
Diaphoresis
Hyperhidrosis
What word is the exception to the rule of combining forms?
Hidradenitis
Combining form for thickened/hard skin
Kerato
What does kerato refer to?
Skin
Cornea of eyes
Actinic Keratosis
Abnormal thickening of skin due to sun exposure
Precancerous condition
Combining form of fungus
Myco
Dermatomycosis
Fungal infection of the skin
Combining form for nails
Onycho
Onychomalacia
Softening of the nails
Eponychium
Cuticle of nail
Lunula
Half moon shaped, light-colored area at the base of nail
Combining forms of hair (2)
Pilo
Tricho
Trichomycosis
Fungal infection of a hair and/or follicles
Combining form of skin oils
Sebo
Seborrheic dermatitis
Inflammation of the skin causing skin flaking and oily deposits
Dandruff
Combining form of dry
Xero
Xeroderma
Dry skin
Vesicle
Small blister
Puritis
Itching
Combining form of dark
Melano
Melanin
Dark pigments produced within the skin by melanocytes
Melatonin
Hormone associated with sleep and darkness
Produced buy pineal gland
Regulates circadian rhythm
3 Types of Skin Cancer
Basal Cell Carcinoma
Squamous Cell Carcinoma
Melanoma
Basal Cell Carcinoma
Malignant tumor of the basal layer of the epidermis
Most common, but least likely to metastasize
Malignant
Not good
Cancerous
Opposite of benign
Metastasize
Spread
Squamous Cell Carcinoma
Malignant tumor of epidermal cells
More likely to spread
Second most common
Melanoma
Third most common
Most likely of the three to metastasize
Most dangerous
Malignant tumor of melanocytes
What are the three skin cancers related to?
UV radiation exposure
Kaposi Sarcoma
Skin cancer associated with AIDS (almost exclusively)
AIDS
Acquired immunodeficiency syndrome
Caused by HIV
HIV
Human immunodeficiency virus
ABCs of Skin Cancer
Asymmetry Border Color Diamter Elevation & Evolution
All cancers…
Grow
Ecchymosis
Bruise with blood pooling under the skin
Bad bruise typically in elderly patients
Contusion
More typical bruise
Petechia
Very small hemorrhages (pin point)
Formed when little capillaries burst
Caused by leukemia or strenuous activity
Diagnostic Methods
Ultrasound
Xray
CT
MRI
CT
Computerized tomography
Can view in any plane
Able to see soft tissues too
How does an Xray work?
Beams of X-ray are shown through the body
They pass through soft tissues, but not dense things to create an image
Radiopaque
Xray cannot pass through
Radiolucent
Xray can pass through (doesn’t show up on the picture)
MRI
Magnetic Resonance Imaging