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19 Cards in this Set
- Front
- Back
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What are joints?
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Structures that unite two or more bones of the skeleton
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What are the different types of joints?
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Fibrous
Cartilagenous Synovial |
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What types of joints join the bones of the immature skull
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Fibrous joints in the form of developing sutures and fontanelles
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What type of joint unites the vertebral bodies?
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Cartilagenous joints in the form of intervertebral discs
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What helps to reinforce intervertebral discs?
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Anteriorly reinforced by the anterior longitudinal ligament (ALL)
Posteriorly reinforced by the posterior longitudinal ligaments |
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What are characteristics of a synovial joint?
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Joint cavity has synovial fluid
Articular cartilage covers articular surfaces Joint capsule Varying degrees of mobility and stability Capsule is richly innervated by sensory nerves |
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What produces synovial fluid?
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Synovial membrane
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How does normal synovial fluid appear?
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Similar appearance and viscosity of an egg white
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What are isometric, concentric, and eccentric movements?
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Isometric:
- Muscle tension while maintaining the same length Concentric: - Muscle tension when shortening Eccentric: - Muscle tension while lengthening |
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How are synovial joints classified?
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Mobility
Articular surfaces |
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What are the muscles of the rotator cuff?
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Supraspinatus
Infraspinatus Teres minor Subscapularis |
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What is the functional purpose of the subacromial bursa?
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Lubricates movement of the supraspinatus and deltoid muscles during abduction
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What can the filling of the subacromial bursa indicate?
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Tearing of the rotator cuff
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Where are superficial veins located?
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Superficial fascia
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What are retinacula and what do they do?
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Fascial thickenings that prevent the bowing of tendons with movement
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What are tendon sheaths and what do they do?
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Synovial specializations that wrap around tendons to reduce "wear and tear"
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Tendon sheath
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