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consists of the skin and accessory structures such as hair, glands, and nails
Integumentary System
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Integument means?
Covering
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The appearance of the integumentary system can indicate_ in the body.
Physiological Imbalances
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Reduced blood flow through the skin during a heart attack can cause a person to look _
Pale
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Increased blood flow as a result of increased body temperature can cause a _
Flushed appearance
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Characteristics of measles, chicken pox, and allergic reactions can cause _
Skin Rashes
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Give examples of diseases that can cause skin rashes.
Measles, Chicken Pox, and Allergic Reactions
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What are the 6 major functions of the integumentary system?
Vitamin D Production, Protection, Temperature Regulation, Excretion, Sensation, Stores Blood
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The skin provides protection against what?
Abrasion and Ultraviolet Light
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The integumentary system has _ that can detect heat, cold, touch, pressure, and pain.
Sensory receptors
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The integumentary system has sensory receptors that can detect what?
Hot, Cold, Touch, Pressure, and Pain
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What is the role of Vitamin D?
It is an important regulator of calcium homeostasis.
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Exposed to what that causes the skin to produce a molecule that can be transformed into Vitamin D
Ultraviolet Light
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What are the 2 things that help regulate body temperature?
- 1. The amount of blood flow beneath the skin’s surface
- 2. The activity of sweat glands in the skin
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Small amounts of waste products are lost where?
Through the skin and in gland secretions
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Also known as Skin
Cutaneous Membrane
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The largest organ in the body in weight
Skin
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What are the 2 major tissue layers in the skin?
Epidermis and Dermis
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The most superficial layer of skin.
Epidermis
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A layer of epithelial tissue that rests on the dermis.
Epidermis
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A layer of dense connective tissue.
Dermis
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Average thickness of the epidermis and dermis.
Dermis is 10 to 20 times thicker than the epidermis.
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The tissue layer that provides protection.
Epidermis
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The tissue layer that is responsible for most of the skin’s structural strength.
Dermis
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Subcutaneous Tissue is also known as the?
Hypodermis
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A layer of connective tissue that is NOT part of the skin, but it does connect the skin to underlying muscle or bone.
Subcutaneous Tissue
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Classification of epithelia of epidermis.
Keratinized Stratified Squamous Epithelium
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In the epidermis, new cells are produced by?
Mitosis
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What happens when new cells form and they push older cells to the surface?
They slough, or flake off
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Function of Epidermis
Prevent water loss and resist abrasion
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A process where cells change shape and chemical composition.
Keratinization
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A PROTEIN that makes cells more rigid and durable.
Keratin
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A medical specialty that deals with the structure, function and disorders of the integumentary system.
Dermatology
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What do you call the “layerS” of the epidermis?
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Name the 5 strata from the deepest to the most superficial.
- 1. Stratum Corneum
- 2. Stratum Lucidum
- 3. Stratum Granulosum
- 4. Stratum Spinosum
- 5. Stratum Basale
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Consists of cuboidal and columnar cells that undergo mitotic division about every 19 days.
Stratum Basale
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How many days does it take to push the daughter cell toward the surface?
40-56 days
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Take on flattened appearance and accumulate lipid- filled vesicles.
Stratum Spinosum
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