Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
30 Cards in this Set
- Front
- Back
|
Integumentry System Accounts for what % of body weight?
|
16%
Integumentary cover an area of 1.2-2.3 m2 |
|
|
What 3 layers make up the skin?
|
Epidermis
Dermis Subcutaneous Tissue |
|
|
The color of normal skin depends on what 4 pigments?
|
Melanin
Carotene Oxyhemoglobin Deoxyhemoglobin |
|
|
What is Central Cyanosis?
|
A bluish discoloration of the mucous membranes in the mouth, indicating hypoxemia and respiratory failure.
|
|
|
What is Peripheral Cyanosis?
|
A bluish discoloration of the digits.
|
|
|
What part does Melanin play in determining skin color?
|
Is genetically determined.
Increases w/sun exposure. |
|
|
What part does Carotene play in determining skin color?
|
Gives skin a yellow/orange hue.
Is found in subQ fat & heavily keratinized areas (palms & feet). |
|
|
What part does Oxyhemoglobin play in determining skin color?
|
Is bright red gives off a pinkish hue to the skin.
It predominates the arteries & capillaries. Increases blood flow. |
|
|
What part does deoxyhemoglobin play in determining skin color?
|
Venous blood, blue or darker tint.
|
|
|
How does skin change as it ages?
|
Wrinkles
Becomes lax Loses turgor Vascularity decreases causing lighter skin to look paler & more opaque. |
|
|
Name the appendages of the skin;
|
Hair
Nails Sebaceous glands Sweat glands |
|
|
How does hair change as it ages?
|
Loses pigment
Thins on the scalp (genetic) Receding hairline (genetic) |
|
|
How do nails change as they age?
|
Yellow & thicken
|
|
|
Name 4 common benign skin lesions;
|
Cherry angiomas
Seborrhiec ketratoses Actinic lentigines (Solar Lentigo) Actinic keratoses |
|
|
ROS questions regarding skin exam?
|
Rashes? Itching? Lumps or Bumps? Bruising (easy) Bleeding? Ulcers or Sores that don't heal, Changes in skin (color or texture)? Moles that have changed Shape, Color or Size? Excessive Sweating, Hair changes? Nail changes?
|
|
|
What are some causes of generalized itching?
|
Dry skin, Aging, Pregnancy, Uremia, Jaundice, Lymphomas & Leukemia, Drug Reaction, Lice.
|
|
|
What % of melanomas are detected by the pt?
|
50%
|
|
|
What are the most common CAs in the US?
|
Skin CA
|
|
|
Where are most skin CAs found?
|
Sun exposed areas
|
|
|
What are the 3 main types of skin CA?
|
Basal Cell Carcinoma
Squamous Cell Carcinoma Melanoma |
|
|
What is the most common type of skin CA & what % does it account for?
|
Basal Cell
80% |
|
|
What layer does Squamous Cell Carcinoma come from?
|
Upper layer of the epidermis.
|
|
|
What % of skin cancers does Squamous Cell Carcinoma account for?
|
16%
|
|
|
Describe what Squamous Cell Carcinoma looks like;
|
Crusted & scaly w/a red inflamed or ulcerated appearance.
|
|
|
Do Squamous Cell Carcinoma metastasize?
|
Yes they can.
|
|
|
Describe what Basal Cell Carcinoma looks like?
|
Shiny & translucent & they grow slowly.
|
|
|
What layer does Melanoma come from?
|
The lowest level of the epidermis, it arises from the melanocytes.
|
|
|
What % of skin cancers does Melanoma account for?
|
4%
|
|
|
Which skin CA is the most rapidly increasing malignancy?
|
Melanoma
|
|
|
What is the life time risk for invasive & non-invasive melanoma?
|
1 in 65 Invasive
1 in 37 noninvasive |
