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30 Cards in this Set
- Front
- Back
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Describe cardiac muscle |
It is involuntary, lightly striated, single nuclei, and only found in the heart |
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Describe skeletal muscle |
It is voluntary, striated, multi-nucleated, and involved in posture and movement |
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Describe smooth muscle |
It is involuntary, not striated, and only found in internal organs |
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How are muscles named |
After a point of attachment, the general location, the number of heads, or for their actions |
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What is the muscle origin |
The fixed end of the muscle |
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What is the muscle insertion |
The moveable end of a muscle |
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What two proteins are found in muscles |
Actin and myocin |
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What membrane is wrapped around muscle fibers |
Sarcolemma |
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What is muscle tone |
When a few muscle cells remain contracted to bring about firmness |
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Explain the all or none principal as it relates to muscle contraction |
A single muscle fiber contracts maximally or not at all |
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What causes muscle soreness after strenuous exercise |
Lactic acid |
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What is muscular atrophy |
Decrease in muscle size due to lack of use |
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What is muscular hypertrophy |
Increase in size of the muscle |
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What is tetanus |
A state of sustained contraction as a result of repeated stimuli |
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What are the components of the integumentary system |
Hair, skin, and nails |
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What are the major functions of the integumentary system |
Protect against bacteria Maintain a constant temperature Prevent water loss because of keratin Excrets waste like salt and urea Produces vitamin c in the presence of sun Recieves 4 types of sensation (pressure, pain, hot, and cold) |
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What are the three layers of skin |
Epidermis, dermis, hypodermis |
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Describe the epidermis |
Outermost layer, protects/replicates cells, and contains keratin |
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Describe the dermis |
Vascular, contains sweat glands, hair follicles, nerve endings, and blood vessels |
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Describe the hypodermis |
Connects the muscle sheath to skin |
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What is another name for the hypodermis |
Subcutaneous layer |
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What is cyanosis |
When the skin or lips turn bluish due to lack of oxygen because of poor circulation |
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What is jaundice |
When the skin, nail beds, and eyes turn yellow due to a liver malfunction |
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What is dermatitis |
Inflammation of the skin |
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What are fissures |
Cracks in the skin |
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What are pustules |
Raised, pus filled areas |
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What is anemia |
When the skin is pale due to an iron deficiency |
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What is a cyst |
A fluid filled pocket |
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What is an ulcer |
An open, non healing wound |
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What are corns and callouses |
Thickened areas of the skin produced as a result of repeated pressure |
