Tech I quiz 2
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What are the 5 Joint Classifications?
- Motion: None
- Structure: Fibrous-Suture
- Example: Skull
- Motion: Slight
- Structure: Fibrous-Ligamentous
- Example: distal tibiofibular
- Motion: none
- Structure: Peg in Socket
- Example: Tooth
- Motion: Little
- Structure: Cartilagenous
- Example: intevertebral discs
- Motion: Free
- Structure: Synovial
- Example: Hip, Elbow, Knee
What dictates the motion allowed at a bone joint?
The shape of the bone
What are the 2 kinds of tension within a muscle?
- ** the total amount of tension within a muscle is a combination of active and passive **
What is active tension?
- The amount of tension that a muscle can actively generate
- controlled by: Actin, myosin & the sliding filament theory
What is passive tension?
- the tension in the non-contractile units of the muscle
- Increases as it is stretched
- Decreases when it is contracted
What is muscle excursion?
- The total distance a muscle can lengthen from its maximally shortened position
- Can shorten to 1/2 its resting length
- Can lengthen to 1 1/2 its resting length
- Has the most power at 1.2X it's resting length
- Passive tendon tension builds up to the point that it pulls everything in
- Functional with quadriplegic's to pull in their fingers
Observation of a patient begins when?
At first contact
skin turns blue due to a lack of O2 or too much CO2
too little bloodflow or hemoglobin
Localized redness of the skin due to; sunburn, fever or carbon monoxide poisoning
What causes yellow skin?
increased carotin levels or liver disease
What is a pitting edema?
When you palpate the skin stays indented
The study of measurements of the human body
The use of tape to measure the circumference of a limb
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