Chapter 8, Joints
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Created by:
Clittzen on October 14, 2009
Subjects:
Classes:
Anatomy and Physiology, anatomy and physiology MCI newport news 2012, Yavapai College 2nd Year Second Semester
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33 terms
Terms | Definitions |
|---|---|
What are the Structural Classification of Joints? | Fibrous, Cartilaginous, and Synovial. |
What are the Functional Classification of Joints? | Synarthroses, Amphiarthroses, Diarthroses. |
What is the classification Synarthroses mean? | Immovable. |
What is the classification Amphiarthroses? | Slightly movable. |
WHat is the classification Diarthroses? | Freely movable. |
What is the function of a joint? | Give the skeleton mobility and hold the skeleton together. |
What is the weakest part of the skeleton? | Joints. |
What is a synovial joint? | Those joints in which the articulating bones are separated by a fluid filled containing joint cavity. Freely movable diarthroses. Largest and mos complex joint of hte body. Allows flexion, extention and some roation. |
What does Origin mean? | Attachment to the immovable bone. |
What does Insertion mean? | Attachment to the movable bone? |
What are the types of Angular Movement? | Flexion, Extention, Dorsiflexion, Plantar Flexion, Abduction, Adduction, Circumduction. |
What is Flexion movement? | Bending movement that decreases the angle of a joint. |
What is an Extention movement? | Reverse of flexion; joint angle is increased. |
What is a Dorsiflexion and plantar flexion? | Up and down movement of hte foot. |
What is an Abduction? | Movement away from the midline. |
What is a Adduction? | Movement toward the midline. |
What is a Circumduction? | Movement describes a cone in space. |
What are the Special Movements? | Supination, pronation, inversion, eversion, protraction, retraction, elevation, depression, and opposition. |
What is a Supination? | Pointing superiorly. Holding a bowl of soup. |
What is Pronation? | Pointing inferiorly, opposite of supination. |
What is a protraction? | Extending forward, mandible underbite. |
What is a retraction? | Retracting backwards, mandible overbite. |
What is an Elevation? | Raised superiorly, closed mouth. |
What is a depression? | Lowered inferiorly, open mouth. |
What is an Inversion? | Moving Medially of the foot, towards the midline. |
What is an Eversion? | Moving laterally of the foot, towards the outside. |
What is an Opposition? | Creating a O, or an OK symbol, thumb and finger. |
What is a Hinge Joint? | Cylindrical projections of one bone fits into a trough-shaped surface on another. Motion is along side a singl plane. Uniaxial joints permit flexion and extension only. EXAMPLES: ELBOW and INTERPHALANGEL JOINTS. |
What is a Condyloid or Ellipsoidal Joint? | Oval articular surfae of one bone fits into a complementary depression in another. Both articular surfaces are oval. Biaxal joints permit all angular motions. Example: RADIOCARPALS, METACARPOPHALANGEAL joints. |
What is a Ball and Socket Joint? | A spherical or hemispherical head of one bone articulates with a cuplike socket of another. Muliaxial joints permit the most freely moving synovial joints. Examples: SHOULDER AND HIP JOINTS. |
What is a Sprain? | The ligaments reinforcing a joint are stretched or torn. Partially torn ligaments slowly repair themselves. Completely torn ligaments require prompt surgical repair. |
What is a Dislocation? | Occur when bones are forced out of alignment. Usually accompanied by sprains, inflammation, and joint immobilization. Caused by serious falls and are common sports injuries. |
What is a Subluxation? | Partial Disolcation of a joint. |
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